/* roulang page: index */
:root{
  --ink:#0F2A23;
  --ink-deep:#0B1F1A;
  --lime:#C8F45C;
  --lime-deep:#B6E24A;
  --sand:#E9E3D6;
  --bg:#F7F5F0;
  --paper:#FFFFFF;
  --paper-2:#FBFAF6;
  --text:#14201C;
  --muted:#55635D;
  --line:#E2DDD1;
  --line-strong:#D5CFC0;
  --danger:#B4482F;
  --r-lg:16px;
  --r-xl:20px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.06);
  --sh-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --pad-x:clamp(20px,4vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:88px;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--ink-deep)}
img{max-width:100%;display:block;border:0}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

/* Foundation 默认外观覆盖 */
body a{color:var(--ink)}
body a:hover{color:var(--muted)}
body .button{background:var(--lime);color:var(--ink);border:0;border-radius:var(--r-pill)}
body input,body textarea,body select{box-shadow:none}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x)}
@media (min-width:1440px){.wrap{max-width:1280px}}
.wrap .grid-x.grid-padding-x{margin-left:-14px;margin-right:-14px}
.wrap .grid-x.grid-padding-x > .cell{padding-left:14px;padding-right:14px}

/* 顶部滚动进度 */
.progress-bar{position:fixed;top:0;left:0;height:2px;width:0;background:var(--lime);z-index:200;transition:width .1s linear}

/* 导航 */
.site-head{position:sticky;top:0;z-index:120;padding:10px 0;transition:padding .25s var(--ease)}
.site-head .wrap{display:block}
.head-card{
  display:flex;align-items:center;gap:18px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:10px 14px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease),padding .25s var(--ease);
}
.site-head.is-compact{padding:6px 0}
.site-head.is-compact .head-card{box-shadow:var(--sh-2);border-color:var(--line-strong);padding:7px 12px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{position:relative;width:32px;height:32px;border-radius:10px;background:var(--ink);flex:none;overflow:hidden}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;margin:-5.5px 0 0 -5.5px;background:var(--lime);border-radius:2px;transform:rotate(45deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.1;font-weight:800;font-size:1.02rem;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:.68rem;font-weight:600;letter-spacing:.14em;color:var(--muted);margin-top:3px}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:10px;
  font-size:.9rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;
  transition:all .2s var(--ease);
  white-space:nowrap;
}
.nav-card::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--line-strong);transition:background .2s var(--ease)}
.nav-card:hover{background:var(--sand);color:var(--ink);border-color:var(--line)}
.nav-card:hover::before{background:var(--ink)}
.nav-card.is-active{background:var(--ink);color:#F3F1EA;border-color:var(--ink)}
.nav-card.is-active::before{background:var(--lime)}
.head-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 移动抽屉 */
.drawer{display:none;margin-top:10px}
.drawer.is-open{display:block;animation:dropIn .28s var(--ease)}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.drawer-panel{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:var(--sh-2)}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-card{display:flex;flex-direction:column;gap:4px;padding:12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--paper)}
.drawer-card strong{font-size:.92rem;font-weight:700;color:var(--ink)}
.drawer-card span{font-size:.72rem;color:var(--muted);line-height:1.5}
.drawer-card:hover{background:var(--sand)}
.drawer .btn{width:100%;justify-content:center;margin-top:12px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;
  border-radius:var(--r-pill);
  font-size:.95rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:all .22s var(--ease);
}
.btn .arrow{transition:transform .22s var(--ease);font-size:1rem;line-height:1}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:#F3F1EA;border-color:rgba(243,241,234,.45)}
.btn-ghost:hover{background:rgba(243,241,234,.12);color:#fff;border-color:rgba(243,241,234,.8)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-outline:hover{background:var(--ink);color:#F3F1EA;border-color:var(--ink)}
.btn-dark{background:var(--ink);color:#F3F1EA;border-color:var(--ink)}
.btn-dark:hover{background:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}

/* 通用板块 */
.section{padding:clamp(64px,8vw,120px) 0}
.section-tight{padding:clamp(48px,6vw,88px) 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:700;letter-spacing:.14em;color:var(--lime);text-transform:uppercase;margin-bottom:18px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.eyebrow.dark{color:var(--muted)}
.eyebrow.dark::before{background:var(--ink)}
.section-title{font-size:clamp(1.55rem,3vw,2.35rem);font-weight:800;letter-spacing:-.015em;line-height:1.3}
.section-lead{margin-top:16px;font-size:1.02rem;line-height:1.85;color:var(--muted);max-width:56ch}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);font-size:.75rem;font-weight:700;letter-spacing:.02em;background:rgba(200,244,92,.18);color:var(--ink);border:1px solid rgba(200,244,92,.5)}
.badge.soft{background:var(--sand);border-color:var(--line);color:var(--muted)}
.sticky-head{position:sticky;top:110px}

/* Hero */
.hero-shell{padding-left:var(--pad-x);padding-right:var(--pad-x);max-width:1200px;margin:0 auto}
@media (min-width:1440px){.hero-shell{max-width:1280px}}
.hero{position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--ink-deep);min-height:min(86vh,740px);display:flex;align-items:center;margin-top:6px}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.62;transform:scale(1.02)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(15,42,35,.96) 0%,rgba(15,42,35,.84) 46%,rgba(11,31,26,.58) 100%)}
.hero-inner{position:relative;z-index:2;width:100%;padding:clamp(48px,7vw,92px) 0}
.hero h1{font-size:clamp(1.95rem,4.1vw,3.5rem);line-height:1.18;font-weight:800;letter-spacing:-.02em;color:#F3F1EA;max-width:17em}
.hero-sub{margin-top:22px;font-size:clamp(1rem,1.3vw,1.12rem);line-height:1.85;color:rgba(243,241,234,.82);max-width:42ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;margin-top:40px;padding-top:24px;border-top:1px solid rgba(243,241,234,.16);gap:0}
.hero-trust li{display:flex;flex-direction:column;padding-right:26px;margin-right:26px;border-right:1px solid rgba(243,241,234,.18)}
.hero-trust li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-trust strong{font-family:"IBM Plex Sans",Inter,system-ui,sans-serif;font-size:1.4rem;font-weight:700;color:var(--lime);line-height:1.2}
.hero-trust span{font-size:.78rem;color:rgba(243,241,234,.7);letter-spacing:.04em;margin-top:2px}
.hero-card{background:var(--paper-2);border:1px solid rgba(243,241,234,.2);border-radius:var(--r-lg);overflow:hidden;box-shadow:0 24px 60px -28px rgba(0,0,0,.6);transform:translateY(10px)}
.hero-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-card figcaption{padding:14px 16px;font-size:.82rem;color:var(--muted);line-height:1.7}

/* 卖点 */
.value-block{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.value-list li{border-top:1px solid var(--line);padding:26px 0 26px 20px;position:relative;transition:padding-left .25s var(--ease)}
.value-list li:last-child{border-bottom:1px solid var(--line)}
.value-list li::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:2px;background:var(--lime);transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease)}
.value-list li:hover::before{transform:scaleY(1)}
.value-list li:hover{padding-left:28px}
.value-item-head{display:flex;align-items:baseline;gap:14px}
.value-idx{font-family:"IBM Plex Sans",Inter,system-ui,sans-serif;font-size:.85rem;font-weight:700;color:var(--muted);letter-spacing:.06em;flex:none}
.value-list h3{font-size:1.08rem;font-weight:700;letter-spacing:-.01em}
.value-list p{margin-top:8px;font-size:.95rem;line-height:1.85;color:var(--muted)}

/* 演示区 */
.demo-block{background:var(--sand)}
.demo-main{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.demo-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.demo-caption{padding:16px 20px;font-size:.85rem;color:var(--muted);border-top:1px solid var(--line)}
.demo-text h2{margin-bottom:6px}
.demo-points{margin-top:26px;display:grid;gap:14px}
.demo-points li{display:flex;gap:12px;align-items:flex-start;font-size:.95rem;color:var(--text);line-height:1.8}
.demo-points li::before{content:"";flex:none;width:8px;height:8px;border-radius:2px;background:var(--lime);margin-top:11px}
.demo-thumbs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.thumb-card{border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--paper);transition:all .25s var(--ease);cursor:pointer}
.thumb-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s var(--ease)}
.thumb-card span{display:block;padding:10px 12px;font-size:.82rem;font-weight:600;color:var(--muted)}
.thumb-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.thumb-card:hover img{transform:scale(1.03)}
.thumb-card.is-active{border-color:var(--lime);box-shadow:0 0 0 1px var(--lime)}
.thumb-card.is-active span{color:var(--ink)}

/* 证据区 */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.stat-item strong{display:block;font-family:"IBM Plex Sans",Inter,system-ui,sans-serif;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:700;color:var(--ink);line-height:1.1;letter-spacing:-.02em}
.stat-item strong em{font-style:normal;color:var(--lime-deep);font-size:.6em;margin-left:2px}
.stat-item span{display:block;margin-top:8px;font-size:.85rem;color:var(--muted);line-height:1.7}
.case-scroll{position:relative;margin-top:36px}
.case-track{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:thin}
.case-track::-webkit-scrollbar{height:6px}
.case-track::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:6px}
.case-card{
  flex:0 0 clamp(260px,30vw,340px);scroll-snap-align:start;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.case-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-body{padding:16px 18px 20px}
.case-body h3{margin-top:10px;font-size:1rem;font-weight:700;line-height:1.55}
.case-body p{margin-top:8px;font-size:.85rem;color:var(--muted);line-height:1.75}

/* 最新信息 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.news-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);display:flex}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-link{display:flex;flex-direction:column;width:100%;color:inherit}
.news-thumb{overflow:hidden;background:var(--sand)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.news-body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1}
.news-body h3{margin-top:10px;font-size:1rem;font-weight:700;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{margin-top:8px;font-size:.86rem;color:var(--muted);line-height:1.78;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8rem;color:var(--muted)}
.news-meta .read{font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:4px}
.news-card--lead{grid-column:span 2;grid-row:span 2}
.news-card--lead .news-thumb img{aspect-ratio:16/9}
.news-card--lead .news-body h3{font-size:1.28rem;-webkit-line-clamp:2}
.news-card--lead .news-body p{-webkit-line-clamp:3;font-size:.94rem}
.news-empty{border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:42px 24px;text-align:center;color:var(--muted);background:var(--paper-2);grid-column:1 / -1}
.news-empty a{display:inline-block;margin-left:8px;font-weight:700;color:var(--ink);border-bottom:2px solid var(--lime)}

/* 价格档位 */
.price-block{background:var(--paper)}
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:36px}
.price-card{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--paper-2);padding:28px 28px 30px;transition:all .25s var(--ease);display:flex;flex-direction:column}
.price-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--line-strong)}
.price-card.is-featured{background:var(--paper);border-color:var(--ink)}
.price-tag{position:absolute;top:-13px;right:24px;background:var(--lime);color:var(--ink);font-size:.75rem;font-weight:800;padding:4px 14px;border-radius:var(--r-pill);letter-spacing:.04em}
.price-name{font-size:1.16rem;font-weight:800;letter-spacing:-.01em}
.price-desc{margin-top:8px;font-size:.88rem;color:var(--muted);line-height:1.75}
.price-num{display:flex;align-items:baseline;gap:6px;margin:22px 0 6px}
.price-num strong{font-family:"IBM Plex Sans",Inter,system-ui,sans-serif;font-size:clamp(2rem,3.4vw,2.6rem);font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1}
.price-num .unit{font-size:.85rem;color:var(--muted);font-weight:600}
.price-line{height:1px;background:var(--line);margin:20px 0}
.price-list li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;font-size:.92rem;color:var(--text);line-height:1.75}
.price-list li::before{content:"";flex:none;width:7px;height:7px;border-radius:50%;background:var(--lime-deep);margin-top:11px}
.price-card .btn{margin-top:auto;width:100%;justify-content:center;margin-top:24px}

/* FAQ */
.faq-block{background:var(--bg)}
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;padding:22px 0 22px 16px;text-align:left;
  font-size:1rem;font-weight:600;color:var(--text);position:relative;
  transition:color .2s var(--ease);
}
.faq-q::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:var(--lime);transform:scaleY(0);transform-origin:top;transition:transform .25s var(--ease)}
.faq-item.is-open .faq-q::before{transform:scaleY(1)}
.faq-q:hover{color:var(--ink-deep)}
.faq-sign{position:relative;width:16px;height:16px;flex:none}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.faq-sign::before{left:0;top:7px;width:16px;height:2px}
.faq-sign::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a-inner{padding:0 0 24px 16px;font-size:.94rem;line-height:1.9;color:var(--muted);max-width:66ch}

/* CTA 面板 */
.cta-panel{position:relative;overflow:hidden;background:var(--ink);border-radius:var(--r-xl);padding:clamp(34px,5vw,64px);color:#F3F1EA}
.cta-panel::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border:1px solid rgba(200,244,92,.28);border-radius:50%;pointer-events:none}
.cta-panel::before{content:"";position:absolute;right:40px;bottom:-90px;width:180px;height:180px;border:1px solid rgba(243,241,234,.14);border-radius:50%;pointer-events:none}
.cta-panel h2{color:#F3F1EA;font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:800;letter-spacing:-.015em;max-width:16em}
.cta-panel p{margin-top:14px;color:rgba(243,241,234,.78);font-size:1rem;line-height:1.85;max-width:46ch}
.cta-form{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px;position:relative;z-index:2}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:.8rem;font-weight:600;letter-spacing:.04em;color:rgba(243,241,234,.72)}
.field input,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;
  border-radius:var(--r-md);border:1px solid rgba(243,241,234,.28);
  background:rgba(243,241,234,.06);color:#F3F1EA;font-size:.95rem;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(243,241,234,.42)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--lime);background:rgba(243,241,234,.1);box-shadow:0 0 0 4px rgba(200,244,92,.16)}
.form-actions{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px}
.form-note{font-size:.8rem;color:rgba(243,241,234,.6);line-height:1.7}
.form-feedback{grid-column:1 / -1;font-size:.88rem;color:var(--lime);min-height:0;display:none}
.form-feedback.is-on{display:block}

/* 浮动 CTA */
.fab{
  position:fixed;right:24px;bottom:24px;z-index:150;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:var(--r-pill);
  background:var(--lime);color:var(--ink);font-weight:800;font-size:.92rem;
  box-shadow:0 16px 36px -14px rgba(16,32,28,.45);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .28s var(--ease),transform .28s var(--ease),background .2s var(--ease);
}
.fab.is-on{opacity:1;transform:none;pointer-events:auto}
.fab:hover{background:var(--lime-deep);color:var(--ink)}

/* 页脚 */
.site-foot{background:var(--ink-deep);color:rgba(243,241,234,.78);padding:clamp(48px,6vw,80px) 0 0;margin-top:clamp(48px,6vw,80px)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand .brand-text{color:#F3F1EA}
.foot-brand .brand-sub{color:rgba(243,241,234,.55)}
.foot-brand .brand-mark{background:rgba(243,241,234,.1);border:1px solid rgba(243,241,234,.2)}
.foot-desc{margin-top:18px;font-size:.88rem;line-height:1.9;color:rgba(243,241,234,.62);max-width:32ch}
.foot-col h3{font-size:.8rem;font-weight:700;letter-spacing:.14em;color:rgba(243,241,234,.5);text-transform:uppercase;margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:.9rem;color:rgba(243,241,234,.78);border-bottom:1px solid transparent;padding-bottom:2px;transition:all .2s var(--ease)}
.foot-col a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.foot-col p{font-size:.88rem;line-height:1.9;color:rgba(243,241,234,.62)}
.foot-bottom{margin-top:44px;border-top:1px solid rgba(243,241,234,.14);padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem;color:rgba(243,241,234,.5)}
.foot-bottom a{color:rgba(243,241,234,.6)}
.foot-bottom a:hover{color:var(--lime)}

/* 滚动揭示 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* 响应式 */
@media (max-width:1023px){
  .head-nav{display:none}
  .burger{display:flex}
  .head-actions .btn{display:none}
  .head-card{gap:12px}
  .brand{margin-right:auto}
  .sticky-head{position:static;top:auto}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero{min-height:auto}
  .hero-card{margin-top:34px;transform:none}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--lead{grid-column:span 2;grid-row:auto}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media (max-width:767px){
  body{font-size:15.5px;padding-bottom:76px}
  .hero-trust li{padding-right:18px;margin-right:18px}
  .hero h1{font-size:clamp(1.7rem,7.4vw,2.4rem)}
  .demo-thumbs{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .cta-form{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .news-card--lead{grid-column:auto}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .fab{left:0;right:0;bottom:0;justify-content:center;border-radius:0;padding:16px 20px calc(16px + env(safe-area-inset-bottom))}
}
@media (max-width:519px){
  .stat-row{grid-template-columns:1fr;gap:20px}
  .hero-actions .btn{width:100%}
  .drawer-grid{grid-template-columns:1fr}
  .case-card{flex:0 0 84%}
}

/* roulang page: article */
:root{
  --ink:#0F2A23;
  --ink-deep:#0B1F1A;
  --ink-line:#1C3F35;
  --lime:#C8F45C;
  --lime-deep:#B6E84A;
  --sand:#E9E3D6;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --card-soft:#FBFAF6;
  --text:#14201C;
  --muted:#55635D;
  --line:#E2DDD1;
  --danger:#B4482F;
  --r-lg:16px;
  --r-sm:12px;
  --shadow-1:0 1px 2px rgba(16,32,28,.06);
  --shadow-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:24px;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;background:transparent;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
figure{margin:0;}
a:focus-visible,button:focus-visible,.btn:focus-visible{outline:2px solid var(--lime);outline-offset:3px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.wrap{padding:0 32px;}}
@media (min-width:1440px){.wrap{max-width:1280px;padding:0 48px;}}

/* ---------- 顶部滚动进度 ---------- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;background:transparent;z-index:90;pointer-events:none;}
.scroll-progress i{display:block;height:100%;width:0;background:var(--lime);transition:width .08s linear;}

/* ---------- 导航 ---------- */
.site-head{position:sticky;top:0;z-index:80;padding:12px 0 4px;}
.head-shell{
  position:relative;
  display:flex;align-items:center;gap:16px;
  background:var(--ink);
  border:1px solid var(--ink-line);
  border-radius:var(--r-lg);
  padding:10px 14px;
  box-shadow:var(--shadow-2);
  transition:padding .28s var(--ease),background .28s var(--ease);
}
.site-head.is-scrolled .head-shell{padding:6px 12px;background:var(--ink-deep);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{position:relative;width:26px;height:26px;border-radius:9px;background:var(--lime);flex:0 0 auto;}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--ink);}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;font-size:1.0625rem;font-weight:800;color:#F3F1EA;letter-spacing:.01em;}
.brand-sub{font-size:.6875rem;font-weight:500;letter-spacing:.16em;color:#9DB3A9;}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-card{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid rgba(243,241,234,.14);
  color:#D9E3DC;font-size:.9375rem;font-weight:500;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.nav-card:hover{background:rgba(243,241,234,.09);color:#FFFFFF;border-color:rgba(200,244,92,.55);transform:translateY(-1px);}
.nav-card:active{transform:translateY(0);}
.nav-card.is-active{background:var(--lime);color:var(--ink);border-color:var(--lime);font-weight:700;}
.nav-cta{display:none;}
.head-cta{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  min-height:42px;padding:0 20px;border-radius:999px;
  background:var(--lime);color:#12241D;font-size:.9375rem;font-weight:700;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.head-cta:hover{background:var(--lime-deep);color:#0B1F1A;transform:translateY(-1px);}
.nav-toggle{
  display:none;align-items:center;gap:8px;margin-left:auto;
  min-height:42px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid rgba(243,241,234,.2);color:#EAF1EC;font-size:.9375rem;
}
.nav-toggle:hover{border-color:rgba(200,244,92,.6);color:#FFFFFF;}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .head-cta{display:none;}
  .head-nav{
    display:none;
    position:absolute;left:0;right:0;top:calc(100% + 8px);
    background:var(--ink);border:1px solid var(--ink-line);
    border-radius:var(--r-lg);padding:14px;
    grid-template-columns:1fr 1fr;gap:10px;
    box-shadow:var(--shadow-2);
  }
  .head-nav.is-open{display:grid;}
  .nav-card{justify-content:flex-start;padding:0 14px;min-height:48px;background:rgba(243,241,234,.04);}
  .nav-cta{display:flex;grid-column:1 / -1;justify-content:center;margin-top:4px;background:var(--lime);color:var(--ink);border-color:var(--lime);font-weight:700;}
}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:26px 0 0;font-size:.8125rem;color:var(--muted);}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:#B9C3BD;}
.crumbs a{color:var(--muted);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.crumbs a:hover{color:var(--ink);border-color:var(--ink);}
.crumbs li[aria-current]{color:var(--text);font-weight:600;}

/* ---------- 阅读布局 ---------- */
.read-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:22px 0 8px;}
@media (min-width:1024px){.read-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:28px 0 8px;}}
.read-main{min-width:0;}

.article-head{padding-bottom:8px;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;
  background:rgba(200,244,92,.3);color:#2C5220;
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
}
.article-head h1{
  margin:16px 0 0;
  font-size:clamp(1.75rem,3.6vw,2.9rem);
  line-height:1.22;font-weight:800;letter-spacing:-.02em;
  color:var(--ink);
}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:.8125rem;color:var(--muted);}
.meta-line .sep{width:1px;height:12px;background:var(--line);}
.meta-line b{font-weight:600;color:#334A41;}

.cover-card{margin:26px 0 0;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--card-soft);box-shadow:var(--shadow-1);}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 正文排版 ---------- */
.prose{margin-top:34px;max-width:720px;font-size:1.0625rem;line-height:1.9;color:var(--text);}
.prose p{margin:0 0 1.4em;}
.prose h2{
  margin:2.5em 0 .8em;padding-left:14px;
  border-left:2px solid var(--lime);
  font-size:clamp(1.3rem,2.2vw,1.65rem);font-weight:700;line-height:1.4;color:var(--ink);
  scroll-margin-top:110px;
}
.prose h3{margin:1.9em 0 .7em;font-size:1.125rem;font-weight:600;color:var(--ink);scroll-margin-top:110px;}
.prose h4{margin:1.6em 0 .6em;font-size:1rem;font-weight:600;}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.3em;list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin:.45em 0;padding-left:.15em;}
.prose li::marker{color:#7A8C84;}
.prose blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--sand);border-left:3px solid var(--lime);
  border-radius:var(--r-sm);color:#2A3B34;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-sm);border:1px solid var(--line);margin:1.5em 0;}
.prose figure figcaption{font-size:.8125rem;text-align:center;color:var(--muted);margin-top:8px;}
.prose a{color:#1F5B48;text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(31,91,72,.4);transition:color .2s var(--ease),text-decoration-color .2s var(--ease);}
.prose a:hover{color:var(--ink);text-decoration-color:var(--lime);}
.prose table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.9375rem;}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.prose th{background:var(--sand);font-weight:600;color:var(--ink);}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.prose code{background:rgba(20,32,28,.06);padding:2px 6px;border-radius:6px;font-size:.9em;}

/* ---------- 空态 ---------- */
.empty-card{
  margin-top:34px;padding:44px 28px;text-align:center;
  background:var(--card);border:1px dashed #C9C3B4;border-radius:var(--r-lg);
}
.empty-card h2{font-size:1.35rem;color:var(--ink);}
.empty-card p{margin:12px auto 24px;max-width:38ch;color:var(--muted);font-size:.9375rem;}

/* ---------- 标签与返回 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row .lbl{font-size:.75rem;letter-spacing:.12em;color:var(--muted);font-weight:600;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  background:var(--card-soft);border:1px solid var(--line);
  font-size:.8125rem;color:#334A41;transition:background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--sand);border-color:#CFC8B7;color:var(--ink);}
.back-row{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:26px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:.9375rem;font-weight:600;color:#1F5B48;transition:color .2s var(--ease);}
.text-link .arw{transition:transform .22s var(--ease);}
.text-link:hover{color:var(--ink);}
.text-link:hover .arw{transform:translateX(-3px);}
.text-link.is-fwd:hover .arw{transform:translateX(3px);}

/* ---------- 侧栏 ---------- */
.read-side{display:flex;flex-direction:column;gap:18px;}
@media (min-width:1024px){.read-side{position:sticky;top:104px;align-self:start;}}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-card .eyebrow{display:block;margin-bottom:12px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 10px;border-radius:var(--r-sm);
  font-size:.9375rem;color:#2F443C;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-list a:hover{background:var(--sand);color:var(--ink);}
.side-list a .arw{color:#8FA096;transition:transform .2s var(--ease),color .2s var(--ease);}
.side-list a:hover .arw{transform:translateX(3px);color:var(--ink);}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto;}
.toc-list a{
  display:block;padding:8px 12px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:.875rem;color:var(--muted);line-height:1.55;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.toc-list a:hover{color:var(--ink);background:var(--card-soft);}
.toc-list a.is-current{color:var(--ink);font-weight:600;border-left-color:var(--lime);background:rgba(200,244,92,.12);}
.toc-list a.lv3{padding-left:24px;font-size:.8125rem;}
.eyebrow{display:inline-block;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700;}

/* ---------- 继续浏览 ---------- */
.related{padding:clamp(48px,7vw,88px) 0 0;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px;}
.sec-head h2{font-size:clamp(1.35rem,2.6vw,1.9rem);color:var(--ink);}
.sec-head p{margin-top:8px;color:var(--muted);font-size:.9375rem;max-width:48ch;}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFC8B7;}
.rel-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--sand);}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .thumb img{transform:scale(1.03);}
.rel-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card h3{font-size:1.0625rem;color:var(--ink);}
.rel-card p{font-size:.875rem;color:var(--muted);line-height:1.7;flex:1;}
.rel-card .go{display:inline-flex;align-items:center;gap:6px;font-size:.875rem;font-weight:600;color:#1F5B48;}
.rel-card .go .arw{transition:transform .22s var(--ease);}
.rel-card:hover .go .arw{transform:translateX(3px);}

/* ---------- CTA ---------- */
.cta-band{padding:clamp(56px,8vw,104px) 0 clamp(40px,6vw,72px);}
.cta-inner{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1fr;gap:26px;
  background:var(--ink);border-radius:22px;
  padding:clamp(32px,5vw,60px);
  color:#F3F1EA;
}
@media (min-width:900px){.cta-inner{grid-template-columns:1.4fr .8fr;align-items:center;gap:40px;}}
.cta-inner .eyebrow{color:#9DB3A9;}
.cta-inner h2{margin-top:12px;font-size:clamp(1.4rem,2.8vw,2.05rem);color:#F7F7F2;}
.cta-inner p{margin-top:14px;color:#C3D0C8;font-size:.9375rem;line-height:1.85;max-width:46ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media (min-width:900px){.cta-actions{justify-content:flex-end;}}
.cta-inner::after{
  content:"";position:absolute;right:-60px;bottom:-70px;width:240px;height:240px;
  border:1px solid rgba(200,244,92,.28);border-radius:50%;pointer-events:none;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;
  font-size:.9375rem;font-weight:700;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn .arw{transition:transform .22s var(--ease);}
.btn:hover .arw{transform:translateX(3px);}
.btn-primary{background:var(--lime);color:#12241D;}
.btn-primary:hover{background:var(--lime-deep);color:#0B1F1A;transform:translateY(-1px);}
.btn-ghost{border-color:rgba(20,32,28,.24);color:var(--text);background:transparent;}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#F3F1EA;transform:translateY(-1px);}
.cta-inner .btn-ghost{border-color:rgba(243,241,234,.34);color:#F3F1EA;}
.cta-inner .btn-ghost:hover{background:#F3F1EA;border-color:#F3F1EA;color:var(--ink);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:75;
  display:inline-flex;align-items:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;
  background:var(--lime);color:#12241D;font-size:.9375rem;font-weight:700;
  box-shadow:0 14px 30px -12px rgba(15,42,35,.5);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .22s var(--ease);
}
.float-cta.is-on{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--lime-deep);}
@media (max-width:639px){
  body{padding-bottom:96px;}
  .float-cta{
    left:12px;right:12px;bottom:0;justify-content:center;
    border-radius:16px 16px 0 0;padding:0 18px;min-height:56px;
    padding-bottom:env(safe-area-inset-bottom);
  }
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--bg);border-top:1px solid var(--line);padding:clamp(44px,6vw,72px) 0 26px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media (min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.foot-brand .brand-mark::after{background:var(--bg);}
.foot-brand .brand-text{color:var(--ink);}
.foot-brand .brand-sub{color:#8A9A92;}
.foot-desc{margin-top:16px;font-size:.875rem;line-height:1.8;color:var(--muted);max-width:34ch;}
.foot-col h3{font-size:.8125rem;letter-spacing:.12em;text-transform:uppercase;color:#8A9A92;font-weight:700;margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:.9375rem;color:#334A41;border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.foot-col a:hover{color:var(--ink);border-color:var(--lime);}
.foot-col p{font-size:.9375rem;line-height:1.9;color:#334A41;}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  font-size:.8125rem;color:#7C8C84;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}
@media (max-width:639px){
  .article-head h1{font-size:clamp(1.6rem,7vw,2.1rem);}
  .prose{font-size:1rem;}
  .meta-line{font-size:.75rem;}
  .card-grid{gap:16px;}
}

/* roulang page: category1 */
:root{
  --ink:#0F2A23;
  --ink-deep:#0B1F1A;
  --lime:#C8F45C;
  --lime-deep:#B4E63F;
  --sand:#E9E3D6;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --card-warm:#FBFAF6;
  --text:#14201C;
  --muted:#55635D;
  --line:#E2DDD1;
  --reverse:#F3F1EA;
  --danger:#B4482F;
  --r-lg:16px;
  --r-xl:24px;
  --r-md:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,32,28,.06);
  --sh-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --wrap:1200px;
  --font:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"IBM Plex Sans","Inter",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--ink-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:-.012em;line-height:1.25}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
@media (min-width:640px){.wrap{padding:0 32px}}
@media (min-width:1024px){.wrap{padding:0 48px}}
@media (min-width:1440px){.wrap{max-width:1280px}}

/* ---------- 滚动进度条 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0;
  background:var(--lime);z-index:90;transition:width .08s linear;
}

/* ---------- 顶部卡片式导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:70;
  padding:10px 20px 0;
}
@media (min-width:640px){.site-head{padding:10px 32px 0}}
.head-card{
  max-width:var(--wrap);margin:0 auto;
  display:flex;align-items:center;gap:12px;
  background:rgba(247,245,240,.95);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:10px 14px;
  box-shadow:var(--sh-1);
  transition:padding .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
@media (min-width:1440px){.head-card{max-width:1280px}}
.site-head.is-tight .head-card{
  padding:6px 14px;
  border-color:#CFC8B8;
  box-shadow:var(--sh-2);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand-mark{width:26px;height:26px;border-radius:8px;background:var(--ink);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--lime)}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;font-size:1.0625rem;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:.6875rem;font-weight:600;letter-spacing:.14em;color:var(--muted)}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-card{
  display:inline-flex;align-items:center;
  height:44px;padding:0 16px;border-radius:var(--r-md);
  font-size:.9375rem;font-weight:600;color:var(--muted);
  border:1px solid transparent;background:transparent;
  white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.nav-card:hover{background:var(--sand);color:var(--ink);transform:translateY(-1px)}
.nav-card.is-active{background:var(--ink);color:var(--reverse);box-shadow:var(--sh-1)}
.nav-card.is-active:hover{background:var(--ink-deep);color:#fff}
.head-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;margin-left:6px;
  border-radius:var(--r-pill);background:var(--lime);color:#0F2A23;
  font-size:.9375rem;font-weight:700;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.head-cta:hover{background:var(--lime-deep);color:var(--ink-deep);transform:translateY(-1px)}
.nav-toggle{
  display:none;margin-left:auto;
  height:44px;padding:0 18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--card);color:var(--ink);
  font-size:.9375rem;font-weight:600;cursor:pointer;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.nav-toggle:hover{background:var(--sand);border-color:#CFC8B8}
.nav-drawer{
  max-width:var(--wrap);margin:8px auto 0;
  background:var(--card-warm);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);
  overflow:hidden;max-height:0;opacity:0;
  transition:max-height .36s var(--ease),opacity .24s var(--ease);
}
@media (min-width:1440px){.nav-drawer{max-width:1280px}}
.nav-drawer.is-open{max-height:520px;opacity:1}
.drawer-inner{padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.nav-drawer .nav-card{
  height:48px;justify-content:flex-start;
  background:var(--card);border:1px solid var(--line);color:var(--text);
  padding:0 16px;
}
.nav-drawer .nav-card:hover{background:var(--sand)}
.nav-drawer .nav-card.is-active{background:var(--ink);color:var(--reverse);border-color:var(--ink)}
.drawer-cta{grid-column:1/-1;justify-content:center;margin-top:2px}
@media (max-width:1023px){
  .head-nav,.head-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center}
}
@media (min-width:1024px){
  .nav-drawer{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:.96875rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn .arrow{display:inline-block;transition:transform .24s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{background:var(--lime);color:#0F2A23}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink-deep);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:rgba(243,241,234,.42);color:var(--reverse)}
.btn-ghost:hover{background:var(--reverse);border-color:var(--reverse);color:var(--ink)}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--reverse)}
.btn-dark{background:var(--ink);color:var(--reverse)}
.btn-dark:hover{background:var(--ink-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}

/* ---------- 通用标签 / 徽章 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);display:inline-block}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(200,244,92,.16);color:#3D5121;
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
}
.badge-sand{background:rgba(233,227,214,.9);color:#4B4A3F}

/* ---------- Hero ---------- */
.hero-shell{padding:0 20px;margin-top:14px}
@media (min-width:640px){.hero-shell{padding:0 32px}}
@media (min-width:1024px){.hero-shell{padding:0 48px}}
.hero-card{
  position:relative;max-width:var(--wrap);margin:0 auto;
  border-radius:var(--r-xl);overflow:hidden;
  min-height:300px;
  display:flex;align-items:center;
  background:var(--ink);
}
@media (min-width:1440px){.hero-card{max-width:1280px}}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(102deg,rgba(15,42,35,.94) 0%,rgba(15,42,35,.78) 52%,rgba(15,42,35,.42) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  padding:clamp(30px,4.4vw,58px);
  width:100%;
}
.hero-inner .eyebrow{color:rgba(243,241,234,.72)}
.hero-inner .eyebrow::before{background:var(--lime)}
.page-hero h1{
  color:var(--reverse);
  font-size:clamp(1.85rem,3.5vw,3rem);
  line-height:1.12;font-weight:800;letter-spacing:-.02em;
  margin:14px 0 0;max-width:24ch;
}
.hero-lead{
  margin:16px 0 0;max-width:46ch;
  color:rgba(243,241,234,.82);
  font-size:clamp(1rem,1.2vw,1.0625rem);
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:14px 20px;margin-top:26px;
  color:rgba(243,241,234,.72);font-size:.8125rem;
}
.hero-meta li{display:inline-flex;align-items:center;gap:9px}
.hero-meta li+li::before{content:"";width:1px;height:12px;background:rgba(243,241,234,.32);display:inline-block}

/* ---------- 板块通用 ---------- */
.section{padding:clamp(60px,7.5vw,104px) 0}
.section-sand{background:var(--sand)}
.section-head{max-width:60ch;margin-bottom:clamp(28px,3.4vw,44px)}
.section-title{
  font-size:clamp(1.6rem,2.6vw,2.3rem);
  line-height:1.2;font-weight:700;letter-spacing:-.018em;
  margin-top:12px;
}
.section-lead{margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.85;max-width:56ch}

/* ---------- 索引区 ---------- */
.index-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media (min-width:1024px){
  .index-grid{grid-template-columns:340px 1fr;gap:40px}
}
.index-aside{
  background:var(--card-warm);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
}
@media (min-width:1024px){
  .index-aside{position:sticky;top:104px}
}
.card-label{
  font-size:.75rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);margin:0 0 10px;
}
.aside-title{font-size:1.125rem;font-weight:700;margin:0 0 18px}
.aside-links{display:grid;gap:8px}
.aside-links a{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--card);
  font-size:.9375rem;font-weight:600;color:var(--text);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.aside-links a span{
  font-family:var(--font-num);
  font-size:.75rem;font-weight:700;color:var(--muted);letter-spacing:.06em;
}
.aside-links a:hover{background:var(--sand);border-color:#CFC8B8;transform:translateX(2px);color:var(--ink)}
.aside-links a.is-current{background:var(--ink);border-color:var(--ink);color:var(--reverse)}
.aside-links a.is-current span{color:var(--lime)}
.aside-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:.8125rem;line-height:1.7;color:var(--muted);
}
.index-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.index-row{
  position:relative;
  display:grid;grid-template-columns:46px 1fr 32px;
  gap:14px;align-items:center;
  padding:20px 16px;
  border-bottom:1px solid var(--line);
  color:inherit;
  transition:background .24s var(--ease),padding-left .24s var(--ease);
}
.index-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:var(--lime);transform:scaleY(0);transform-origin:top;
  transition:transform .28s var(--ease);
}
.index-row:hover{background:var(--sand);color:inherit;padding-left:22px}
.index-row:hover::before{transform:scaleY(1)}
.idx-num{
  font-family:var(--font-num);
  font-size:1rem;font-weight:700;color:var(--muted);letter-spacing:.04em;
  transition:color .24s var(--ease);
}
.index-row:hover .idx-num{color:var(--ink)}
.idx-title{font-size:1.0625rem;font-weight:700;margin:0 0 4px;color:var(--text)}
.idx-desc{margin:0;font-size:.9375rem;line-height:1.75;color:var(--muted)}
.idx-arrow{
  font-size:1.05rem;color:var(--muted);text-align:right;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.index-row:hover .idx-arrow{transform:translateX(4px);color:var(--ink)}
@media (max-width:639px){
  .index-row{grid-template-columns:38px 1fr;padding:18px 12px}
  .idx-arrow{display:none}
}

/* ---------- 场景区 ---------- */
.scene-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .scene-grid{grid-template-columns:5fr 7fr;gap:48px}
}
.scene-left{position:relative}
@media (min-width:1024px){
  .scene-left{position:sticky;top:112px;align-self:start}
}
.scene-figure{
  margin-top:24px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid #D8D1C0;background:var(--card);
  box-shadow:var(--sh-1);
}
.scene-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-figure figcaption{
  padding:12px 16px;font-size:.8125rem;color:var(--muted);
  border-top:1px solid var(--line);background:var(--card-warm);
}
.scene-list{display:grid;gap:0;border-top:1px solid #D8D1C0}
.scene-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;
  padding:26px 4px;border-bottom:1px solid #D8D1C0;
  transition:background .24s var(--ease);
}
.scene-item:hover{background:rgba(251,250,246,.7)}
.scene-k{
  font-family:var(--font-num);
  font-size:1.125rem;font-weight:700;color:#7A8C84;letter-spacing:.04em;
}
.scene-item:hover .scene-k{color:var(--ink)}
.scene-h{font-size:1.0625rem;font-weight:700;margin:0 0 8px}
.scene-p{margin:0;font-size:.96875rem;line-height:1.8;color:var(--muted)}

/* ---------- 流程区 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr);gap:22px}}
.step-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFC8B8}
.step-num{
  font-family:var(--font-num);
  font-size:1.75rem;font-weight:800;color:var(--lime);
  line-height:1;display:block;margin-bottom:14px;
  -webkit-text-stroke:.5px #8FB835;
}
.step-h{font-size:1.0625rem;font-weight:700;margin:0 0 8px}
.step-p{margin:0;font-size:.9375rem;line-height:1.8;color:var(--muted)}

/* ---------- 数据带 ---------- */
.metrics{
  position:relative;overflow:hidden;
  background-color:var(--ink);
  background-image:linear-gradient(rgba(11,31,26,.93),rgba(11,31,26,.93)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  padding:clamp(48px,6vw,82px) 0;
  color:var(--reverse);
}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 20px}
@media (min-width:900px){.metric-grid{grid-template-columns:repeat(4,1fr);gap:28px}}
.metric-num{
  font-family:var(--font-num);
  font-size:clamp(2rem,4vw,2.9rem);font-weight:800;line-height:1;
  color:var(--lime);letter-spacing:-.02em;
}
.metric-num small{font-size:.9375rem;font-weight:700;color:var(--lime);margin-left:4px;letter-spacing:0}
.metric-label{
  margin:12px 0 0;font-size:.875rem;line-height:1.7;
  color:rgba(243,241,234,.72);
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
@media (min-width:1024px){
  .faq-layout{grid-template-columns:340px 1fr;gap:48px}
  .faq-aside{position:sticky;top:112px}
}
.faq-aside .section-lead{max-width:34ch}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:20px 4px;cursor:pointer;
  font-size:1.0625rem;font-weight:600;color:var(--text);
  list-style:none;
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink-deep)}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  font-family:var(--font-num);
  font-size:1.25rem;line-height:1;color:var(--muted);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.faq-item[open] summary::after{content:"−";color:var(--ink)}
.faq-item[open] summary{color:var(--ink)}
.faq-body{
  margin:0 0 22px;padding:2px 0 2px 16px;
  border-left:2px solid var(--lime);
  font-size:.96875rem;line-height:1.85;color:var(--muted);
  max-width:66ch;
}

/* ---------- CTA 面板 ---------- */
.cta-section{padding:0 0 clamp(60px,7vw,96px)}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);
  border-radius:var(--r-xl);
  padding:clamp(32px,4.6vw,64px);
  display:grid;grid-template-columns:1fr;gap:26px;
  align-items:center;
}
@media (min-width:900px){
  .cta-card{grid-template-columns:1fr auto;gap:40px}
}
.cta-card::before{
  content:"";position:absolute;right:-60px;top:-60px;
  width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(200,244,92,.28);
}
.cta-card::after{
  content:"";position:absolute;right:24px;bottom:-80px;
  width:180px;height:180px;border-radius:50%;
  border:1px solid rgba(243,241,234,.12);
}
.cta-copy{position:relative;z-index:2}
.cta-title{
  color:var(--reverse);
  font-size:clamp(1.5rem,2.6vw,2.15rem);
  font-weight:700;letter-spacing:-.018em;line-height:1.25;
  margin:0;max-width:22ch;
}
.cta-text{
  margin:14px 0 0;color:rgba(243,241,234,.74);
  font-size:.96875rem;line-height:1.8;max-width:48ch;
}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-foot{
  background:var(--ink-deep);color:#C9D3CE;
  padding:clamp(48px,6vw,76px) 0 0;
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.foot-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.site-foot .brand{color:var(--reverse)}
.site-foot .brand-mark{background:var(--reverse)}
.site-foot .brand-mark::after{background:var(--lime)}
.site-foot .brand-sub{color:#93A69E}
.foot-desc{margin:16px 0 0;font-size:.9375rem;line-height:1.85;color:#93A69E;max-width:34ch}
.site-foot h3{
  font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--reverse);margin:0 0 16px;
}
.site-foot ul{display:grid;gap:10px}
.site-foot ul a{color:#A9B7B1;font-size:.9375rem}
.site-foot ul a:hover{color:var(--lime);text-decoration:underline;text-underline-offset:4px}
.foot-col p{font-size:.9375rem;line-height:1.9;color:#A9B7B1;margin:0}
.foot-bottom{
  border-top:1px solid rgba(243,241,234,.14);
  margin-top:clamp(32px,4vw,48px);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;
  font-size:.8125rem;color:#7E8F88;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--lime);color:#0F2A23;
  font-size:.9375rem;font-weight:700;
  box-shadow:0 16px 38px -16px rgba(16,32,28,.55);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .24s var(--ease);
}
.float-cta:hover{background:var(--lime-deep);color:var(--ink-deep)}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta .dot{width:7px;height:7px;border-radius:50%;background:#0F2A23;display:inline-block}
@media (max-width:639px){
  .float-cta{
    left:12px;right:12px;bottom:0;
    height:auto;padding:15px 18px;
    padding-bottom:calc(15px + env(safe-area-inset-bottom));
    border-radius:14px 14px 0 0;justify-content:center;
  }
}

/* ---------- 滚动揭示 ---------- */
.has-reveal .reveal{
  opacity:0;transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.has-reveal .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .has-reveal .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* roulang page: category2 */
:root{
  --ink:#0F2A23;
  --ink-deep:#0B1F1A;
  --lime:#C8F45C;
  --lime-deep:#B9E648;
  --sand:#E9E3D6;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --card-soft:#FBFAF6;
  --text:#14201C;
  --muted:#55635D;
  --on-dark:#F3F1EA;
  --line:#E2DDD1;
  --radius-lg:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,28,.06);
  --shadow-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --wrap:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;}
a:hover,a:focus{color:var(--ink-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:var(--lime);color:var(--ink-deep);}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){.wrap{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.wrap{padding-left:48px;padding-right:48px;}}
@media (min-width:1440px){.wrap{max-width:1280px;}}

/* ===== 品牌标记 ===== */
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--ink);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:auto 6px 6px auto;
  width:9px;height:9px;border-radius:3px;background:var(--lime);
}
.brand-text{
  font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;color:var(--text);
  line-height:1.1;display:flex;align-items:baseline;gap:6px;
}
.brand-sub{
  font-size:.6875rem;font-weight:500;letter-spacing:.14em;color:var(--muted);
}

/* ===== 顶部导航 ===== */
.site-head{
  position:sticky;top:0;z-index:60;
  padding:10px 0 0;
  background:linear-gradient(180deg,rgba(247,245,240,.96),rgba(247,245,240,.72) 70%,rgba(247,245,240,0));
}
.head-shell{
  position:relative;
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  backdrop-filter:blur(10px);
  transition:padding .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-head.is-scrolled .head-shell{
  padding:7px 14px;
  border-color:#D5CFC0;
  box-shadow:0 8px 24px -16px rgba(16,32,28,.4);
}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-card{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;
  border-radius:10px;
  font-size:.9375rem;font-weight:500;color:var(--muted);
  background:transparent;border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  white-space:nowrap;
}
.nav-card:hover,.nav-card:focus-visible{
  background:var(--sand);color:var(--ink-deep);border-color:#DDD6C6;
}
.nav-card.is-active{
  background:var(--ink);color:var(--on-dark);border-color:var(--ink);
}
.nav-card.is-active:hover{background:var(--ink-deep);color:#fff;}
.head-cta{
  margin-left:6px;
  flex:0 0 auto;
}
.nav-toggle{
  display:none;
  margin-left:auto;
  align-items:center;justify-content:center;
  min-height:44px;padding:0 16px;
  border-radius:10px;border:1px solid var(--line);
  background:var(--card-soft);color:var(--ink);
  font-size:.9375rem;font-weight:600;cursor:pointer;
}
.nav-toggle:hover{background:var(--sand);}
.scroll-progress{
  height:2px;width:100%;
  background:transparent;margin-top:6px;
  border-radius:2px;overflow:hidden;
}
.scroll-progress span{
  display:block;height:100%;width:0;background:var(--lime);
  transition:width .12s linear;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:.9375rem;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink-deep);border-color:var(--lime);}
.btn-primary:hover,.btn-primary:focus-visible{background:#B4E744;border-color:#B4E744;color:var(--ink-deep);}
.btn-primary .arrow{transition:transform .25s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(3px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(15,42,35,.35);}
.btn-ghost:hover,.btn-ghost:focus-visible{background:var(--ink);color:var(--on-dark);border-color:var(--ink);}
.btn-ghost .arrow{transition:transform .25s var(--ease);}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-on-dark{background:var(--lime);color:var(--ink-deep);border-color:var(--lime);}
.btn-on-dark:hover{background:#B4E744;color:var(--ink-deep);}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:rgba(200,244,92,.22);
  color:var(--ink-deep);
  font-size:.75rem;font-weight:600;letter-spacing:.06em;
  line-height:1.6;
}
.badge-sand{background:var(--sand);color:var(--ink-deep);}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--muted);}
.eyebrow{
  display:inline-block;
  font-size:.75rem;font-weight:600;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;
  font-family:"Inter","Noto Sans SC",sans-serif;
}

/* ===== 页面横幅 ===== */
.page-hero{
  position:relative;
  margin-top:14px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:280px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(120deg,rgba(15,42,35,.90) 12%,rgba(15,42,35,.62) 62%,rgba(15,42,35,.42)),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:var(--on-dark);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:4px 4px;pointer-events:none;opacity:.55;
}
.hero-inner{
  position:relative;z-index:2;
  padding:clamp(32px,5vw,56px) clamp(22px,4vw,48px);
  max-width:820px;
}
.hero-inner .badge{background:rgba(200,244,92,.18);color:var(--lime);}
.page-hero h1{
  margin-top:16px;
  font-size:clamp(1.9rem,4.6vw,3.1rem);
  line-height:1.14;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.hero-lead{
  margin-top:14px;
  font-size:clamp(.95rem,1.4vw,1.0625rem);
  line-height:1.8;
  color:rgba(243,241,234,.86);
  max-width:46ch;
}
.hero-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0 0;
  font-size:.8125rem;color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#C6C0B2;}

/* ===== 通用分区 ===== */
.section{padding:clamp(56px,7vw,104px) 0;}
.section-tight{padding:clamp(40px,5vw,72px) 0;}
.section-head{max-width:720px;}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.2rem);
  font-weight:800;letter-spacing:-.015em;line-height:1.3;
  margin-top:12px;
}
.section-head p{
  margin-top:14px;color:var(--muted);font-size:1rem;line-height:1.85;max-width:60ch;
}

/* ===== 画廊 ===== */
.gallery{margin-top:clamp(28px,4vw,52px);}
.g-col{padding-left:14px;padding-right:14px;}
.g-col + .g-col{margin-top:0;}
@media (min-width:640px){
  .g-col--offset{padding-top:56px;}
}
.g-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  margin-bottom:28px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.g-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:#D8D2C3;
}
.g-media{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--sand);
}
.g-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.g-card:hover .g-media img{transform:scale(1.03);}
.g-media .g-tag{
  position:absolute;left:14px;top:14px;
  background:rgba(15,42,35,.86);
  color:var(--on-dark);
  font-size:.75rem;font-weight:600;letter-spacing:.08em;
  padding:5px 12px;border-radius:var(--radius-pill);
  backdrop-filter:blur(4px);
}
.g-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;}
.g-body h3{
  font-size:1.0625rem;font-weight:700;line-height:1.55;letter-spacing:-.005em;
}
.g-body p{color:var(--muted);font-size:.9375rem;line-height:1.8;}
.g-link{
  margin-top:4px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:.875rem;font-weight:600;color:var(--ink);
}
.g-link .arrow{transition:transform .25s var(--ease);}
.g-card:hover .g-link .arrow{transform:translateX(3px);}

/* ===== 步骤 ===== */
.step-list{margin-top:clamp(26px,4vw,44px);}
.step{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:20px;
  padding:26px 0;
  border-top:1px solid var(--line);
  transition:background .25s var(--ease);
}
.step:last-child{border-bottom:1px solid var(--line);}
.step-num{
  font-family:"Inter","Noto Sans SC",sans-serif;
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:700;color:var(--ink);line-height:1;
  letter-spacing:-.02em;
  padding-top:4px;
  min-width:56px;
}
.step h3{font-size:1.0625rem;font-weight:700;line-height:1.6;}
.step p{margin-top:6px;color:var(--muted);font-size:.9375rem;line-height:1.8;max-width:60ch;}
.step:hover .step-num{color:#8AAE2A;}

/* ===== 指标带 ===== */
.metrics{
  background:var(--ink);
  color:var(--on-dark);
  border-radius:var(--radius-lg);
  padding:clamp(30px,4.5vw,50px);
  position:relative;overflow:hidden;
}
.metrics::after{
  content:"";position:absolute;right:-60px;top:-60px;
  width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(200,244,92,.22);
}
.metric{padding:14px 0;}
.metric-num{
  font-family:"Inter","Noto Sans SC",sans-serif;
  font-size:clamp(1.8rem,3.4vw,2.6rem);
  font-weight:700;color:var(--lime);line-height:1.1;letter-spacing:-.02em;
}
.metric-num small{font-size:.5em;font-weight:600;margin-left:2px;}
.metric-label{
  margin-top:8px;font-size:.875rem;color:rgba(243,241,234,.72);line-height:1.7;
}
.metrics .grid-x{margin-top:14px;}
@media (min-width:1024px){
  .metric + .metric{border-left:1px solid rgba(243,241,234,.16);padding-left:26px;}
}

/* ===== FAQ ===== */
.faq-wrap{margin-top:clamp(24px,3.5vw,40px);}
.faq-item{
  border-top:1px solid var(--line);
  padding:2px 0;
}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 4px 20px 0;
  font-size:1rem;font-weight:600;line-height:1.7;
  color:var(--text);
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-family:"Inter",sans-serif;
  font-size:1.25rem;font-weight:500;line-height:1.4;
  color:var(--muted);
  transition:color .22s var(--ease);
}
.faq-item[open] summary::after{content:"−";color:var(--ink);}
.faq-item[open] summary{padding-left:14px;color:var(--ink-deep);position:relative;}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;
  background:var(--lime);border-radius:2px;
}
.faq-item summary:hover{color:var(--ink-deep);}
.faq-answer{
  padding:0 4px 22px 14px;
  color:var(--muted);font-size:.9375rem;line-height:1.9;max-width:66ch;
}

/* ===== CTA 通栏 ===== */
.cta-band{
  background:var(--ink);
  border-radius:var(--radius-lg);
  padding:clamp(30px,4.6vw,54px);
  color:var(--on-dark);
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
  align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-70px;
  width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(200,244,92,.2);
}
.cta-band h2{
  font-size:clamp(1.35rem,2.4vw,2rem);
  font-weight:800;line-height:1.35;letter-spacing:-.015em;color:#fff;
}
.cta-band p{
  margin-top:12px;color:rgba(243,241,234,.78);font-size:.9375rem;line-height:1.85;max-width:52ch;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:900px){
  .cta-band{grid-template-columns:1.5fr 1fr;}
  .cta-actions{justify-content:flex-end;}
}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;
  right:28px;bottom:28px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:var(--radius-pill);
  background:var(--lime);color:var(--ink-deep);
  font-weight:700;font-size:.9375rem;
  box-shadow:0 14px 30px -12px rgba(15,42,35,.5);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .25s var(--ease);
}
.float-cta.is-on{opacity:1;pointer-events:auto;transform:none;}
.float-cta:hover{background:#B4E744;color:var(--ink-deep);}
.float-cta .arrow{transition:transform .25s var(--ease);}
.float-cta:hover .arrow{transform:translateX(3px);}

/* ===== 页脚 ===== */
.site-foot{
  background:var(--ink-deep);
  color:rgba(243,241,234,.78);
  padding:clamp(48px,6vw,80px) 0 26px;
  margin-top:clamp(48px,6vw,90px);
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(243,241,234,.14);
}
@media (min-width:640px){
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (min-width:1024px){
  .foot-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;}
}
.site-foot .brand-text{color:#fff;}
.site-foot .brand-mark{background:#fff;}
.site-foot .brand-mark::after{background:var(--lime);}
.site-foot .brand-sub{color:rgba(243,241,234,.6);}
.foot-desc{
  margin-top:16px;font-size:.875rem;line-height:1.9;
  color:rgba(243,241,234,.66);max-width:34ch;
}
.foot-col h3{
  font-size:.8125rem;font-weight:700;letter-spacing:.14em;
  color:rgba(243,241,234,.55);margin-bottom:16px;
  text-transform:uppercase;
}
.foot-col ul li{margin-bottom:10px;}
.foot-col a,.foot-col p{
  font-size:.875rem;color:rgba(243,241,234,.78);line-height:1.9;
}
.foot-col a{transition:color .22s var(--ease),border-color .22s var(--ease);border-bottom:1px solid transparent;padding-bottom:1px;}
.foot-col a:hover,.foot-col a:focus-visible{color:var(--lime);border-bottom-color:var(--lime);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:.8125rem;color:rgba(243,241,234,.5);
}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{
  opacity:1;transform:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .head-nav{
    display:none;
    position:absolute;
    top:calc(100% + 10px);left:0;right:0;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-2);
    padding:12px;
    grid-template-columns:1fr 1fr;
    gap:8px;
    margin-left:0;
  }
  .head-nav.is-open{display:grid;}
  .head-nav .nav-card{
    justify-content:center;background:var(--card-soft);border-color:var(--line);
    font-size:.9375rem;
  }
  .head-nav .nav-card.is-active{background:var(--ink);color:var(--on-dark);border-color:var(--ink);}
  .head-cta{display:none;}
  .head-shell{flex-wrap:wrap;}
}
@media (max-width:639px){
  body{padding-bottom:104px;}
  .page-hero{min-height:240px;margin-top:10px;}
  .float-cta{
    left:0;right:0;bottom:0;
    justify-content:center;
    border-radius:14px 14px 0 0;
    padding-bottom:calc(0px + env(safe-area-inset-bottom));
    padding-top:0;
    min-height:56px;
    box-shadow:0 -8px 24px -14px rgba(15,42,35,.6);
  }
  .g-body{padding:18px 18px 20px;}
  .step{grid-template-columns:1fr;gap:8px;}
  .step-num{min-width:0;font-size:1.1rem;}
  .cta-actions .btn{width:100%;}
  .foot-bottom{flex-direction:column;gap:6px;}
}

/* roulang page: category3 */
:root{
  --ink:#0F2A23;
  --ink-deep:#0B1F1A;
  --lime:#C8F45C;
  --lime-deep:#B7E24A;
  --sand:#E9E3D6;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --card-soft:#FBFAF6;
  --text:#14201C;
  --muted:#55635D;
  --line:#E2DDD1;
  --radius-lg:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,28,.06);
  --shadow-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font-cn:"Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"IBM Plex Sans",Inter,system-ui,sans-serif;
  --sec-pad:clamp(72px,9vw,140px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:88px;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--text);text-decoration:none;transition:color .24s var(--ease),border-color .24s var(--ease);}
a:hover{color:var(--ink);}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:640px){.wrap{padding:0 32px;}}
@media (min-width:1440px){.wrap{max-width:1280px;padding:0 48px;}}
.eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-size:.75rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:16px;
}
.eyebrow--light{color:rgba(243,241,234,.72);}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-head.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px -18px rgba(16,32,28,.4);
  background:rgba(247,245,240,.97);
}
.head-progress{height:2px;background:transparent;}
.head-progress i{display:block;height:2px;width:0;background:var(--lime);transition:width .1s linear;}
.head-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  padding-top:12px;
  padding-bottom:12px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:linear-gradient(140deg,var(--ink) 0%,var(--ink-deep) 60%);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:7px 7px auto auto;
  width:9px;height:9px;border-radius:2px;background:var(--lime);
}
.brand-text{
  font-size:1.0625rem;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  display:inline-flex;align-items:baseline;gap:6px;white-space:nowrap;
}
.brand-sub{font-size:.6875rem;font-weight:500;letter-spacing:.14em;color:var(--muted);}
.head-nav{
  display:none;
  flex:1 1 auto;
  gap:8px;
  align-items:center;
  justify-content:center;
  flex-wrap:nowrap;
}
.nav-card{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;
  padding:0 16px;
  font-size:.875rem;
  font-weight:500;
  color:var(--muted);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);
  white-space:nowrap;
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.nav-card:hover{color:var(--ink);border-color:#CFC9BA;transform:translateY(-2px);}
.nav-card.is-active{background:var(--ink);border-color:var(--ink);color:#F3F1EA;}
.nav-card.is-active:hover{color:#F3F1EA;}
.head-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);
  color:var(--ink);
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg);}
.mobile-panel{
  display:none;
  padding:16px 20px 22px;
  border-top:1px solid var(--line);
  background:rgba(247,245,240,.98);
}
.mobile-panel.is-open{display:block;}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-grid .nav-card{width:100%;justify-content:flex-start;padding:0 14px;}
.mobile-panel .btn{width:100%;margin-top:12px;}

@media (min-width:1024px){
  .head-nav{display:flex;}
  .nav-toggle{display:none;}
  .head-actions .btn{display:inline-flex;}
}
@media (max-width:1023px){
  .head-actions .btn{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;
  padding:0 26px;
  font-size:.9375rem;font-weight:600;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-sm{min-height:44px;padding:0 20px;font-size:.875rem;}
.btn-primary{background:var(--lime);color:var(--ink-deep);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink-deep);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#F3F1EA;transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#F3F1EA;border-color:rgba(243,241,234,.4);}
.btn-ghost-light:hover{background:rgba(243,241,234,.12);color:#fff;border-color:#F3F1EA;}
.btn .arw{transition:transform .24s var(--ease);}
.btn:hover .arw{transform:translateX(3px);}

/* ---------- Hero 矮横幅 ---------- */
.page-hero{
  position:relative;
  min-height:clamp(280px,32vw,360px);
  display:flex;
  align-items:flex-end;
  background-image:linear-gradient(100deg,rgba(15,42,35,.90) 0%,rgba(15,42,35,.72) 55%,rgba(15,42,35,.5) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  color:#F3F1EA;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:3px 3px;opacity:.5;pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:2;padding-top:56px;padding-bottom:44px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:rgba(243,241,234,.7);margin-bottom:20px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:rgba(243,241,234,.35);}
.crumb a{color:rgba(243,241,234,.78);}
.crumb a:hover{color:var(--lime);}
.crumb li[aria-current]{color:var(--lime);}
.page-hero h1{
  color:#F3F1EA;
  font-size:clamp(1.85rem,4.4vw,3.1rem);
  line-height:1.12;
  letter-spacing:-.02em;
  font-weight:800;
  max-width:22ch;
}
.hero-lead{
  margin-top:18px;
  max-width:52ch;
  font-size:clamp(.95rem,1.4vw,1.0625rem);
  line-height:1.8;
  color:rgba(243,241,234,.82);
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  min-height:32px;padding:0 14px;
  font-size:.75rem;letter-spacing:.12em;
  border-radius:var(--radius-pill);
  background:rgba(200,244,92,.14);
  color:var(--lime);
  border:1px solid rgba(200,244,92,.32);
  margin-bottom:18px;
  font-family:var(--font-num);
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}

/* ---------- 通用分区 ---------- */
.sec{padding:var(--sec-pad) 0;}
.sec--tight{padding:clamp(56px,6vw,88px) 0;}
.sec-sand{background:var(--sand);}
.sec-dark{background:var(--ink);color:#F3F1EA;}
.sec-white{background:var(--card-soft);}
.reading{max-width:880px;margin:0 auto;}
.sec-head{margin-bottom:clamp(32px,4vw,52px);}
.sec-head h2{
  font-size:clamp(1.6rem,3vw,2.4rem);
  font-weight:700;
  letter-spacing:-.015em;
  line-height:1.2;
}
.sec-head p{margin-top:14px;max-width:62ch;color:var(--muted);font-size:1.0625rem;line-height:1.8;}
.sec-dark .sec-head h2{color:#F3F1EA;}
.sec-dark .sec-head p{color:rgba(243,241,234,.72);}

/* ---------- 流程步骤 ---------- */
.steps{border-top:1px solid var(--line);}
.step{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
  padding:clamp(26px,3.4vw,40px) 0;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background .3s var(--ease);
}
.step::before{
  content:"";position:absolute;left:-20px;top:0;bottom:0;width:2px;
  background:var(--lime);
  transform:scaleY(0);transform-origin:top;
  transition:transform .34s var(--ease);
}
.step:hover::before{transform:scaleY(1);}
.step-num{
  font-family:var(--font-num);
  font-size:clamp(2rem,4vw,2.85rem);
  font-weight:600;
  line-height:1;
  color:var(--ink);
  letter-spacing:-.03em;
}
.step-num small{font-size:.9rem;letter-spacing:.12em;color:var(--muted);display:block;margin-top:6px;font-family:var(--font-num);}
.step-body h3{font-size:clamp(1.1rem,2vw,1.35rem);font-weight:700;margin-bottom:10px;}
.step-body p{color:var(--muted);font-size:1rem;line-height:1.85;max-width:60ch;margin-bottom:14px;}
.step-list{display:grid;gap:8px;}
.step-list li{
  position:relative;
  padding-left:18px;
  font-size:.9375rem;
  color:var(--text);
  line-height:1.75;
}
.step-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:1px;background:var(--lime-deep);
}
@media (min-width:768px){
  .step{grid-template-columns:120px 1fr;gap:32px;}
  .step::before{left:-28px;}
}

/* ---------- 分工卡片 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:22px;}
.duty-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(24px,3vw,36px);
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.duty-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.duty-card h3{
  font-size:1.0625rem;font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.duty-card h3::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--lime);}
.duty-list li{
  padding:13px 0;
  border-top:1px solid var(--line);
  font-size:.9375rem;
  color:var(--text);
  line-height:1.75;
}
.duty-list li:first-child{border-top:0;padding-top:0;}
.duty-list li span{display:block;font-size:.8125rem;color:var(--muted);margin-top:2px;}
@media (min-width:768px){.split{grid-template-columns:1fr 1fr;gap:26px;}}

/* ---------- 数据指标带 ---------- */
.metrics{
  display:grid;grid-template-columns:1fr 1fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow-1);
}
.metric{
  padding:clamp(20px,3vw,32px);
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.metric strong{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(1.7rem,3.4vw,2.3rem);
  font-weight:600;
  color:var(--ink);
  line-height:1.1;
  letter-spacing:-.03em;
}
.metric strong em{font-style:normal;color:var(--ink);}
.metric span{display:block;margin-top:8px;font-size:.875rem;color:var(--muted);line-height:1.6;}
@media (min-width:768px){
  .metrics{grid-template-columns:repeat(4,1fr);}
  .metric{border-bottom:0;}
  .metric:last-child{border-right:0;}
}
@media (max-width:767px){
  .metric:nth-child(2n){border-right:0;}
  .metric:nth-last-child(-n+2){border-bottom:0;}
}

/* ---------- 图文说明 ---------- */
.figure-block{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  margin-top:clamp(36px,5vw,60px);
}
.figure-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--sand);
  box-shadow:var(--shadow-1);
}
.figure-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
.figure-media:hover img{transform:scale(1.03);}
.figure-text h3{font-size:clamp(1.15rem,2.2vw,1.45rem);margin-bottom:12px;}
.figure-text p{color:var(--muted);font-size:1rem;line-height:1.85;margin-bottom:14px;}
@media (min-width:768px){.figure-block{grid-template-columns:1fr 1fr;gap:40px;}}

/* ---------- FAQ ---------- */
.faq-acc{border-top:1px solid var(--line);background:transparent;}
.faq-acc .accordion-item{border-bottom:1px solid var(--line);background:transparent;}
.faq-acc .accordion-title{
  position:relative;
  display:block;
  padding:22px 46px 22px 20px;
  font-size:1rem;
  font-weight:600;
  color:var(--ink);
  background:transparent;
  border:0;
  line-height:1.65;
  transition:color .24s var(--ease),background .24s var(--ease);
}
.faq-acc .accordion-title::before{
  content:"+";
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-family:var(--font-num);
  font-size:1.25rem;color:var(--muted);
  background:none;width:auto;height:auto;line-height:1;
  margin:0;
}
.faq-acc .accordion-title::after{content:none;display:none;}
.faq-acc .accordion-item.is-active .accordion-title::before{content:"−";color:var(--ink);}
.faq-acc .accordion-title:hover{color:var(--ink);background:rgba(233,227,214,.42);}
.faq-acc .accordion-item.is-active > .accordion-title{background:rgba(233,227,214,.5);}
.faq-acc .accordion-content{
  padding:0 46px 24px 20px;
  color:var(--muted);
  font-size:.9375rem;
  line-height:1.9;
  border:0;
  background:rgba(233,227,214,.5);
}
.faq-acc .accordion-item.is-active{border-left:2px solid var(--lime);}
.faq-acc .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA 面板 ---------- */
.cta-panel{
  position:relative;
  background:var(--ink);
  color:#F3F1EA;
  border-radius:var(--radius-lg);
  padding:clamp(36px,5.5vw,72px);
  overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border:1px solid rgba(200,244,92,.28);border-radius:50%;
  pointer-events:none;
}
.cta-panel::after{
  content:"";position:absolute;right:40px;bottom:-90px;width:190px;height:190px;
  border:1px solid rgba(243,241,234,.14);border-radius:50%;
  pointer-events:none;
}
.cta-panel h2{
  color:#F3F1EA;
  font-size:clamp(1.5rem,3.4vw,2.3rem);
  line-height:1.2;
  max-width:18ch;
  position:relative;z-index:2;
}
.cta-panel p{
  margin-top:16px;
  max-width:48ch;
  color:rgba(243,241,234,.76);
  font-size:1rem;
  line-height:1.85;
  position:relative;z-index:2;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;position:relative;z-index:2;}
.cta-meta{
  margin-top:26px;padding-top:20px;
  border-top:1px solid rgba(243,241,234,.16);
  font-size:.8125rem;
  color:rgba(243,241,234,.6);
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:8px 24px;
}

/* ---------- 返回入口 ---------- */
.back-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
}
.back-strip p{margin:0;font-size:.9375rem;color:var(--muted);}
.back-links{display:flex;flex-wrap:wrap;gap:10px;}
.back-link{
  display:inline-flex;align-items:center;gap:6px;
  min-height:44px;padding:0 18px;
  font-size:.875rem;font-weight:600;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  color:var(--ink);
  background:var(--card-soft);
  transition:border-color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.back-link:hover{border-color:var(--ink);background:var(--sand);transform:translateY(-2px);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:var(--radius-pill);
  background:var(--lime);color:var(--ink-deep);
  font-size:.9375rem;font-weight:700;
  box-shadow:0 14px 32px -12px rgba(16,32,28,.4);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background .24s var(--ease);
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--lime-deep);color:var(--ink-deep);}
@media (max-width:639px){
  .float-cta{
    right:0;left:0;bottom:0;
    justify-content:center;border-radius:0;
    padding:14px 20px calc(14px + env(safe-area-inset-bottom));
    font-size:.9375rem;
  }
  .float-cta.is-show{transform:none;}
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink-deep);color:rgba(243,241,234,.78);padding:clamp(56px,7vw,88px) 0 28px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:36px;}
.foot-brand .brand-text{color:#F3F1EA;}
.foot-brand .brand-sub{color:rgba(243,241,234,.55);}
.site-foot .brand-mark{background:linear-gradient(140deg,#173A31,#0B1F1A);}
.foot-desc{margin-top:16px;font-size:.9375rem;line-height:1.85;color:rgba(243,241,234,.6);max-width:34ch;}
.foot-col h3{font-size:.8125rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(243,241,234,.55);font-weight:600;margin-bottom:16px;font-family:var(--font-num);}
.foot-col ul{display:grid;gap:10px;}
.foot-col li a{font-size:.9375rem;color:rgba(243,241,234,.8);border-bottom:1px solid transparent;padding-bottom:2px;}
.foot-col li a:hover{color:var(--lime);border-bottom-color:var(--lime);}
.foot-col p{font-size:.9375rem;line-height:2;color:rgba(243,241,234,.7);margin:0;}
.foot-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(243,241,234,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:.8125rem;color:rgba(243,241,234,.5);
}
@media (min-width:768px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#14201C;
  --ink-2:#55635D;
  --green:#0F2A23;
  --green-dark:#0B1F1A;
  --lime:#C8F45C;
  --sand:#E9E3D6;
  --bg:#F7F5F0;
  --card:#FBFAF6;
  --white:#FFFFFF;
  --line:#E2DDD1;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,32,28,.06);
  --shadow-2:0 14px 36px -14px rgba(16,32,28,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --space:clamp(72px,9vw,132px);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding-bottom:88px;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .24s var(--ease);}
a:hover,a:focus{color:var(--green);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
h1{font-size:clamp(2.1rem,4.2vw,3.6rem);line-height:1.12;font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(1.6rem,2.6vw,2.35rem);line-height:1.28;font-weight:700;letter-spacing:-.015em;}
h3{font-size:1.05rem;line-height:1.5;font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}

/* Foundation 默认样式覆写 */
a:not(.btn):not(.nav-card):not(.brand){color:var(--ink);}
a:hover:not(.btn):not(.brand){color:var(--green);}
.button,button.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;margin:0;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:.95rem;font-weight:600;letter-spacing:.01em;line-height:1;
  background:var(--lime);color:var(--green-dark);
  box-shadow:none;transition:all .24s var(--ease);cursor:pointer;
}
.button:hover,button.btn:hover{background:#b9e64a;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.button:active,button.btn:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:rgba(20,32,28,.28);color:var(--ink);}
.btn-ghost:hover{background:var(--green);border-color:var(--green);color:#F3F1EA;}
.btn-ghost-light{background:transparent;border-color:rgba(243,241,234,.42);color:#F3F1EA;}
.btn-ghost-light:hover{background:var(--lime);border-color:var(--lime);color:var(--green-dark);}
.btn .fa-arrow-right{font-size:.8em;transition:transform .24s var(--ease);}
.btn:hover .fa-arrow-right{transform:translateX(3px);}

.wrap{
  width:100%;max-width:1200px;margin:0 auto;
  padding-left:20px;padding-right:20px;
}
@media (min-width:640px){.wrap{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.wrap{padding-left:48px;padding-right:48px;}}
@media (min-width:1440px){.wrap{max-width:1280px;}}

.label-en{
  display:inline-block;font-family:"IBM Plex Sans",Inter,system-ui,sans-serif;
  font-size:.75rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-2);
}

/* ============ 顶部导航（卡片化面板） ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  padding:10px 0 6px;
  background:linear-gradient(180deg,rgba(247,245,240,.96),rgba(247,245,240,.86));
  backdrop-filter:blur(10px);
  transition:padding .3s var(--ease);
}
.head-card{
  display:flex;align-items:center;gap:16px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:10px 12px 10px 16px;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-head.is-tight{padding-top:6px;}
.site-head.is-tight .head-card{border-color:#CFC7B6;box-shadow:var(--shadow-2);}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;
  background:var(--green);
  position:relative;
  box-shadow:inset 0 0 0 3px var(--lime000);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;
  background:var(--lime);
}
.brand-text{
  font-size:1.02rem;font-weight:800;letter-spacing:.02em;color:var(--ink);
  display:inline-flex;align-items:baseline;gap:6px;line-height:1;
}
.brand-sub{font-size:.7rem;font-weight:600;letter-spacing:.14em;color:var(--ink-2);}

.head-nav{
  display:flex;align-items:center;gap:6px;margin-left:auto;
  flex-wrap:nowrap;
}
.nav-card{
  display:inline-flex;align-items:center;
  min-height:44px;padding:0 18px;
  border-radius:var(--radius-md);
  border:1px solid transparent;
  font-size:.92rem;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:all .24s var(--ease);
}
.nav-card:hover{background:var(--white);border-color:var(--line);color:var(--ink);transform:translateY(-1px);}
.nav-card.is-active{
  background:var(--green);border-color:var(--green);color:#F3F1EA;font-weight:600;
}
.nav-card.is-active:hover{background:var(--green-dark);color:#FFFFFF;}
.head-cta{flex:0 0 auto;min-height:44px;padding:0 22px;font-size:.9rem;}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--radius-md);
  border:1px solid var(--line);background:var(--white);color:var(--ink);
  cursor:pointer;margin-left:auto;
}
.nav-toggle i{font-size:1rem;}

@media (max-width:1023px){
  .head-card{flex-wrap:wrap;}
  .nav-toggle{display:inline-flex;}
  .head-cta{display:none;}
  .head-nav{
    display:none;width:100%;margin:8px 0 4px;
    flex-direction:row;flex-wrap:wrap;gap:8px;
    padding-top:12px;border-top:1px solid var(--line);
  }
  .head-nav.is-open{display:flex;}
  .nav-card{
    flex:1 1 calc(50% - 8px);
    justify-content:center;min-height:46px;
    background:var(--white);border-color:var(--line);
    font-size:.9rem;
  }
  .head-nav .head-cta-mobile{
    flex:1 1 100%;min-height:46px;display:inline-flex;align-items:center;justify-content:center;
    border-radius:var(--radius-pill);background:var(--lime);color:var(--green-dark);font-weight:600;
  }
}
@media (min-width:1024px){
  .head-nav .head-cta-mobile{display:none;}
}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-radius:0 0 var(--radius-lg) var(--radius-lg);
  background-image:
    linear-gradient(180deg,rgba(11,31,26,.86),rgba(15,42,35,.92)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:#F3F1EA;
  padding:clamp(48px,7vw,84px) 0 clamp(44px,6vw,72px);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:4px 4px;
  opacity:.6;
}
.page-hero .wrap{position:relative;z-index:2;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.8125rem;color:rgba(243,241,234,.66);margin-bottom:22px;
}
.breadcrumb a{color:rgba(243,241,234,.86);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--lime);}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(200,244,92,.14);
  border:1px solid rgba(200,244,92,.36);
  color:var(--lime);
  font-size:.75rem;font-weight:600;letter-spacing:.12em;
  margin-bottom:20px;
}
.page-hero h1{color:#F3F1EA;max-width:22ch;margin-bottom:18px;}
.page-hero h1 em{font-style:normal;color:var(--lime);}
.hero-lead{
  max-width:44ch;color:rgba(243,241,234,.82);
  font-size:clamp(1rem,1.2vw,1.1rem);line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border-top:1px solid rgba(243,241,234,.16);padding-top:20px;
}
.hero-meta .item{
  padding-right:26px;margin-right:26px;
  border-right:1px solid rgba(243,241,234,.16);
  font-size:.85rem;color:rgba(243,241,234,.72);
}
.hero-meta .item:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-meta .item b{display:block;font-family:"IBM Plex Sans",Inter,sans-serif;font-size:1.5rem;font-weight:700;color:var(--lime);line-height:1.2;}
@media (max-width:639px){
  .hero-meta{flex-direction:column;gap:12px;}
  .hero-meta .item{border-right:0;margin:0;padding:0;}
}

/* ============ 通用板块 ============ */
.section{padding:var(--space) 0;}
.section-sand{background:var(--sand);}
.section-dark{background:var(--green);color:#F3F1EA;}
.section-dark h2,.section-dark h3{color:#F3F1EA;}
.section-dark .label-en{color:rgba(243,241,234,.6);}
.sec-head{max-width:62ch;margin-bottom:clamp(32px,4vw,52px);}
.sec-head h2{margin:10px 0 14px;}
.sec-head p{color:var(--ink-2);font-size:1.0125rem;line-height:1.85;}
.section-dark .sec-head p{color:rgba(243,241,234,.74);}

/* ============ 指标带 ============ */
.stats-band{
  background:var(--green-dark);
  color:#F3F1EA;
  border-radius:var(--radius-lg);
  padding:clamp(28px,3.4vw,44px) clamp(22px,3vw,40px);
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);
}
.stat b{
  display:block;font-family:"IBM Plex Sans",Inter,sans-serif;
  font-size:clamp(1.7rem,2.6vw,2.4rem);font-weight:700;line-height:1.1;color:var(--lime);
}
.stat span{display:block;margin-top:8px;font-size:.85rem;color:rgba(243,241,234,.72);line-height:1.6;}
@media (max-width:767px){
  .stats-band{grid-template-columns:repeat(2,1fr);gap:20px;}
}

/* ============ 问答卡 ============ */
.qa-group{margin-bottom:44px;}
.qa-group:last-child{margin-bottom:0;}
.qa-group-head{
  display:flex;align-items:baseline;gap:12px;
  padding-bottom:12px;margin-bottom:22px;
  border-bottom:1px solid var(--line);
}
.qa-group-head h3{font-size:1.08rem;font-weight:700;}
.qa-group-head .num{
  font-family:"IBM Plex Sans",Inter,sans-serif;
  font-size:.8rem;font-weight:700;letter-spacing:.1em;color:var(--green);
  background:rgba(200,244,92,.3);padding:2px 9px;border-radius:var(--radius-pill);
}
.qa-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
@media (max-width:899px){.qa-grid{grid-template-columns:1fr;}}

.qa-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  overflow:hidden;
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFC7B6;}
.qa-card details{padding:0;}
.qa-card summary{
  display:flex;align-items:flex-start;gap:14px;
  padding:22px 24px;cursor:pointer;list-style:none;
  font-size:1rem;font-weight:600;line-height:1.6;color:var(--ink);
}
.qa-card summary::-webkit-details-marker{display:none;}
.qa-card summary::marker{content:"";}
.qa-toggle{
  flex:0 0 auto;width:22px;height:22px;margin-left:auto;position:relative;margin-top:2px;
}
.qa-toggle::before,.qa-toggle::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--green);
  transform:translate(-50%,-50%);transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.qa-toggle::before{width:12px;height:1.6px;}
.qa-toggle::after{width:1.6px;height:12px;}
.qa-card details[open] .qa-toggle::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.qa-card details[open]{background:var(--white);}
.qa-card details[open] summary{color:var(--green);}
.qa-body{
  padding:0 24px 24px;border-left:2px solid var(--lime);
  margin-left:24px;padding-left:20px;
}
.qa-body p{color:var(--ink-2);font-size:.95rem;line-height:1.85;margin-bottom:12px;}
.qa-body p:first-child{color:var(--ink);font-weight:500;}
.qa-body .qa-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:4px;
  font-size:.75rem;letter-spacing:.06em;color:var(--green);
  background:rgba(200,244,92,.24);border-radius:var(--radius-pill);padding:4px 12px;
}

/* ============ 流程步骤 ============ */
.step-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
@media (max-width:899px){.step-list{grid-template-columns:1fr;}}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step .num{
  font-family:"IBM Plex Sans",Inter,sans-serif;font-size:1.6rem;font-weight:700;
  color:var(--lime);-webkit-text-stroke:1px var(--green);line-height:1;margin-bottom:14px;display:block;
}
.step h3{margin-bottom:8px;}
.step p{color:var(--ink-2);font-size:.93rem;line-height:1.8;margin:0;}

/* ============ 图文推荐 ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,4vw,56px);align-items:center;}
@media (max-width:899px){.split{grid-template-columns:1fr;}}
.figure-card{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:var(--card);box-shadow:var(--shadow-1);
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease);}
.figure-card:hover img{transform:scale(1.03);}
.figure-cap{padding:16px 20px;font-size:.85rem;color:var(--ink-2);border-top:1px solid var(--line);}
.mini-list li{
  display:flex;gap:14px;padding:16px 0;border-top:1px solid var(--line);
  align-items:flex-start;
}
.mini-list li:last-child{border-bottom:1px solid var(--line);}
.mini-list .idx{
  font-family:"IBM Plex Sans",Inter,sans-serif;font-size:.8rem;font-weight:700;
  color:var(--green);letter-spacing:.08em;padding-top:3px;flex:0 0 auto;
}
.mini-list b{display:block;font-size:.98rem;font-weight:600;line-height:1.6;}
.mini-list span.desc{color:var(--ink-2);font-size:.88rem;line-height:1.75;}

/* ============ 联系表单 ============ */
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(26px,3.4vw,44px);box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px;}
@media (max-width:767px){.form-grid{grid-template-columns:1fr;}}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:.85rem;font-weight:600;color:var(--ink);}
.field input,.field textarea,.field select{
  height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--white);color:var(--ink);font-size:.95rem;font-family:inherit;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
  box-shadow:none;margin:0;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(200,244,92,.32);
}
.field .hint{font-size:.78rem;color:var(--ink-2);}
.form-note{margin-top:14px;font-size:.8rem;color:var(--ink-2);}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--green);color:#F3F1EA;
  border-radius:var(--radius-lg);
  padding:clamp(36px,5vw,64px);
  display:grid;grid-template-columns:1.4fr .9fr;gap:32px;align-items:center;
}
@media (max-width:899px){.cta-panel{grid-template-columns:1fr;}}
.cta-panel h2{color:#F3F1EA;margin-bottom:14px;}
.cta-panel p{color:rgba(243,241,234,.76);max-width:46ch;margin:0;}
.cta-panel .actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
@media (max-width:899px){.cta-panel .actions{justify-content:flex-start;}}
.cta-deco{
  position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  border:1px solid rgba(200,244,92,.28);border-radius:50%;pointer-events:none;
}
.cta-deco::after{
  content:"";position:absolute;inset:34px;border:1px solid rgba(200,244,92,.18);border-radius:50%;
}

/* ============ 页脚 ============ */
.site-foot{background:var(--green-dark);color:rgba(243,241,234,.78);padding:clamp(52px,6vw,80px) 0 28px;margin-top:0;}
.site-foot .foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;
  padding-bottom:40px;border-bottom:1px solid rgba(243,241,234,.14);
}
@media (max-width:899px){.site-foot .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}}
@media (max-width:559px){.site-foot .foot-grid{grid-template-columns:1fr;}}
.site-foot .brand-text{color:#F3F1EA;}
.site-foot .brand-sub{color:rgba(243,241,234,.6);}
.site-foot .brand-mark{background:#F3F1EA;}
.site-foot .brand-mark::after{background:var(--green);}
.site-foot .foot-desc{margin-top:16px;font-size:.88rem;line-height:1.85;color:rgba(243,241,234,.66);max-width:34ch;}
.site-foot h3{font-size:.9rem;font-weight:600;color:#F3F1EA;margin-bottom:16px;letter-spacing:.04em;}
.site-foot ul li{margin-bottom:10px;}
.site-foot a{color:rgba(243,241,234,.74);font-size:.88rem;position:relative;}
.site-foot a:hover{color:var(--lime);}
.site-foot a:hover::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:var(--lime);
}
.site-foot .foot-col p{font-size:.86rem;line-height:1.95;color:rgba(243,241,234,.68);margin:0;}
.site-foot .foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:.8rem;color:rgba(243,241,234,.52);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:inline-flex;align-items:center;gap:10px;
  min-height:52px;padding:0 26px;border-radius:var(--radius-pill);
  background:var(--lime);color:var(--green-dark);font-weight:700;font-size:.92rem;
  box-shadow:0 16px 40px -16px rgba(15,42,35,.5);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:all .34s var(--ease);
}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:#b9e64a;color:#fff;transform:translateY(-2px);}
@media (max-width:639px){
  .float-cta{
    left:0;right:0;bottom:0;justify-content:center;border-radius:0;
    padding:14px 20px calc(14px + env(safe-area-inset-bottom));
    min-height:56px;
  }
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}