/* ==========================================================================
   百赛刻赛恩斯 · 官网视觉系统 v2
   设计取向：Apple 式排版驱动 —— 大字、紧行距、大量留白、圆角卡片、
   克制动效；色彩仍为品牌藏青 + 金，但金色只作点睛，不再做装饰线。
   ========================================================================== */

:root{
  /* 中性色（Apple 近白 / 石墨 / 中灰） */
  --ink:#1D1D1F;
  --text:#424245;
  --muted:#6E6E73;
  --muted-2:#86868B;
  --paper:#FBFBFD;
  --paper-2:#F5F5F7;
  --white:#fff;

  /* 品牌色 */
  --navy:#0B2540;
  --navy-2:#123C63;
  --navy-deep:#07131F;
  --blue:#2C6FA3;
  --gold:#B08540;
  --gold-soft:#D3AE74;

  --line:rgba(0,0,0,.10);
  --line-soft:rgba(0,0,0,.06);

  --sans:-apple-system,BlinkMacSystemFont,"SF Pro SC","SF Pro Display","PingFang SC",
         "Helvetica Neue","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --serif:"Songti SC","Noto Serif SC",Georgia,serif;

  --ease:cubic-bezier(.16,1,.3,1);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --wrap:min(1180px,88vw);
  --nav-h:64px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--sans);font-size:17px;line-height:1.72;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.15;letter-spacing:-.018em}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-weight:600;color:var(--ink)}
::selection{background:rgba(44,111,163,.16)}

.wrap{width:var(--wrap);margin-inline:auto}
.serif{font-family:var(--serif);letter-spacing:0}
.eyebrow{
  font-size:12px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted-2);line-height:1.5;
}

/* ---------- 滚动进度 ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--navy),var(--blue));transition:width .1s linear}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;inset:0 0 auto;z-index:100;
  background:rgba(251,251,253,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;
  transition:background .45s var(--ease),border-color .45s var(--ease);
}
.nav.is-stuck{background:rgba(251,251,253,.86);border-bottom-color:var(--line-soft)}
.nav-inner{
  width:min(1280px,92vw);margin-inline:auto;display:flex;align-items:center;gap:32px;
  height:var(--nav-h);transition:height .45s var(--ease);
}
.nav.is-stuck .nav-inner{height:56px}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:30px;width:auto;transition:height .45s var(--ease)}
.nav.is-stuck .brand img{height:26px}
.nav-links{display:flex;gap:30px;margin-left:auto}
.nav-links a{position:relative;font-size:13.5px;color:var(--ink);opacity:.8;white-space:nowrap;transition:opacity .3s,color .3s}
.nav-links a:hover,.nav-links a.active{opacity:1;color:var(--navy)}
.nav-cta{display:flex;align-items:center;gap:12px;flex:none}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:transparent;-webkit-appearance:none;appearance:none;cursor:pointer;position:relative}
.burger span{position:absolute;left:11px;width:18px;height:1.5px;background:var(--ink);transition:.3s var(--ease)}
.burger span:nth-child(1){top:15px}
.burger span:nth-child(2){top:19.5px}
.burger span:nth-child(3){top:24px}
body.menu-open .burger span:nth-child(1){top:19.5px;transform:rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){top:19.5px;transform:rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;font-size:15px;letter-spacing:0;
  border:1px solid transparent;border-radius:980px;cursor:pointer;
  transition:transform .35s var(--ease),background .3s,color .3s,border-color .3s,box-shadow .35s;
}
.btn svg{width:15px;height:15px;flex:none;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:#123A5C;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(0,0,0,.14);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(0,0,0,.3);background:rgba(0,0,0,.03)}
.btn-sm{height:34px;padding:0 17px;font-size:13.5px}
button.btn{font-family:inherit;background:transparent;border:1px solid transparent;border-radius:980px;-webkit-appearance:none;appearance:none}
button.btn.btn-ghost{border-color:rgba(0,0,0,.14)}
.contact button.btn.btn-ghost{border-color:rgba(255,255,255,.26)}

/* 复制微信号 */
.copy-btn{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;margin-left:10px;vertical-align:middle;
  font-family:inherit;font-size:11.5px;letter-spacing:.04em;color:var(--gold-soft);
  background:transparent;cursor:pointer;border:1px solid rgba(211,174,116,.4);border-radius:980px;
  transition:background .3s,border-color .3s,color .3s;
}
.copy-btn:hover{background:rgba(211,174,116,.14);border-color:var(--gold-soft)}
.copy-btn.is-done{color:#0B2540;background:var(--gold-soft);border-color:var(--gold-soft)}
button.btn.is-done{color:var(--navy)}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding-top:var(--nav-h);overflow:hidden;text-align:center}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(58% 42% at 50% 0%,rgba(44,111,163,.09),transparent 72%);
}
.hero-grid{position:relative;display:block;min-height:0;padding:clamp(52px,7vw,96px) 0 clamp(56px,7vw,92px)}
.hero-copy{max-width:940px;margin-inline:auto}
.hero-eyebrow{display:flex;justify-content:center;margin-bottom:20px}
.hero-eyebrow::before{display:none}
.hero-eyebrow span{font-size:12.5px;letter-spacing:.14em;color:var(--muted)}
.hero h1{font-size:clamp(2.35rem,5.1vw,4.3rem);line-height:1.14;letter-spacing:-.028em}
.hero h1 .thin{font-weight:300}
.hero h1 .hl{
  background:linear-gradient(94deg,var(--navy) 0%,#1E5A8A 58%,var(--blue) 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.hero-lead{
  margin:26px auto 0;max-width:36em;font-size:clamp(16px,1.15vw,18.5px);
  line-height:1.88;color:var(--muted);
}
.hero-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:clamp(30px,5vw,72px);margin-top:clamp(38px,5vw,54px);padding-top:0;border-top:0}
.hero-meta div{display:block;text-align:center}
.hero-meta b{display:block;font-family:var(--sans);font-size:clamp(1.5rem,2.3vw,2rem);font-weight:600;color:var(--ink);letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.hero-meta b i{font-style:normal;color:var(--gold);font-size:.66em;margin-left:.06em}
.hero-meta span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted-2);letter-spacing:.02em}

/* 首屏视觉：暗场面板 + 手册封面浮起 */
.hero-art{
  position:relative;margin:clamp(42px,6vw,76px) auto 0;max-width:1080px;width:100%;
  aspect-ratio:2.05/1;display:flex;align-items:center;justify-content:center;
  padding:0;
}
.hero-photo{
  position:absolute;inset:0;z-index:1;border-radius:var(--r-lg);overflow:hidden;
  background:var(--navy-deep) url("../img/hero-glow.webp") center/cover no-repeat;
  box-shadow:0 50px 80px -56px rgba(7,19,31,.9);
}
.hero-photo::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,19,31,.28),rgba(7,19,31,.72)),
    radial-gradient(110% 90% at 78% 6%,rgba(44,111,163,.42),transparent 62%);
}
.hero-cover{
  position:relative;z-index:2;width:min(30%,310px);padding:8px;background:#fff;border-radius:10px;
  box-shadow:0 34px 64px -22px rgba(0,0,0,.62);
}
.hero-cover img{width:100%;border-radius:5px}
.hero-badge{
  position:absolute;z-index:3;right:clamp(18px,3vw,36px);bottom:clamp(18px,3vw,34px);
  padding:11px 16px;border-radius:14px;text-align:left;
  background:rgba(255,255,255,.1);
  -webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.92);font-size:11.5px;letter-spacing:.1em;line-height:1.6;
}
.hero-badge em{display:block;font-style:normal;font-size:9.5px;letter-spacing:.2em;color:rgba(255,255,255,.5)}
.hero-art .frame,.hero-art .organ{display:none}

/* ---------- 数据条 ---------- */
.stats{background:var(--paper-2);padding:clamp(48px,5.5vw,80px) 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,32px)}
.stat{padding:0;border-left:0;text-align:center}
.stat b{display:block;font-family:var(--sans);font-weight:600;font-size:clamp(2.1rem,3.5vw,3.1rem);line-height:1.05;color:var(--ink);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;color:var(--gold);font-size:.55em;margin-left:.06em}
.stat span{display:block;margin-top:9px;font-size:13px;letter-spacing:.01em;color:var(--muted)}

/* ---------- 区块骨架 ---------- */
.sec{padding:clamp(80px,9.5vw,144px) 0;scroll-margin-top:80px}
.sec--tight{padding-top:0}
.sec-head{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:0;padding-bottom:0;border-bottom:0;margin-bottom:clamp(38px,4.6vw,64px);
}
.sec-head::after{display:none}
.sec-no{display:none}
.sec-head h2{font-size:clamp(1.85rem,3.4vw,2.85rem);letter-spacing:-.024em;margin-top:12px;line-height:1.18}
.sec-sub{margin:16px 0 0;max-width:50ch;text-align:center;font-size:15.5px;line-height:1.8;color:var(--muted);padding-bottom:0}

/* 卡片基础投影：在近白底上建立层次（悬停时替换为更大的投影） */
.adv-item,.res-card,.plat,.pill,.proc-col,.model-item,.case-wrap{
  box-shadow:0 1px 2px rgba(7,19,31,.04),0 12px 32px -26px rgba(7,19,31,.3);
}

/* ---------- 公司介绍 ---------- */
.about-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:clamp(32px,5vw,68px);align-items:center}
.about-text p{font-size:17px;line-height:1.95;color:var(--text)}
.about-text p:last-child{margin-bottom:0}
.quote{
  margin:30px 0 0;padding:24px 28px;border-left:0;border-radius:var(--r-md);
  background:var(--paper-2);color:var(--navy);font-size:15.5px;line-height:1.85;
}
.about-media{margin:0}
.about-media img{width:100%;border:0;border-radius:var(--r-md)}
.about-media figcaption{margin-top:12px;font-size:12.5px;color:var(--muted-2);display:flex;gap:8px;align-items:baseline}
.about-media figcaption::before{display:none}

.adv{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;background:transparent;border:0;margin-top:clamp(36px,4.6vw,60px)}
.adv-item{background:#fff;border-radius:var(--r-md);padding:clamp(26px,3vw,36px);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.adv-item:hover{transform:translateY(-4px);box-shadow:0 28px 50px -32px rgba(0,0,0,.3)}
.adv-no{font-size:12px;letter-spacing:.16em;color:var(--gold);line-height:1}
.adv-item h3{margin:14px 0 12px;font-size:17px;letter-spacing:-.01em}
.adv-item li{position:relative;padding-left:15px;font-size:14px;line-height:1.85;color:var(--muted);margin-bottom:5px}
.adv-item li::before{content:"";position:absolute;left:0;top:.78em;width:5px;height:5px;border-radius:50%;background:rgba(11,37,64,.25)}

/* ---------- 生物资源库 ---------- */
.res-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.res-card{position:relative;background:#fff;border:0;border-radius:var(--r-md);padding:clamp(26px,2.6vw,34px);overflow:hidden;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.res-card::before{display:none}
.res-card:hover{transform:translateY(-4px);box-shadow:0 28px 50px -32px rgba(0,0,0,.3)}
.res-card .en{font-size:11px;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase}
.res-card h3{margin:8px 0 14px;font-size:17px;letter-spacing:-.01em}
.res-card li{position:relative;padding-left:14px;font-size:14px;color:var(--muted);line-height:1.9}
.res-card li::before{content:"";position:absolute;left:0;top:.82em;width:4px;height:4px;border-radius:50%;background:rgba(11,37,64,.22)}

/* ---------- 技术平台 ---------- */
.plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.plat{display:flex;flex-direction:column;background:#fff;border:0;border-radius:var(--r-md);padding:clamp(28px,3vw,36px);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.plat:hover{transform:translateY(-4px);box-shadow:0 28px 50px -32px rgba(0,0,0,.3)}
.plat-ico{width:50px;height:50px;padding:12px;margin-bottom:20px;border-radius:15px;background:rgba(11,37,64,.06);color:#12395C}
.plat-ico svg{width:100%;height:100%;display:block;stroke:currentColor;fill:none;stroke-width:1.25;stroke-linecap:round;stroke-linejoin:round}
.plat h3{font-size:18.5px;letter-spacing:-.014em}
.plat .en{margin-top:6px;font-size:11px;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase}
.plat ul{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);flex:1}
.plat li{position:relative;padding-left:14px;font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:7px}
.plat li::before{content:"";position:absolute;left:0;top:.75em;width:4px;height:4px;border-radius:50%;background:rgba(11,37,64,.22)}

/* ---------- 图像墙 ---------- */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:clamp(26px,3vw,40px)}
.gal figure{margin:0}
.gal .ph{overflow:hidden;border:0;border-radius:14px;background:var(--paper-2)}
.gal img{width:100%;aspect-ratio:4/3.05;object-fit:cover;transition:transform 1s var(--ease)}
.gal figure:hover img{transform:scale(1.035)}
.gal figcaption{margin-top:11px;font-size:12.5px;color:var(--muted);display:flex;gap:7px;align-items:baseline;line-height:1.6}
.gal figcaption b{font-weight:600;color:var(--ink);font-size:12.5px;flex:none}
.gal-note{margin:14px 0 0;font-size:11.5px;line-height:1.7;color:var(--muted-2)}

/* ---------- 类器官 ---------- */
.org-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(28px,4.2vw,56px);align-items:start}
.cmp{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.7}
.cmp thead th{
  background:transparent;color:var(--muted-2);font-weight:500;text-align:left;
  padding:0 14px 12px;font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  border-bottom:1px solid var(--line);
}
.cmp thead th.hl{background:transparent;color:var(--navy);font-weight:600}
.cmp tbody td{padding:12px 14px;border-bottom:1px solid var(--line-soft);color:var(--muted)}
.cmp tbody tr:nth-child(odd){background:transparent}
.cmp tbody td:first-child{color:var(--ink)}
.cmp tbody td.hl{background:rgba(176,133,64,.085);color:var(--navy);font-weight:600}
.cmp-note{margin-top:12px;font-size:12px;color:var(--muted-2);line-height:1.7}

/* 类器官：暗色成像带 */
.org-band{
  position:relative;margin:clamp(32px,4vw,52px) 0 0;padding:clamp(26px,3.4vw,42px);
  border-radius:var(--r-lg);overflow:hidden;background:var(--navy-deep);
}
.org-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(85% 110% at 86% 0%,rgba(44,111,163,.4),transparent 58%),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px) 0 0/100% 46px;
}
.org-band-head{position:relative;display:flex;align-items:baseline;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:clamp(18px,2.4vw,26px)}
.org-band-head .eyebrow{color:var(--gold-soft)}
.org-band-head p{margin:0;font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.5)}
.org-plates{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(10px,1.6vw,18px)}
.org-plates figure{margin:0}
.org-plates img{width:100%;aspect-ratio:8/9;object-fit:cover;border:0;border-radius:10px;background:#fff}
.org-plates figcaption{margin-top:11px;font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.7);text-align:center}
.org-band-note{position:relative;margin:clamp(18px,2.4vw,26px) 0 0;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.4);text-align:right}

.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
.chip{font-size:13.5px;color:var(--navy);background:var(--paper-2);border:0;border-radius:980px;padding:8px 16px;transition:.3s var(--ease)}
.chip:hover{background:var(--navy);color:#fff}
.chip b{font-weight:600;color:var(--gold);margin-right:6px;font-size:12px}

.model{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;background:transparent;border:0;margin-top:clamp(32px,4vw,52px)}
.model-item{background:#fff;border-radius:var(--r-md);padding:clamp(26px,3vw,36px)}
.model-item .no{font-size:12px;letter-spacing:.16em;color:var(--gold)}
.model-item h4{margin:12px 0 14px;font-size:16.5px;line-height:1.55}
.model-item p{font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:.7em}
.model-item p:last-child{margin-bottom:0}

/* ---------- 特色服务 ---------- */
.sp-list{display:grid;gap:0}
.sp-item{display:grid;grid-template-columns:1fr 300px;gap:clamp(24px,4vw,56px);align-items:center;padding:clamp(28px,3.4vw,44px) 0;border-bottom:1px solid var(--line-soft)}
.sp-item:last-child{border-bottom:0}
.sp-no{font-size:12px;letter-spacing:.16em;color:var(--gold);line-height:1}
.sp-item h3{margin:12px 0 12px;font-size:18px;letter-spacing:-.014em}
.sp-item p{font-size:15px;line-height:1.95;color:var(--muted);margin:0;max-width:58ch}
.sp-item figure{margin:0}
.sp-item img{width:100%;border:0;border-radius:var(--r-md)}

/* ---------- 案例 ---------- */
.tri{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pill{background:#fff;border:0;border-radius:var(--r-md);padding:clamp(30px,3.4vw,42px);text-align:left;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.pill:hover{transform:translateY(-4px);box-shadow:0 28px 50px -32px rgba(0,0,0,.3)}
.pill .big{font-family:var(--sans);font-size:clamp(2.5rem,4vw,3.4rem);line-height:1;color:var(--ink);font-weight:600;letter-spacing:-.035em}
.pill .cap{margin-top:12px;font-size:11.5px;letter-spacing:.16em;color:var(--muted-2);text-transform:uppercase}
.pill p{margin:14px 0 0;font-size:14px;line-height:1.85;color:var(--muted)}
.pill--gold{background:linear-gradient(158deg,#12395C 0%,var(--navy-deep) 100%);border:0}
.pill--gold .big{color:#fff}
.pill--gold .cap{color:var(--gold-soft)}
.pill--gold p{color:rgba(255,255,255,.72)}
.pill--gold:hover{box-shadow:0 30px 54px -30px rgba(7,19,31,.6)}

.papers{margin-top:clamp(30px,4vw,48px);border-top:1px solid var(--line);padding-top:28px;display:grid;gap:12px}
.papers .lab{font-size:11px;letter-spacing:.18em;color:var(--muted-2);text-transform:uppercase}
.papers ol{counter-reset:p;display:grid;gap:10px}
.papers li{counter-increment:p;position:relative;padding-left:34px;font-size:14.5px;line-height:1.8;color:var(--text)}
.papers li::before{content:counter(p,decimal-leading-zero);position:absolute;left:0;top:.15em;font-size:12px;color:var(--muted-2);font-variant-numeric:tabular-nums}
.papers cite{font-style:italic;color:var(--navy)}

/* 案例区块：暗色流程带 */
.case-band{position:relative;margin:clamp(32px,4vw,52px) auto 0;max-width:100%;border-radius:var(--r-lg);overflow:hidden;background:var(--navy-deep)}
.case-band img{width:100%;height:clamp(210px,30vw,320px);object-fit:cover;opacity:.42;filter:grayscale(.15) contrast(1.04)}
.case-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,19,31,.35),rgba(7,19,31,.72)),
             radial-gradient(75% 120% at 18% 8%,rgba(44,111,163,.35),transparent 62%);
}
.case-band figcaption{
  position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:24px;text-align:center;color:#fff;font-size:clamp(14px,1.7vw,19px);letter-spacing:.12em;
}
.case-band figcaption em{font-style:normal;font-size:10px;letter-spacing:.28em;color:var(--gold-soft);text-transform:uppercase}
.case-band figcaption p{margin:0;font-size:inherit;letter-spacing:inherit;line-height:1.7}
.case-band figcaption span{color:var(--gold-soft);margin:0 .5em}

/* 案例表 */
.case-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:0;border-radius:var(--r-md);box-shadow:0 1px 2px rgba(0,0,0,.04)}
.case-table{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.7;min-width:820px}
.case-table thead th{
  background:var(--paper-2);color:var(--muted-2);font-weight:500;text-align:left;
  padding:14px 18px;letter-spacing:.08em;font-size:11px;text-transform:uppercase;white-space:nowrap;
}
.case-table tbody td{padding:14px 18px;border-bottom:1px solid var(--line-soft);color:var(--muted);vertical-align:top}
.case-table tbody tr:last-child td{border-bottom:0}
.case-table tbody tr:hover td{background:rgba(11,37,64,.025)}
.case-table td:nth-child(1){color:var(--ink);width:21%}
.case-table td:nth-child(2){white-space:nowrap;width:11%}
.case-table td:nth-child(4){white-space:nowrap;text-align:center;width:76px}
.case-table td:nth-child(4) span{display:inline-block;padding:3px 10px;font-size:11.5px;font-weight:500;color:var(--navy);background:rgba(11,37,64,.07);border-radius:6px;letter-spacing:.02em}

/* ---------- 合作单位 ---------- */
.partners{display:grid;grid-template-columns:repeat(3,1fr);gap:0 clamp(24px,3.6vw,56px)}
.partners li{display:flex;gap:10px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line-soft);font-size:14.5px;color:var(--text);line-height:1.65;transition:color .3s}
.partners li:hover{color:var(--navy)}
.partners li::before{content:"";width:4px;height:4px;border-radius:50%;background:rgba(11,37,64,.22);flex:none;margin-top:.68em}

/* ---------- 合作流程 ---------- */
.proc{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;border:0;background:transparent}
.proc-col{position:relative;padding:clamp(26px,3vw,36px);border-right:0;border-radius:var(--r-md);background:#fff}
.proc-col .ph{font-size:11px;letter-spacing:.16em;color:var(--muted-2);text-transform:uppercase}
.proc-col h3{margin:10px 0 16px;font-size:17.5px;letter-spacing:-.012em}
.proc-col ol{counter-reset:step}
.proc-col li{counter-increment:step;position:relative;padding-left:30px;margin-top:12px;font-size:14px;color:var(--muted);line-height:1.8}
.proc-col li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:.05em;font-size:11.5px;color:var(--gold);letter-spacing:.04em;font-variant-numeric:tabular-nums}
.proc-col::after{display:none}

/* ---------- 服务手册 ---------- */
.manual{background:var(--paper-2);position:relative;overflow:hidden}
.manual-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(32px,4.6vw,66px);align-items:start}
.mcover{position:relative;padding:10px;background:#fff;border:0;border-radius:16px;box-shadow:0 36px 60px -44px rgba(0,0,0,.5)}
.mcover img{border-radius:8px}
.mmeta{display:flex;gap:20px;margin-top:18px;font-size:12.5px;color:var(--muted);flex-wrap:wrap}
.mmeta span{display:flex;gap:7px;align-items:center}
.mmeta span::before{display:none}
.toc{margin-top:6px}
.toc li{border-bottom:1px solid var(--line-soft)}
.toc a{display:flex;align-items:baseline;gap:14px;padding:15px 0;transition:padding .35s var(--ease),color .3s}
.toc a:hover{padding-left:6px}
.toc .n{font-size:11.5px;color:var(--muted-2);width:26px;flex:none;font-variant-numeric:tabular-nums}
.toc .t{font-size:15.5px;color:var(--ink)}
.toc .p{margin-left:auto;font-size:12.5px;color:var(--muted-2);flex:none}
.toc a:hover .t{color:var(--navy)}
.manual-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}

/* ---------- 联系 ---------- */
.contact{background:var(--navy-deep);color:#fff;padding:clamp(76px,9vw,132px) 0;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(80% 110% at 88% 0%,rgba(44,111,163,.34),transparent 60%)}
.contact-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(36px,5.5vw,80px);align-items:start}
.contact h2{color:#fff;font-size:clamp(1.95rem,3.5vw,2.9rem);line-height:1.2;letter-spacing:-.024em}
.contact .eyebrow{color:rgba(255,255,255,.5)}
.contact-lead{margin-top:20px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.66);max-width:30em}
.info{display:grid;gap:0;margin-top:4px}
.info > div{padding:17px 0;border-top:1px solid rgba(255,255,255,.12)}
.info dt{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.45);text-transform:uppercase;margin-bottom:7px}
.info dd{margin:0;font-size:15px;line-height:1.7;color:rgba(255,255,255,.92)}
.info dd a{border-bottom:1px solid rgba(255,255,255,.24);transition:color .3s,border-color .3s}
.info dd a:hover{color:var(--gold-soft);border-color:var(--gold-soft)}
.info dd .en-name{display:inline-block;margin-top:3px;font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.42)}
.contact .btn-primary{background:#fff;color:var(--navy)}
.contact .btn-primary:hover{background:#E9EEF4;color:var(--navy)}
.contact .btn-ghost{border-color:rgba(255,255,255,.26);color:#fff}
.contact .btn-ghost:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.06)}
.contact-note{margin-top:16px;font-size:12.5px;color:rgba(255,255,255,.4);line-height:1.8}

/* ---------- 页脚 ---------- */
.footer{background:#050D16;color:rgba(255,255,255,.5);padding:clamp(48px,5.5vw,68px) 0 34px;font-size:13px}
.footer-top{display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between;align-items:flex-start;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer-brand img{height:28px;width:auto;filter:brightness(0) invert(1);opacity:.85}
.footer-brand p{margin-top:14px;font-size:12.5px;line-height:1.85;color:rgba(255,255,255,.4);max-width:30em}
.footer-nav{display:flex;flex-wrap:wrap;gap:10px 26px;max-width:44%}
.footer-nav a{font-size:13px;color:rgba(255,255,255,.55);transition:color .3s}
.footer-nav a:hover{color:#fff}
.footer-bot{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;font-size:12px;color:rgba(255,255,255,.3)}
.footer-bot a{color:rgba(255,255,255,.3)}
.footer-bot a:hover{color:rgba(255,255,255,.65)}

/* ---------- 回到顶部 ---------- */
.totop{
  position:fixed;right:22px;bottom:22px;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(0,0,0,.1);background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);
  color:var(--navy);display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.4s var(--ease);z-index:90;
  box-shadow:0 6px 20px -10px rgba(0,0,0,.3);
}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-links{gap:20px}
  .nav-links a{font-size:13px}
  .plat-grid{grid-template-columns:repeat(2,1fr)}
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .partners{grid-template-columns:repeat(2,1fr)}
  .hero-art{aspect-ratio:1.9/1}
}
@media (max-width:900px){
  :root{--nav-h:56px}
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:block}
  body.menu-open .nav-links{
    display:flex;flex-direction:column;gap:0;position:fixed;inset:56px 0 auto;
    background:rgba(251,251,253,.98);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line-soft);padding:8px 6vw 20px;margin:0;
  }
  body.menu-open .nav-links a{padding:15px 0;border-bottom:1px solid var(--line-soft);font-size:16px}
  .hero-grid{padding:44px 0 56px}
  .hero-art{aspect-ratio:1.55/1;margin-top:36px}
  .hero-cover{width:min(46%,280px)}
  .about-grid,.org-grid,.contact-grid,.manual-grid{grid-template-columns:1fr}
  .about-grid{gap:28px}
  .about-media{order:-1}
  .adv,.model,.tri,.proc{grid-template-columns:1fr}
  .tri{gap:12px}
  .sp-item{grid-template-columns:1fr;gap:22px}
  .sp-item figure{max-width:260px}
  .sec-sub{display:block}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:30px 16px}
  .manual .mcover{max-width:320px}
  .footer-nav{max-width:100%}
  .contact-grid{gap:32px}
}
@media (max-width:620px){
  body{font-size:16px}
  .hero h1{font-size:clamp(2rem,8.4vw,2.6rem)}
  .hero-meta{gap:22px 28px}
  .hero-meta b{font-size:1.5rem}
  .hero-lead{font-size:15.5px}
  .hero-art{aspect-ratio:1/1.02}
  .hero-cover{width:min(60%,250px);padding:6px;border-radius:8px}
  .hero-badge{display:none}
  .plat-grid,.res-grid,.gal{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr);gap:12px}
  .partners{grid-template-columns:1fr}
  .btn{height:48px;padding:0 22px;font-size:14.5px}
  .hero-actions{flex-direction:column;align-items:stretch;margin-top:28px}
  .hero-actions .btn{width:100%}
  .cmp{font-size:12px;table-layout:auto}
  .cmp thead th{font-size:10.5px;letter-spacing:.04em;padding:0 8px 10px}
  .cmp tbody td{padding:9px 8px}
  .org-band{padding:22px 18px;border-radius:var(--r-md)}
  .org-plates{grid-template-columns:repeat(2,1fr);gap:12px}
  .org-band-note{text-align:left}
  .case-band img{height:190px}
  .case-table{font-size:12.6px;min-width:760px}
  .case-table thead th,.case-table tbody td{padding:11px 13px}
  .toc .t{font-size:14.5px}
  .totop{right:14px;bottom:14px}
  .sec{padding:64px 0}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  *{animation-duration:.001s!important;transition-duration:.001s!important}
}