/* =========================================================
   石特大健康 · 官方网站样式表
   视觉规范：高端极简 / 医用专业 / 轻奢商务 / 克制高级
   配色：主色 深青医用绿 · 辅助 哑光银灰 · 点缀 浅金 · 底色 纯白
   ========================================================= */

:root{
  /* 主色 · 深青医用绿 */
  --teal-950:#072B29;
  --teal-900:#0A3A37;
  --teal-800:#0E4A46;
  --teal-700:#115C57;
  --teal-600:#166E67;   /* 主品牌色 */
  --teal-500:#1F877E;
  --teal-400:#3FA097;
  --teal-200:#BFDCD8;
  --teal-100:#E4EFED;
  --teal-50:#F3F8F7;

  /* 辅助 · 哑光银灰 */
  --silver-700:#5C666D;
  --silver-600:#6E787F;
  --silver-500:#8A939B;
  --silver-400:#A9B1B7;
  --silver-300:#C7CDD2;
  --silver-200:#DFE3E6;
  --silver-100:#EDF0F2;
  --silver-50:#F6F8F9;

  /* 点缀 · 浅金 */
  --gold-600:#B08F4C;
  --gold-500:#C6A664;
  --gold-400:#D6BC85;
  --gold-300:#E3D2AC;
  --gold-100:#F5EEDF;

  /* 文字 */
  --ink:#16211F;
  --ink-soft:#3B4745;
  --muted:#6E787F;

  --white:#FFFFFF;
  --line:#E7EBEC;

  --shadow-sm:0 2px 10px rgba(14,74,70,.05);
  --shadow-md:0 14px 40px rgba(14,74,70,.09);
  --shadow-lg:0 30px 70px rgba(10,58,55,.16);

  --radius-s:6px;
  --radius:12px;
  --radius-l:20px;

  --container:1200px;
  --header-h:78px;

  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-num:"Helvetica Neue",Arial,"PingFang SC",sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  color:var(--ink);
  background:var(--white);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .3s var(--ease)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.005em}
p{margin:0}

/* ---------- 版心 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
.container-narrow{max-width:900px}
.section{padding:110px 0}
.section-sm{padding:76px 0}
.bg-white{background:var(--white)}
.bg-silver{background:var(--silver-50)}
.bg-teal-soft{background:var(--teal-50)}
.bg-ink{background:var(--teal-950);color:#fff}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.28em;font-weight:600;
  color:var(--gold-600);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:1.5px;background:var(--gold-500);display:inline-block}
.section-head{max-width:760px;margin:0 auto 64px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.section-title{font-size:clamp(28px,3.4vw,44px);margin:18px 0 0;color:var(--ink)}
.section-title .hl{color:var(--teal-600)}
.section-sub{margin-top:20px;color:var(--muted);font-size:16.5px;line-height:1.95}
.divider{width:64px;height:3px;background:linear-gradient(90deg,var(--teal-600),var(--gold-400));border-radius:3px;margin:26px auto 0}
.section-head.left .divider{margin-left:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 34px;border-radius:999px;font-size:15px;font-weight:600;
  letter-spacing:.06em;transition:all .34s var(--ease);white-space:nowrap;
}
.btn svg{width:16px;height:16px;transition:transform .34s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  background:linear-gradient(135deg,var(--teal-600),var(--teal-800));
  color:#fff;box-shadow:0 12px 30px rgba(17,92,87,.28);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(17,92,87,.36)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-400),var(--gold-600));
  color:#3a2f14;box-shadow:0 12px 30px rgba(176,143,76,.28);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(176,143,76,.36)}
.btn-ghost{
  background:transparent;color:var(--teal-700);
  border:1.5px solid var(--teal-200);
}
.btn-ghost:hover{border-color:var(--teal-600);background:var(--teal-50);transform:translateY(-3px)}
.btn-ghost-light{
  background:rgba(255,255,255,.06);color:#fff;border:1.5px solid rgba(255,255,255,.42);
  backdrop-filter:blur(6px);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-3px)}
.btn-lg{padding:17px 42px;font-size:16px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--header-h);
  display:flex;align-items:center;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),height .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-header.solid{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  box-shadow:0 6px 26px rgba(14,74,70,.07);
  border-bottom-color:var(--line);
  height:68px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em}
.brand .logo-mark{width:38px;height:38px;flex:0 0 38px}
.brand .brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand .brand-name{font-size:19px;letter-spacing:.12em;color:#fff;transition:color .4s var(--ease)}
.brand .brand-tag{font-size:11px;letter-spacing:.14em;color:rgba(255,255,255,.72);font-weight:500;transition:color .4s var(--ease)}
.site-header.solid .brand-name{color:var(--teal-800)}
.site-header.solid .brand-tag{color:var(--gold-600)}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;padding:10px 15px;font-size:15px;font-weight:500;letter-spacing:.05em;
  color:rgba(255,255,255,.88);border-radius:8px;transition:color .3s var(--ease);
}
.site-header.solid .nav a{color:var(--ink-soft)}
.nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;
  background:var(--gold-500);transform:scaleX(0);transform-origin:left;transition:transform .34s var(--ease);
}
.nav a:hover{color:#fff}
.site-header.solid .nav a:hover{color:var(--teal-700)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:#fff}
.site-header.solid .nav a.active{color:var(--teal-700);font-weight:600}

.header-cta{display:flex;align-items:center;gap:12px}
.header-phone{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:rgba(255,255,255,.9)}
.site-header.solid .header-phone{color:var(--teal-700)}
.header-phone svg{width:16px;height:16px}
.btn-header{
  padding:11px 24px;font-size:14px;border-radius:999px;font-weight:600;letter-spacing:.05em;
  background:linear-gradient(135deg,var(--gold-400),var(--gold-600));color:#3a2f14;
  transition:all .3s var(--ease);box-shadow:0 8px 22px rgba(176,143,76,.3);
}
.btn-header:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(176,143,76,.4)}

.nav .nav-cta-mobile{display:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;position:relative}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:#fff;border-radius:2px;transition:.3s var(--ease)}
.site-header.solid .nav-toggle span{background:var(--teal-800)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 首页 Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:calc(var(--header-h) + 60px) 0 80px;overflow:hidden;
  background:var(--teal-950);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.9}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,43,41,.72) 0%,rgba(7,43,41,.5) 45%,rgba(7,43,41,.86) 100%),
    radial-gradient(1100px 620px at 50% 8%,rgba(31,135,126,.34),transparent 62%);
}
.hero-inner{position:relative;z-index:2;width:100%;text-align:center;color:#fff}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;padding:8px 20px;border-radius:999px;
  border:1px solid rgba(214,188,133,.5);background:rgba(198,166,100,.1);
  font-size:13.5px;letter-spacing:.22em;color:var(--gold-300);margin-bottom:34px;font-weight:500;
}
.hero-kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--gold-400);box-shadow:0 0 10px var(--gold-400)}
.hero h1{
  font-size:clamp(40px,6.4vw,84px);font-weight:800;letter-spacing:.06em;line-height:1.12;
  margin:0 0 22px;text-shadow:0 6px 40px rgba(0,0,0,.28);
}
.hero .hero-sub{
  font-size:clamp(20px,2.6vw,30px);font-weight:300;letter-spacing:.4em;color:rgba(255,255,255,.94);
  margin-bottom:18px;padding-left:.4em;
}
.hero .hero-position{font-size:17px;letter-spacing:.16em;color:var(--gold-300);margin-bottom:44px}
.hero-stats{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px 46px;
  padding:26px 20px;margin:0 auto 46px;max-width:1000px;
  border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16);
}
.hero-stat{text-align:center;min-width:110px}
.hero-stat .num{font-family:var(--font-num);font-size:clamp(26px,3vw,38px);font-weight:700;color:#fff;line-height:1.1}
.hero-stat .num .unit{font-size:.6em;margin-left:2px;color:var(--gold-300)}
.hero-stat .lbl{font-size:13.5px;letter-spacing:.12em;color:rgba(255,255,255,.72);margin-top:8px}
.hero-actions{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}
.hero-scroll{
  position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  color:rgba(255,255,255,.6);font-size:11px;letter-spacing:.3em;display:flex;flex-direction:column;align-items:center;gap:8px;
}
.hero-scroll .bar{width:1px;height:38px;background:linear-gradient(180deg,rgba(255,255,255,.6),transparent);animation:scrolldot 2s infinite}
@keyframes scrolldot{0%{opacity:.2;transform:scaleY(.4)}50%{opacity:1}100%{opacity:.2;transform:scaleY(.4)}}

/* ---------- 页面通用 Banner ---------- */
.page-hero{
  position:relative;padding:calc(var(--header-h) + 118px) 0 100px;
  background:var(--teal-950);color:#fff;overflow:hidden;
}
.page-hero .ph-bg{position:absolute;inset:0;z-index:0}
.page-hero .ph-bg img{width:100%;height:100%;object-fit:cover;opacity:.55}
.page-hero .ph-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(7,43,41,.92),rgba(14,74,70,.72) 55%,rgba(7,43,41,.9))}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:clamp(32px,4.6vw,56px);letter-spacing:.03em}
.page-hero .lead{margin-top:24px;font-size:clamp(16px,1.6vw,19px);color:rgba(255,255,255,.82);line-height:2;max-width:820px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;letter-spacing:.1em;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a:hover{color:var(--gold-300)}
.breadcrumb .sep{opacity:.5}

/* ---------- 数据背书条 ---------- */
.stat-strip{background:var(--teal-900);color:#fff}
.stat-strip .container{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:rgba(255,255,255,.1)}
.stat-strip .item{padding:40px 22px;text-align:center;background:var(--teal-900)}
.stat-strip .num{font-family:var(--font-num);font-size:clamp(28px,3.2vw,42px);font-weight:700}
.stat-strip .num .unit{font-size:.58em;color:var(--gold-300);margin-left:2px}
.stat-strip .lbl{font-size:14px;color:rgba(255,255,255,.72);margin-top:8px;letter-spacing:.08em}

/* ---------- 品牌主张 ---------- */
.claim{position:relative;text-align:center;overflow:hidden}
.claim .claim-deco{position:absolute;top:50%;transform:translateY(-50%);opacity:.5;pointer-events:none}
.claim .claim-deco.l{left:0}
.claim .claim-deco.r{right:0}
.claim .slogan{font-size:clamp(28px,3.8vw,46px);font-weight:800;line-height:1.5;letter-spacing:.02em;color:var(--teal-900)}
.claim .slogan .mark{color:var(--gold-600)}
.claim p.body{margin:34px auto 0;max-width:820px;color:var(--ink-soft);font-size:17.5px;line-height:2.1}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:26px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-l);
  padding:40px 34px;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--teal-600),var(--gold-400));
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card .icon{
  width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--teal-50),var(--teal-100));margin-bottom:26px;
  transition:all .4s var(--ease);
}
.card .icon svg{width:30px;height:30px;stroke:var(--teal-600);fill:none;stroke-width:1.6;transition:stroke .4s var(--ease)}
.card:hover .icon{background:linear-gradient(135deg,var(--teal-600),var(--teal-800))}
.card:hover .icon svg{stroke:#fff}
.card h3{font-size:19px;margin-bottom:14px;color:var(--ink)}
.card h3 .tag{color:var(--gold-600)}
.card p{color:var(--muted);font-size:15.2px;line-height:1.95}
.card .num-badge{
  position:absolute;top:26px;right:30px;font-family:var(--font-num);font-size:44px;font-weight:800;
  color:var(--teal-50);line-height:1;
}

/* ---------- 方法论 / 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.split.reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{border-radius:var(--radius-l);box-shadow:var(--shadow-md);width:100%}
.split-media .frame{
  position:absolute;inset:18px -18px -18px 18px;border:1.5px solid var(--gold-300);
  border-radius:var(--radius-l);z-index:-1;
}
.flow-list{margin-top:30px;display:flex;flex-direction:column;gap:16px}
.flow-item{display:flex;gap:18px;align-items:flex-start}
.flow-item .idx{
  flex:0 0 40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;
  background:var(--teal-50);color:var(--teal-700);border:1px solid var(--teal-200);
}
.flow-item .txt h4{font-size:16.5px;margin-bottom:5px;color:var(--ink)}
.flow-item .txt p{font-size:14.6px;color:var(--muted);line-height:1.85}
.en-badge{font-size:12px;letter-spacing:.16em;color:var(--gold-600);font-weight:600}

/* 5D 矩阵 */
.matrix5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:10px}
.matrix5 .step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 18px;text-align:center;transition:all .4s var(--ease);
}
.matrix5 .step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--teal-200)}
.matrix5 .step .en{font-size:11px;letter-spacing:.14em;color:var(--gold-600);font-weight:600}
.matrix5 .step .cn{font-size:17px;font-weight:700;margin:8px 0 6px;color:var(--teal-800)}
.matrix5 .step .ds{font-size:12.5px;color:var(--muted);line-height:1.7}
.matrix5 .step .arrow{position:absolute;right:-16px;top:50%;transform:translateY(-50%);color:var(--teal-300);font-size:16px;z-index:2}
.matrix5 .step:last-child .arrow{display:none}

/* ---------- 客户墙 ---------- */
.client-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden}
.client-wall .logo-cell{
  background:#fff;display:flex;align-items:center;justify-content:center;min-height:120px;padding:20px;
  transition:all .4s var(--ease);
}
.client-wall .logo-cell:hover{background:var(--teal-50)}
.client-wall .logo-cell span{
  font-size:20px;font-weight:700;letter-spacing:.08em;color:var(--silver-500);
  transition:color .4s var(--ease);filter:grayscale(1);
}
.client-wall .logo-cell:hover span{color:var(--teal-700);filter:none}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:40px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--teal-600),var(--gold-400),var(--teal-200))}
.timeline .tl-item{position:relative;padding:0 0 44px 6px}
.timeline .tl-item:last-child{padding-bottom:0}
.timeline .tl-item::before{
  content:"";position:absolute;left:-40px;top:6px;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--teal-600);box-shadow:0 0 0 5px var(--teal-50);
}
.timeline .tl-item .year{font-family:var(--font-num);font-size:22px;font-weight:800;color:var(--teal-700);letter-spacing:.02em}
.timeline .tl-item h4{font-size:17px;margin:6px 0 8px;color:var(--ink)}
.timeline .tl-item p{color:var(--muted);font-size:15px;line-height:1.9;max-width:720px}

/* ---------- 三段式 详情块 ---------- */
.detail-block{padding:78px 0;border-top:1px solid var(--line)}
.detail-block:first-of-type{border-top:none}
.detail-head{display:flex;align-items:baseline;gap:18px;margin-bottom:30px;flex-wrap:wrap}
.detail-head .no{font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--gold-600);letter-spacing:.16em}
.detail-head h3{font-size:clamp(22px,2.6vw,32px);color:var(--ink)}
.detail-head .en{font-size:13px;letter-spacing:.14em;color:var(--silver-500)}
.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:34px}
.mini-card{background:var(--silver-50);border-radius:var(--radius);padding:28px 26px;border:1px solid var(--line);transition:all .4s var(--ease)}
.mini-card:hover{background:#fff;box-shadow:var(--shadow-md);transform:translateY(-4px)}
.mini-card h4{font-size:15.5px;color:var(--teal-700);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.mini-card h4 svg{width:18px;height:18px;stroke:var(--gold-600);fill:none;stroke-width:1.7}
.mini-card p,.mini-card li{font-size:14.6px;color:var(--muted);line-height:1.92}
.mini-card ul{margin-top:6px}
.mini-card li{position:relative;padding-left:16px;margin-bottom:6px}
.mini-card li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--teal-400)}

/* ---------- 服务 / 案例 ---------- */
.svc-card{position:relative;display:flex;flex-direction:column;gap:14px}
.svc-card .badge{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--gold-600);letter-spacing:.12em}
.case-card{
  position:relative;border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);
  transition:all .45s var(--ease);
}
.case-card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--silver-100)}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.case-card:hover .thumb img{transform:scale(1.07)}
.case-card .thumb .cat{position:absolute;top:16px;left:16px;background:rgba(14,74,70,.86);color:#fff;font-size:12px;padding:6px 14px;border-radius:999px;letter-spacing:.08em;backdrop-filter:blur(4px)}
.case-card .info{padding:26px 26px 30px}
.case-card .info h3{font-size:18px;margin-bottom:10px;color:var(--ink)}
.case-card .info p{font-size:14.6px;color:var(--muted);line-height:1.88}
.case-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:transparent}

/* 案例四段式 */
.case-detail{background:var(--silver-50);border-radius:var(--radius-l);padding:56px;border:1px solid var(--line)}
.case-detail .cd-head{display:flex;justify-content:space-between;align-items:flex-start;gap:30px;flex-wrap:wrap;margin-bottom:36px}
.case-detail .cd-head h3{font-size:clamp(22px,2.6vw,30px)}
.case-detail .cd-tags{display:flex;gap:10px;flex-wrap:wrap}
.case-detail .cd-tags span{font-size:13px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--teal-700)}
.seg4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.seg4 .seg{background:#fff;border-radius:var(--radius);padding:26px 22px;border:1px solid var(--line)}
.seg4 .seg .sn{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--gold-600);letter-spacing:.14em}
.seg4 .seg h4{font-size:16px;margin:10px 0 10px;color:var(--ink)}
.seg4 .seg p{font-size:14.2px;color:var(--muted);line-height:1.88}

/* ---------- 洞察 ---------- */
.insight-card{display:grid;grid-template-columns:300px 1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .4s var(--ease)}
.insight-card:hover{box-shadow:var(--shadow-md);transform:translateY(-5px);border-color:transparent}
.insight-card .thumb{position:relative;min-height:210px;background:linear-gradient(135deg,var(--teal-700),var(--teal-900));overflow:hidden;display:flex;align-items:center;justify-content:center}
.insight-card .thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.insight-card .thumb .cat{position:relative;z-index:2;color:#fff;font-size:13px;letter-spacing:.16em;border:1px solid rgba(255,255,255,.5);padding:7px 16px;border-radius:999px}
.insight-card .body{padding:34px 38px;display:flex;flex-direction:column;justify-content:center}
.insight-card .body .meta{font-size:13px;color:var(--gold-600);letter-spacing:.08em;margin-bottom:12px}
.insight-card .body h3{font-size:20px;margin-bottom:14px;color:var(--ink);line-height:1.5}
.insight-card .body p{font-size:15px;color:var(--muted);line-height:1.92}
.insight-card .body .read{margin-top:20px;font-size:14px;font-weight:600;color:var(--teal-700);display:inline-flex;align-items:center;gap:8px}
.insight-card .body .read svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .3s var(--ease)}
.insight-card:hover .body .read svg{transform:translateX(5px)}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .35s var(--ease)}
.faq-item.open{box-shadow:var(--shadow-md);border-color:transparent}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 30px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);transition:color .3s var(--ease)}
.faq-q:hover{color:var(--teal-700)}
.faq-q .ico{flex:0 0 30px;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--teal-200);position:relative;transition:all .35s var(--ease)}
.faq-q .ico::before,.faq-q .ico::after{content:"";position:absolute;background:var(--teal-600);transition:all .35s var(--ease)}
.faq-q .ico::before{left:8px;right:8px;top:14px;height:1.7px}
.faq-q .ico::after{top:8px;bottom:8px;left:14px;width:1.7px}
.faq-item.open .faq-q .ico{background:var(--teal-600);border-color:var(--teal-600)}
.faq-item.open .faq-q .ico::before{background:#fff}
.faq-item.open .faq-q .ico::after{background:#fff;transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a .inner{padding:0 30px 30px;color:var(--muted);font-size:15.4px;line-height:2}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;color:#fff;text-align:center;padding:120px 0;background:var(--teal-950)}
.cta-band .cta-bg{position:absolute;inset:0;z-index:0}
.cta-band .cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.6}
.cta-band .cta-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(7,43,41,.9),rgba(17,92,87,.72))}
.cta-band .container{position:relative;z-index:2}
.cta-band .slogan{font-size:clamp(26px,3.6vw,44px);font-weight:800;line-height:1.5;margin-bottom:18px}
.cta-band .sub{color:rgba(255,255,255,.8);font-size:17px;letter-spacing:.06em;margin-bottom:40px}
.cta-band .actions{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:9px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--ink-soft);letter-spacing:.03em}
.field label .req{color:var(--gold-600)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:15px;color:var(--ink);padding:14px 16px;border-radius:10px;
  border:1px solid var(--silver-300);background:#fff;transition:all .3s var(--ease);width:100%;
}
.field textarea{resize:vertical;min-height:130px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal-600);box-shadow:0 0 0 4px var(--teal-50)}
.form-note{font-size:13px;color:var(--muted);margin-top:6px}
.form-success{display:none;background:var(--teal-50);border:1px solid var(--teal-200);color:var(--teal-800);padding:20px 24px;border-radius:var(--radius);font-size:15px;margin-top:20px}
.form-success.show{display:block;animation:fadeUp .5s var(--ease)}

/* ---------- 联系信息 ---------- */
.contact-info{display:flex;flex-direction:column;gap:26px}
.contact-item{display:flex;gap:18px;align-items:flex-start}
.contact-item .ic{flex:0 0 48px;width:48px;height:48px;border-radius:14px;background:var(--teal-50);display:flex;align-items:center;justify-content:center}
.contact-item .ic svg{width:22px;height:22px;stroke:var(--teal-600);fill:none;stroke-width:1.7}
.contact-item .txt h4{font-size:15px;color:var(--ink);margin-bottom:4px}
.contact-item .txt p{font-size:14.6px;color:var(--muted);line-height:1.8}
.contact-item .txt a:hover{color:var(--teal-700)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--teal-950);color:rgba(255,255,255,.72);padding:80px 0 34px;font-size:14.5px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:50px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{margin-bottom:22px}
.footer-brand .brand .brand-name{color:#fff}
.footer-brand .brand .brand-tag{color:var(--gold-400)}
.footer-brand p{line-height:2;max-width:340px;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:22px;letter-spacing:.08em}
.footer-col ul{display:flex;flex-direction:column;gap:13px}
.footer-col a{color:rgba(255,255,255,.66);font-size:14.5px}
.footer-col a:hover{color:var(--gold-300)}
.footer-contact .line{display:flex;gap:12px;margin-bottom:16px;align-items:flex-start}
.footer-contact .line svg{width:17px;height:17px;stroke:var(--gold-400);fill:none;stroke-width:1.7;flex:0 0 17px;margin-top:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:28px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.5)}
.footer-bottom .links{display:flex;gap:22px}
.footer-bottom a:hover{color:var(--gold-300)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
html.noanim .reveal{opacity:1 !important;transform:none !important;transition:none !important}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}.d5{transition-delay:.4s}

/* ---------- 悬浮咨询条 ---------- */
.float-consult{
  position:fixed;right:26px;bottom:26px;z-index:900;display:flex;flex-direction:column;gap:12px;align-items:flex-end;
}
.float-consult .fc-btn{
  width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--teal-600),var(--teal-800));
  display:flex;align-items:center;justify-content:center;box-shadow:0 12px 30px rgba(17,92,87,.34);
  transition:all .34s var(--ease);position:relative;
}
.float-consult .fc-btn svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:1.7}
.float-consult .fc-btn:hover{transform:translateY(-4px) scale(1.05)}
.float-consult .fc-btn .tip{
  position:absolute;right:70px;top:50%;transform:translateY(-50%);white-space:nowrap;
  background:var(--teal-900);color:#fff;font-size:13.5px;padding:9px 16px;border-radius:8px;opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.float-consult .fc-btn:hover .tip{opacity:1}
.float-consult .fc-btn.gold{background:linear-gradient(135deg,var(--gold-400),var(--gold-600))}
.float-consult .fc-btn.gold svg{stroke:#3a2f14}
.btn-top{opacity:0;pointer-events:none}
.btn-top.show{opacity:1;pointer-events:auto}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav a{padding:10px 11px;font-size:14.5px}
  .header-phone{display:none}
}
@media (max-width:1024px){
  .section{padding:84px 0}
  .split{gap:44px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stat-strip .container{grid-template-columns:repeat(3,1fr)}
  .matrix5{grid-template-columns:repeat(3,1fr)}
  .matrix5 .step .arrow{display:none}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
  .seg4{grid-template-columns:repeat(2,1fr)}
  .client-wall{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .header-cta .btn-header{display:none}
  .nav{
    position:fixed;top:0;right:0;width:290px;height:100vh;flex-direction:column;align-items:stretch;
    background:#fff;padding:calc(var(--header-h) + 20px) 22px 30px;gap:2px;
    transform:translateX(105%);transition:transform .45s var(--ease);box-shadow:-20px 0 50px rgba(0,0,0,.16);z-index:1001;
  }
  .nav.open{transform:none}
  .nav a{color:var(--ink-soft)!important;padding:15px 12px;border-radius:10px;font-size:16px}
  .nav a::after{display:none}
  .nav a.active{background:var(--teal-50);color:var(--teal-700)!important}
  .nav a.nav-cta-mobile{
    display:flex;justify-content:center;align-items:center;margin-top:20px;padding:15px;
    background:linear-gradient(135deg,var(--gold-400),var(--gold-600));
    color:#3a2f14!important;border-radius:999px;font-weight:600;letter-spacing:.05em;
  }
  .nav a.nav-cta-mobile::after{display:none}
  .nav-toggle{z-index:1002}
  .nav-backdrop{position:fixed;inset:0;background:rgba(7,43,41,.42);z-index:1000;opacity:0;pointer-events:none;transition:opacity .4s var(--ease)}
  .nav-backdrop.show{opacity:1;pointer-events:auto}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .split.reverse .split-media{order:0}
  .split-media .frame{display:none}
  .three-col{grid-template-columns:1fr}
  .insight-card{grid-template-columns:1fr}
  .insight-card .thumb{min-height:170px}
  .case-detail{padding:34px 24px}
  .form-grid{grid-template-columns:1fr}
  .matrix5{grid-template-columns:repeat(2,1fr)}
  .stat-strip .container{grid-template-columns:repeat(2,1fr)}
  .client-wall{grid-template-columns:repeat(2,1fr)}
  .hero .hero-sub{letter-spacing:.24em}
  .footer-top{grid-template-columns:1fr}
  .float-consult{right:16px;bottom:16px}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .section{padding:66px 0}
  .hero-stats{gap:18px 26px}
  .hero-stat{min-width:80px}
  .seg4{grid-template-columns:1fr}
  .matrix5{grid-template-columns:1fr}
  .client-wall{grid-template-columns:1fr 1fr}
  .detail-block{padding:56px 0}
}

/* 打印 */
@media print{.site-header,.float-consult,.cta-actions{display:none}}