/* ============================================================
   AMU 宣传网站 · 样式系统
   杂志风 × 医疗科技 · 靛蓝瓷主题
   ============================================================ */

:root{
  --ink:#0a1f3d;          /* 主墨色 · 深蓝 */
  --ink-2:#12395a;
  --ink-rgb:10,31,61;
  --paper:#f1f3f5;        /* 纸色 */
  --paper-2:#e4e8ec;
  --paper-rgb:241,243,245;
  --blue:#1e88e5;         /* 医疗蓝 */
  --cyan:#2d9cdb;         /* 青蓝 */
  --cyan-2:#56ccf2;       /* 发光青 */
  --ice:#eaf7ff;
  --line:rgba(10,31,61,.14);
  --line-2:rgba(10,31,61,.08);

  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --serif-en:"Playfair Display","Source Serif 4",Georgia,serif;
  --serif-zh:"Noto Serif SC",serif;
  --sans-zh:"Noto Sans SC",sans-serif;

  --pad-x:6vw;
  --maxw:1320px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans-zh);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
mark{background:linear-gradient(180deg,transparent 55%,rgba(45,156,219,.32) 55%);color:inherit;padding:0 .05em}
em{font-style:italic;font-family:var(--serif-en)}

/* ============ WebGL 背景 ============ */
#bg-gl{position:fixed;inset:0;width:100vw;height:100vh;z-index:-2;display:block;opacity:.9}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 80% at 50% 0%,rgba(var(--paper-rgb),0) 40%,rgba(var(--paper-rgb),.6) 100%)}

/* ============ 通用排版 ============ */
.kicker{
  font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--cyan);opacity:.92;margin-bottom:1.4rem;font-weight:500;
}
.h-section{
  font-family:var(--serif-zh);font-weight:900;line-height:1.04;letter-spacing:-.01em;
  font-size:clamp(2.4rem,5.2vw,4.6rem);
}
.h-sub{font-family:var(--serif-zh);font-weight:700;font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.15}
.lead{
  font-family:var(--serif-zh);font-weight:400;line-height:1.6;opacity:.82;
  font-size:clamp(1.05rem,1.5vw,1.4rem);max-width:48ch;
}

.section{padding:clamp(5rem,11vh,10rem) var(--pad-x);position:relative}
.section-head{max-width:var(--maxw);margin:0 auto clamp(2.5rem,5vh,4.5rem)}
.section-head.center{text-align:center}
.section-head.center .lead{margin-left:auto;margin-right:auto}
.section-head .lead{margin-top:1.6rem}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  padding:.95em 1.8em;border-radius:999px;transition:.28s ease;cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--cyan);transform:translateY(-2px);box-shadow:0 10px 30px rgba(45,156,219,.35)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(var(--ink-rgb),.04)}

/* ============ 导航 ============ */
#nav{
  position:fixed;top:0;left:0;right:0;z-index:80;
  display:flex;align-items:center;justify-content:space-between;
  padding:1.1rem var(--pad-x);
  transition:background .35s ease,padding .35s ease,box-shadow .35s ease;
}
#nav.scrolled{
  background:rgba(var(--paper-rgb),.82);backdrop-filter:blur(14px);
  padding:.7rem var(--pad-x);box-shadow:0 1px 0 var(--line-2);
}
.nav-logo{display:inline-flex;align-items:center;gap:.55rem}
.logo-img{height:1.7rem;width:auto;display:block}
.logo-mark{font-family:var(--serif-en);font-weight:800;font-size:1.55rem;letter-spacing:-.02em;color:var(--ink)}
.logo-ai{color:inherit}
.nav-links{display:flex;gap:2rem}
.nav-links a{
  font-family:var(--sans-zh);font-size:.92rem;font-weight:500;opacity:.72;
  position:relative;padding:.2em 0;transition:opacity .2s;
}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--cyan);transition:width .25s ease}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{opacity:1;color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:1.8rem}
.nav-cta{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  padding:.6em 1.3em;border-radius:999px;background:var(--ink);color:var(--paper);transition:.25s;
}
.nav-cta:hover{background:var(--cyan)}
.nav-lang{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;font-weight:500;
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--ink);cursor:pointer;transition:.25s;flex-shrink:0;
}
.nav-lang:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-1px)}
.drawer-lang{
  margin-top:1.4rem;font-family:var(--mono);font-size:.95rem;letter-spacing:.06em;
  background:transparent;border:1px solid rgba(255,255,255,.3);color:var(--paper);
  border-radius:999px;padding:.7rem;cursor:pointer;transition:.25s;
}
.drawer-lang:hover{border-color:var(--cyan-2);color:var(--cyan-2)}

/* ============ 弹窗 Modal ============ */
.modal-overlay{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px;
  background:rgba(var(--ink-rgb),.55);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
.modal-overlay.open{opacity:1;visibility:visible}
.modal{
  position:relative;width:100%;max-width:468px;background:var(--paper);border:1px solid var(--line-2);
  border-radius:22px;padding:40px 36px 30px;box-shadow:0 30px 90px rgba(var(--ink-rgb),.4);
  transform:translateY(18px) scale(.97);transition:transform .35s cubic-bezier(.22,1,.36,1);
  max-height:92vh;overflow-y:auto;
}
.modal-overlay.open .modal{transform:none}
.modal-sm{max-width:404px;text-align:center}
.modal-close{
  position:absolute;top:16px;right:18px;width:34px;height:34px;border:none;background:transparent;
  font-size:26px;line-height:1;color:var(--ink);opacity:.45;cursor:pointer;transition:.2s;border-radius:50%;
}
.modal-close:hover{opacity:1;background:rgba(var(--ink-rgb),.06)}
.modal-kicker{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin:0 0 10px}
.modal h3{font-family:var(--serif-zh);font-size:1.7rem;font-weight:700;color:var(--ink);margin:0 0 8px;line-height:1.2}
.modal-sub{font-size:.95rem;line-height:1.6;color:rgba(var(--ink-rgb),.66);margin:0 0 24px}
.modal-form{display:flex;flex-direction:column;gap:14px}
.modal-form label{display:flex;flex-direction:column;gap:6px;font-size:.84rem;font-weight:500;color:var(--ink)}
.modal-form input,.modal-form select{
  font:inherit;font-size:.95rem;padding:.72em .9em;border:1px solid var(--line);border-radius:11px;
  background:#fff;color:var(--ink);transition:border-color .2s,box-shadow .2s;width:100%;
}
.modal-form select{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%230a1f3d' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right .95em center;padding-right:2.4em;
}
.modal-form select:invalid{color:#9aa3ad}
.modal-form input:focus,.modal-form select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(45,156,219,.16)}
.modal-form input.invalid,.modal-form select.invalid{border-color:#e5484d;box-shadow:0 0 0 3px rgba(229,72,77,.14)}
.modal-err{font-size:.8rem;color:#e5484d;margin:0;min-height:1.1em}
.modal-submit{margin-top:4px;width:100%;justify-content:center;text-align:center;border:none;cursor:pointer}
.modal-note{font-size:.74rem;color:rgba(var(--ink-rgb),.5);text-align:center;margin:6px 0 0;line-height:1.5}
.modal-success{text-align:center;padding:14px 0 6px}
.modal-success-ico{
  width:66px;height:66px;border-radius:50%;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;
  font-size:32px;color:#fff;background:linear-gradient(135deg,var(--cyan),var(--cyan-2));box-shadow:0 10px 28px rgba(45,156,219,.4);
}
.modal-success h4{font-family:var(--serif-zh);font-size:1.4rem;font-weight:700;margin:0 0 8px;color:var(--ink)}
.modal-success p{font-size:.92rem;line-height:1.6;color:rgba(var(--ink-rgb),.66);margin:0 0 22px}
.modal-done{cursor:pointer}
.modal-email{
  display:inline-block;font-family:var(--mono);font-size:1.08rem;color:var(--ink);
  background:rgba(45,156,219,.1);padding:.65em 1.1em;border-radius:11px;margin:8px 0 18px;word-break:break-all;
  transition:.2s;
}
.modal-email:hover{background:rgba(45,156,219,.18)}
.modal-copy{
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;padding:.62em 1.5em;border-radius:999px;
  border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;transition:.2s;
}
.modal-copy:hover{border-color:var(--cyan);color:var(--cyan)}
body.modal-open{overflow:hidden}
@media (max-width:520px){
  .modal{padding:34px 22px 26px;border-radius:18px}
  .modal h3{font-size:1.45rem}
}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-burger span{width:24px;height:2px;background:var(--ink);transition:.3s}

#drawer{
  position:fixed;inset:0 0 0 auto;width:min(78vw,320px);z-index:79;
  background:var(--ink);color:var(--paper);
  display:flex;flex-direction:column;gap:.4rem;justify-content:center;padding:2rem 2.4rem;
  transform:translateX(100%);transition:transform .4s cubic-bezier(.77,0,.175,1);
}
#drawer.open{transform:translateX(0)}
#drawer a{font-family:var(--serif-zh);font-size:1.4rem;font-weight:500;padding:.6rem 0;border-bottom:1px solid rgba(255,255,255,.1)}
#drawer .drawer-cta{margin-top:1.4rem;border:0;background:var(--cyan);text-align:center;border-radius:999px;padding:.9rem;font-size:1rem}

/* ============ 滚动进度条 ============ */
#progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--cyan),var(--cyan-2));z-index:90;transition:width .1s linear}

/* ============ HERO ============ */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:7rem var(--pad-x) 4rem;position:relative}
.hero-chrome{
  position:absolute;top:5.2rem;left:var(--pad-x);right:var(--pad-x);
  display:flex;justify-content:space-between;
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;opacity:.55;
}
.hero-inner{
  max-width:var(--maxw);margin:0 auto;width:100%;
  display:grid;grid-template-columns:1.05fr .95fr;gap:4vw;align-items:center;
}
.hero-title{
  font-family:var(--serif-en);font-weight:900;letter-spacing:-.03em;line-height:.9;
  font-size:clamp(4.5rem,13vw,11rem);margin:.4rem 0 0;
}
.hero-title-ai{color:inherit}
.hero-sub{
  font-family:var(--serif-zh);font-weight:700;line-height:1.18;margin-top:1.4rem;
  font-size:clamp(1.7rem,3.6vw,2.9rem);letter-spacing:-.01em;
}
.hero-lead{
  font-family:var(--sans-zh);font-weight:400;line-height:1.75;opacity:.78;margin-top:1.8rem;
  font-size:clamp(1rem,1.25vw,1.18rem);max-width:46ch;
}
.hero-actions{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.hero-meta{display:flex;align-items:center;gap:1.1rem;margin-top:2.6rem;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;opacity:.6}
.hero-meta i{width:26px;height:1px;background:currentColor;opacity:.4}
.hero-visual{position:relative}
.hero-figure{border-radius:14px;overflow:hidden;box-shadow:0 30px 80px -30px rgba(var(--ink-rgb),.5);
  border:1px solid rgba(255,255,255,.4)}
.hero-figure img{width:100%;height:auto;display:block}
.hero-stat-float{
  position:absolute;left:-2.5rem;bottom:-1.8rem;
  background:var(--ink);color:var(--paper);padding:1.2rem 1.6rem;border-radius:12px;
  box-shadow:0 20px 50px -15px rgba(var(--ink-rgb),.6);
  display:flex;flex-direction:column;gap:.2rem;
}
.hero-stat-float strong{font-family:var(--serif-en);font-weight:800;font-size:2.6rem;line-height:1}
.hero-stat-float strong span{color:var(--cyan-2);font-size:.6em}
.hero-stat-float em{font-family:var(--sans-zh);font-style:normal;font-size:.78rem;opacity:.7;letter-spacing:.05em}
.hero-stat-float.badge-label{flex-direction:row;align-items:center;gap:.6rem;padding:1rem 1.5rem}
.hero-stat-float.badge-label::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--cyan-2);box-shadow:0 0 0 4px rgba(86,204,242,.28)}
.hero-stat-float.badge-label em{font-family:var(--sans-zh);font-weight:700;font-size:1.06rem;opacity:1;letter-spacing:.02em;color:var(--paper)}
.hero-scroll{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  font-family:var(--mono);font-size:10px;letter-spacing:.25em;opacity:.5;
}
.hero-scroll i{width:1px;height:36px;background:currentColor;position:relative;overflow:hidden}
.hero-scroll i::after{content:"";position:absolute;top:-50%;left:0;width:100%;height:50%;background:var(--cyan);animation:scrolldot 1.8s infinite}
@keyframes scrolldot{0%{top:-50%}60%,100%{top:100%}}

/* ============ 01 行业现实 ============ */
.reality{background:transparent}
.reality .section-head{max-width:var(--maxw)}
.reality-grid{
  max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem;
}
.reality-card{
  background:rgba(255,255,255,.55);backdrop-filter:blur(8px);
  border:1px solid var(--line);border-radius:14px;padding:2rem 1.6rem;
  display:flex;flex-direction:column;gap:.7rem;transition:.3s ease;position:relative;overflow:hidden;
}
.reality-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--cyan),var(--cyan-2));transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
.reality-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px -24px rgba(var(--ink-rgb),.4)}
.reality-card:hover::before{transform:scaleX(1)}
.card-no{font-family:var(--serif-en);font-weight:800;font-size:2.2rem;color:var(--cyan);opacity:.35;line-height:1}
.card-tag{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;opacity:.5}
.reality-card h3{font-family:var(--serif-zh);font-weight:700;font-size:1.32rem;line-height:1.3;margin-top:.2rem}
.reality-card p{font-size:.95rem;line-height:1.65;opacity:.72}
.reality-card p b{color:var(--blue);font-weight:700;opacity:1}
.card-key{margin-top:auto;align-self:flex-start;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--cyan);background:var(--ice);border-radius:999px;padding:.5em 1em}

.big-callout{
  max-width:var(--maxw);margin:clamp(3rem,6vh,5rem) auto 0;
  font-family:var(--serif-zh);font-weight:500;line-height:1.5;
  font-size:clamp(1.3rem,2.6vw,2.1rem);
  padding:2.4rem 2.8rem;border-left:4px solid var(--cyan);
  background:rgba(255,255,255,.5);border-radius:0 12px 12px 0;
}
.big-callout cite{display:block;margin-top:1.2rem;font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;opacity:.5;font-style:normal}
.big-callout.dark{background:var(--ink);color:var(--paper);border-color:var(--cyan-2)}

/* ============ 02 核心价值 ============ */
.value{background:linear-gradient(180deg,transparent,rgba(var(--ink-rgb),.03))}
.value-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.value-stat{padding:2rem;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:.8rem}
.value-stat:first-child{border-left:0}
.stat-label{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;opacity:.55}
.stat-num{font-family:var(--serif-en);font-weight:800;font-size:clamp(3.2rem,6vw,5.4rem);line-height:.9;letter-spacing:-.03em;font-feature-settings:"tnum"}
.stat-num i{font-family:var(--serif-zh);font-style:normal;font-size:.34em;color:var(--cyan);margin-left:.1em;font-weight:600}
.value-stat p{font-size:.95rem;line-height:1.6;opacity:.72;margin-top:.4rem}
.value-foot{
  max-width:var(--maxw);margin:3.5rem auto 0;text-align:center;
  font-family:var(--serif-zh);font-size:clamp(1.1rem,2vw,1.6rem);line-height:1.5;opacity:.85;
}
.value-foot b{color:var(--cyan);font-family:var(--serif-en);font-weight:800}

/* ============ 03 范式变化 ============ */
.shift-cols{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;gap:1.8rem;align-items:stretch}
.shift-card{border-radius:16px;padding:2.4rem;display:flex;flex-direction:column}
.shift-card header span{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;opacity:.6}
.shift-card header h3{font-family:var(--serif-zh);font-weight:700;font-size:1.5rem;margin-top:.6rem;line-height:1.25}
.shift-card ul{list-style:none;margin-top:1.8rem;display:flex;flex-direction:column;gap:1rem;flex:1}
.shift-card li{font-size:1rem;line-height:1.5;padding-left:1.5em;position:relative;opacity:.82}
.shift-key{margin-top:1.8rem;font-family:var(--serif-en);font-style:italic;font-size:1.2rem;opacity:.5}
.shift-card.before{background:rgba(var(--ink-rgb),.04);border:1px solid var(--line);opacity:.78}
.shift-card.before li::before{content:"–";position:absolute;left:0;color:var(--ink);opacity:.5}
.shift-card.after{background:var(--ink);color:var(--paper);box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.6)}
.shift-card.after .kicker,.shift-card.after header span{color:var(--cyan-2);opacity:1}
.shift-card.after li::before{content:"✓";position:absolute;left:0;color:var(--cyan-2);font-weight:700}
.shift-card.after .shift-key{color:var(--cyan-2);opacity:.9}
.shift-arrow{display:flex;align-items:center;justify-content:center}
.shift-arrow i{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);position:relative}
.shift-arrow i::after{content:"→";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--cyan);font-size:1.2rem}

/* ============ 横向滚动通用 ============ */
.hscroll{position:relative}
.hscroll-sticky{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;padding-left:var(--pad-x)}
.hscroll-head{position:absolute;top:clamp(4rem,9vh,7rem);left:var(--pad-x);right:var(--pad-x);z-index:3;pointer-events:none}
.hscroll-head .h-section{font-size:clamp(2rem,4.5vw,3.6rem)}
.hscroll-hint{display:inline-block;margin-top:1rem;font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;opacity:.5}
.hscroll-track{display:flex;gap:1.6rem;align-items:center;will-change:transform;padding-right:6vw}
.hpanel{flex:0 0 auto;border-radius:18px}

/* 工作流面板 */
#workflow{background:linear-gradient(180deg,rgba(var(--ink-rgb),.03),transparent)}
.hpanel-stage{
  width:min(46vw,460px);height:min(58vh,520px);padding:3rem;color:var(--paper);
  display:flex;flex-direction:column;justify-content:flex-end;gap:1rem;position:relative;overflow:hidden;
}
.hpanel-stage .stage-en{font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;opacity:.7}
.hpanel-stage h3{font-family:var(--serif-zh);font-weight:900;font-size:clamp(3rem,6vw,5rem);line-height:.95}
.hpanel-stage p{font-family:var(--serif-zh);font-size:1.1rem;line-height:1.5;opacity:.85;max-width:32ch}
.stage-pre{background:linear-gradient(140deg,#0a1f3d,#12395a)}
.stage-visit{background:linear-gradient(140deg,#12395a,#1e6ba8)}
.stage-post{background:linear-gradient(140deg,#0a1f3d,#1a4a6e)}
.hpanel-stage::after{content:"";position:absolute;top:-40%;right:-20%;width:60%;height:140%;background:radial-gradient(circle,rgba(86,204,242,.4),transparent 70%);filter:blur(20px)}

.hpanel-step{
  width:min(30vw,320px);height:min(48vh,440px);padding:2.4rem;
  background:rgba(255,255,255,.7);backdrop-filter:blur(10px);
  border:1px solid var(--line);display:flex;flex-direction:column;gap:1rem;transition:.3s;
}
.hpanel-step:hover{box-shadow:0 24px 50px -24px rgba(var(--ink-rgb),.4);transform:translateY(-4px)}
.step-no{font-family:var(--serif-en);font-weight:800;font-size:3.4rem;color:var(--cyan);opacity:.4;line-height:1}
.hpanel-step h4{font-family:var(--serif-zh);font-weight:700;font-size:1.7rem;margin-top:auto}
.hpanel-step p{font-size:1rem;line-height:1.6;opacity:.74}

.hpanel-end{
  width:min(46vw,500px);height:min(58vh,520px);padding:3.2rem;
  background:var(--ink);color:var(--paper);display:flex;flex-direction:column;justify-content:center;gap:1.4rem;
}
.hpanel-end .kicker{color:var(--cyan-2)}
.hpanel-end h3{font-family:var(--serif-zh);font-weight:900;font-size:clamp(1.8rem,3.5vw,2.8rem);line-height:1.2}
.hpanel-end .hend-note{font-family:var(--serif-en);font-style:italic;opacity:.7;font-size:1.2rem}
.hpanel-end .btn{align-self:flex-start;background:var(--cyan);color:#fff}

/* ============ 05 核心模块 ============ */
.modules .module-row{
  max-width:var(--maxw);margin:0 auto clamp(4rem,8vh,7rem);
  display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(2rem,5vw,5rem);align-items:center;
}
.modules .module-row.reverse{grid-template-columns:1.1fr 1fr}
.modules .module-row.reverse .module-text{order:2}
.modules .module-row.reverse .module-figure{order:1}
.module-title{font-family:var(--serif-zh);font-weight:900;font-size:clamp(2rem,3.6vw,3.2rem);line-height:1.1;margin-bottom:1.2rem}
.module-lead{font-family:var(--serif-zh);font-size:clamp(1.05rem,1.6vw,1.35rem);line-height:1.55;opacity:.85;margin-bottom:1.8rem}
.module-list{list-style:none;display:flex;flex-direction:column;gap:.9rem;margin-bottom:1.8rem}
.module-list li{font-size:1rem;line-height:1.55;padding-left:1.6em;position:relative;opacity:.8}
.module-list li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:50%;background:var(--cyan)}
.module-quote{
  font-family:var(--serif-zh);font-size:1.02rem;line-height:1.6;
  padding:1.2rem 1.4rem;border-left:3px solid var(--cyan);background:rgba(var(--ink-rgb),.04);border-radius:0 8px 8px 0;opacity:.9;
}
.module-figure{border-radius:16px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.5);border:1px solid rgba(255,255,255,.4);position:relative}
.module-figure img{width:100%;height:auto;display:block}
.module-figure figcaption{position:absolute;left:0;bottom:0;padding:.6rem 1rem;font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.55),transparent);width:100%}

/* ============ 06 设计哲学 ============ */
/* ---- 06 技术架构（深色） ---- */
.architecture{background:var(--ink);color:var(--paper);overflow:hidden}
.architecture .section-head .kicker{color:var(--cyan-2)}
.arch-stack{max-width:var(--maxw);margin:0 auto;display:flex;flex-direction:column;gap:1.1rem}
.arch-band{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:1.3rem 1.5rem}
.arch-band-label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan-2);opacity:.9;margin-bottom:1rem}
.arch-band-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.75rem}
.arch-band-grid.four{grid-template-columns:repeat(4,1fr)}
.arch-chip{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:.85rem .95rem;display:flex;flex-direction:column;gap:.3rem}
.arch-chip b{font-family:var(--sans-zh);font-weight:700;font-size:.92rem}
.arch-chip span{font-size:.72rem;line-height:1.45;opacity:.6;font-family:var(--mono);letter-spacing:.01em}
.arch-flow{display:flex;align-items:stretch;gap:.4rem;overflow-x:auto;padding:.2rem 0 1rem;scrollbar-width:thin}
.arch-stage{flex:1 0 0;min-width:178px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:1.25rem 1.15rem;display:flex;flex-direction:column;gap:.6rem}
.arch-stage.core{background:linear-gradient(160deg,rgba(45,156,219,.24),rgba(86,204,242,.06));border-color:var(--cyan)}
.arch-stage-no{font-family:var(--serif-en);font-weight:800;font-size:1.5rem;color:var(--cyan-2);line-height:1}
.arch-stage h3{font-family:var(--serif-zh);font-weight:700;font-size:1.1rem;line-height:1.25}
.arch-stage ul{list-style:none;display:flex;flex-direction:column;gap:.4rem;margin-top:.1rem}
.arch-stage li{font-size:.8rem;line-height:1.45;opacity:.78;padding-left:.9rem;position:relative}
.arch-stage li::before{content:"";position:absolute;left:0;top:.5em;width:4px;height:4px;border-radius:50%;background:var(--cyan-2);opacity:.85}
.arch-arrow{flex:0 0 auto;align-self:center;width:15px;height:15px;border-top:2px solid rgba(255,255,255,.42);border-right:2px solid rgba(255,255,255,.42);transform:rotate(45deg)}

/* ---- 07 双流语音（图文左右） ---- */
.ds-split{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(2rem,4vw,4rem);align-items:stretch}
.ds-figure{border-radius:16px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.5);border:1px solid var(--line);background:#fff;display:flex}
.ds-figure img{width:100%;height:100%;object-fit:contain}
.ds-points{display:flex;flex-direction:column;justify-content:space-between;gap:.85rem}
.ds-point{background:rgba(255,255,255,.6);border:1px solid var(--line);border-radius:14px;padding:1.4rem 1.5rem;display:flex;flex-direction:column;gap:.4rem;transition:.3s}
.ds-point:hover{transform:translateY(-4px);box-shadow:0 24px 50px -24px rgba(var(--ink-rgb),.4);border-color:var(--cyan)}
.ds-point .ds-en{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.ds-point h3{font-family:var(--serif-zh);font-weight:700;font-size:1.3rem;line-height:1.25}
.ds-point p{font-size:.92rem;line-height:1.6;opacity:.75}

/* ============ 07 多智能体 ============ */
.agents-layout{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2rem,4vw,4rem);align-items:center}
.agents-cards{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem}
.agent-card{
  background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:14px;padding:1.8rem;
  display:flex;flex-direction:column;gap:.5rem;transition:.3s;
}
.agent-card:hover{transform:translateY(-5px);box-shadow:0 24px 50px -24px rgba(var(--ink-rgb),.4);border-color:var(--cyan)}
.agent-en{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan)}
.agent-card h3{font-family:var(--serif-zh);font-weight:700;font-size:1.7rem}
.agent-card p{font-size:.92rem;line-height:1.55;opacity:.72}
.agents-figure{border-radius:16px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.5);border:1px solid rgba(255,255,255,.4)}
.agents-foot{max-width:var(--maxw);margin:3rem auto 0;text-align:center;font-family:var(--serif-zh);font-size:clamp(1.2rem,2.4vw,1.9rem);font-weight:500}

/* ============ 08 差异化 ============ */
.edge-compare{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.edge-card{border-radius:16px;padding:2.4rem}
.edge-card .edge-tag{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;opacity:.6}
.edge-card h3{font-family:var(--serif-zh);font-weight:700;font-size:1.6rem;margin:.6rem 0 1.6rem}
.edge-card ul{list-style:none;display:flex;flex-direction:column;gap:.9rem}
.edge-card li{font-size:1rem;line-height:1.5;padding-left:1.5em;position:relative}
.edge-card.gen1{background:rgba(var(--ink-rgb),.04);border:1px solid var(--line);opacity:.8}
.edge-card.gen1 li::before{content:"–";position:absolute;left:0;opacity:.5}
.edge-card.gen2{background:var(--ink);color:var(--paper);box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.6)}
.edge-card.gen2 .edge-tag{color:var(--cyan-2);opacity:1}
.edge-card.gen2 li::before{content:"✓";position:absolute;left:0;color:var(--cyan-2)}
.edge-figure{max-width:var(--maxw);margin:2.6rem auto 0;border-radius:16px;overflow:hidden;box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.5);position:relative;border:1px solid rgba(255,255,255,.4)}
.edge-figure img{width:100%}
.edge-figure figcaption{position:absolute;left:0;bottom:0;padding:.6rem 1rem;font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#fff;background:linear-gradient(0deg,rgba(0,0,0,.55),transparent);width:100%}

/* ============ 产品矩阵横向 ============ */
.matrix-h{background:linear-gradient(180deg,rgba(var(--ink-rgb),.04),transparent)}
.ver-panel{
  width:min(30vw,330px);height:min(56vh,500px);padding:2.6rem;
  background:rgba(255,255,255,.7);backdrop-filter:blur(10px);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:.5rem;position:relative;
}
.ver-no{font-family:var(--serif-en);font-weight:800;font-size:2.6rem;line-height:1;color:var(--ink)}
.ver-en{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.ver-panel h4{font-family:var(--serif-zh);font-weight:700;font-size:1.9rem;margin:.5rem 0 1rem}
.ver-audience{font-family:var(--sans-zh);font-size:.94rem;line-height:1.5;color:var(--ink);background:rgba(45,156,219,.1);border-left:3px solid var(--cyan);padding:.6em .85em;border-radius:0 8px 8px 0;margin:0 0 .4rem}
.ver-panel ul{list-style:none;display:flex;flex-direction:column;gap:.8rem;margin-top:auto}
.ver-panel li{font-size:.98rem;line-height:1.4;padding-left:1.3em;position:relative;opacity:.8}
.ver-panel li::before{content:"›";position:absolute;left:0;color:var(--cyan);font-weight:700}
.ver-panel.highlight{background:var(--ink);color:var(--paper);box-shadow:0 30px 70px -30px rgba(var(--ink-rgb),.6)}
.ver-panel.highlight .ver-no{color:#fff}
.ver-panel.highlight .ver-en{color:var(--cyan-2)}
.ver-panel.highlight li::before{color:var(--cyan-2)}
.ver-panel.highlight .ver-audience{background:rgba(86,204,242,.16);color:var(--paper);border-left-color:var(--cyan-2)}
.ver-badge{position:absolute;top:-12px;left:2.6rem;background:var(--cyan);color:#fff;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;padding:.4em .9em;border-radius:999px}
.base-panel{width:min(34vw,380px);background:linear-gradient(140deg,rgba(var(--ink-rgb),.06),rgba(45,156,219,.06))}
.base-list li{padding-left:0}
.base-list li::before{content:none}
.base-list b{color:var(--cyan);font-family:var(--mono);font-size:11px;letter-spacing:.1em;margin-right:.5em}

/* ============ 10 企业级底座 ============ */
.infra{background:linear-gradient(180deg,transparent,rgba(var(--ink-rgb),.03))}
.infra-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.infra-stat{background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:14px;padding:2.2rem;text-align:center;transition:.3s}
.infra-stat:hover{transform:translateY(-5px);box-shadow:0 24px 50px -24px rgba(var(--ink-rgb),.4)}
.infra-stat strong{font-family:var(--serif-en);font-weight:800;font-size:clamp(2.6rem,5vw,4rem);line-height:1;display:block}
.infra-stat strong i{font-family:var(--serif-zh);font-style:normal;font-size:.32em;color:var(--cyan);font-weight:600}
.infra-stat span{font-size:.92rem;opacity:.7;display:block;margin-top:.8rem;line-height:1.5}

/* ============ 11 愿景 + CTA ============ */
.vision{background:var(--ink);color:var(--paper);overflow:hidden}
.vision-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.vision-title{font-family:var(--serif-zh);font-weight:900;font-size:clamp(2.8rem,6vw,5rem);line-height:1.08;margin:1rem 0 1.6rem}
.vision-lead{font-family:var(--serif-zh);font-size:clamp(1.1rem,1.8vw,1.5rem);line-height:1.6;opacity:.82}
.vision .kicker{color:var(--cyan-2)}
.vision-pills{display:flex;gap:.8rem;margin-top:2rem;flex-wrap:wrap}
.vision-pills span{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;padding:.6em 1.2em;border:1px solid rgba(255,255,255,.25);border-radius:999px;opacity:.85}
.vision-actions{display:flex;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.vision-actions .btn-primary{
  background:linear-gradient(120deg,var(--cyan),var(--cyan-2));color:#fff;font-weight:600;
  box-shadow:0 12px 34px -6px rgba(45,156,219,.6);animation:cta-pulse 2.4s ease-in-out infinite;
}
.vision-actions .btn-primary:hover{
  background:linear-gradient(120deg,var(--cyan-2),var(--cyan));
  transform:translateY(-2px);box-shadow:0 16px 42px -6px rgba(86,204,242,.7);animation:none;
}
.vision-actions .btn-ghost{border-color:rgba(255,255,255,.3);color:var(--paper)}
.vision-actions .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:var(--paper)}
@keyframes cta-pulse{
  0%,100%{box-shadow:0 12px 34px -6px rgba(45,156,219,.5)}
  50%{box-shadow:0 12px 40px -2px rgba(86,204,242,.85)}
}
@media (prefers-reduced-motion:reduce){.vision-actions .btn-primary{animation:none}}
.vision-figure{border-radius:16px;overflow:hidden;box-shadow:0 40px 90px -40px rgba(0,0,0,.7)}
.vision-figure img{width:100%;opacity:.92}

/* ============ 页脚 ============ */
#footer{background:#06152b;color:var(--paper);padding:clamp(3rem,6vh,5rem) var(--pad-x) 2rem}
.footer-top{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1fr 2fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand-row{display:flex;align-items:center;gap:.6rem}
.footer-brand .logo-img{height:2rem}
.footer-brand .logo-mark{color:var(--paper);font-size:2rem}
.footer-brand p{margin-top:1rem;opacity:.6;line-height:1.6;font-size:.92rem}
.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}
.footer-nav h5{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;opacity:.5;margin-bottom:1rem}
.footer-nav a{display:block;font-size:.95rem;opacity:.75;padding:.35rem 0;transition:.2s}
.footer-nav a:hover{opacity:1;color:var(--cyan-2)}
.footer-bottom{max-width:var(--maxw);margin:0 auto;padding-top:1.6rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-family:var(--mono);font-size:11px;letter-spacing:.1em;opacity:.5}

/* ============ 滚动揭示动效（渐进增强：仅 JS 可用时隐藏） ============ */
.js [data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.js [data-reveal].in{opacity:1;transform:none}
.reality-grid [data-reveal]:nth-child(2){transition-delay:.08s}
.reality-grid [data-reveal]:nth-child(3){transition-delay:.16s}
.reality-grid [data-reveal]:nth-child(4){transition-delay:.24s}
.value-grid [data-reveal]:nth-child(2){transition-delay:.1s}
.value-grid [data-reveal]:nth-child(3){transition-delay:.2s}
.value-grid [data-reveal]:nth-child(4){transition-delay:.3s}
.agents-cards [data-reveal]:nth-child(2){transition-delay:.08s}
.agents-cards [data-reveal]:nth-child(3){transition-delay:.16s}
.agents-cards [data-reveal]:nth-child(4){transition-delay:.24s}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:3rem}
  .hero-visual{max-width:560px}
  .hero-stat-float{left:auto;right:1rem}
  .reality-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .value-stat{border-left:0;border-top:1px solid var(--line);padding:1.6rem 0}
  .value-stat:first-child,.value-stat:nth-child(2){border-top:0}
  .agents-layout{grid-template-columns:1fr}
  .infra-grid{grid-template-columns:repeat(2,1fr)}
  .arch-band-grid{grid-template-columns:repeat(3,1fr)}
  .arch-band-grid.four{grid-template-columns:repeat(2,1fr)}
  .ds-split{grid-template-columns:1fr}
}
@media (max-width:768px){
  :root{--pad-x:5vw}
  .nav-links,.nav-right{display:none}
  .nav-burger{display:flex}
  .hero-chrome{display:none}
  .modules .module-row,.modules .module-row.reverse{grid-template-columns:1fr;gap:2rem}
  .modules .module-row.reverse .module-text{order:2}
  .modules .module-row.reverse .module-figure{order:1}
  .shift-cols{grid-template-columns:1fr;gap:1.4rem}
  .shift-arrow i{transform:rotate(90deg)}
  .edge-compare{grid-template-columns:1fr}
  .vision-inner{grid-template-columns:1fr;gap:2.4rem}
  .arch-band-grid,.arch-band-grid.four{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:repeat(3,1fr);gap:1rem}
  /* 移动端横向滚动降级为普通横向拖动 */
  .hscroll{height:auto!important}
  .hscroll-sticky{position:relative;height:auto;padding:5rem 0 5rem var(--pad-x)}
  .hscroll-head{position:relative;top:auto;left:auto;right:auto;margin-bottom:2rem;padding-right:var(--pad-x)}
  .hscroll-track{transform:none!important;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:1.5rem;-webkit-overflow-scrolling:touch}
  .hscroll-track>*{scroll-snap-align:start}
  .hpanel-stage,.hpanel-step,.hpanel-end,.ver-panel,.base-panel{height:auto;min-height:340px;width:78vw}
}
@media (max-width:520px){
  .reality-grid,.value-grid,.infra-grid{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important}
}