/* =========================================================
   鸿拓商贸 · 校园综合服务平台 — 官网样式
   Aesthetic: Editorial campus-tech — warm paper + deep ink
   + cobalt primary + coral accent
   ========================================================= */

:root{
  /* palette */
  --paper:#F2EEE4;
  --paper-2:#ECE6D8;
  --paper-3:#E4DCC8;
  --ink:#15130F;
  --ink-2:#2A2620;
  --ink-soft:#5A5447;
  --ink-mute:#8A8472;

  --cobalt:#1F3A8A;        /* primary deep blue */
  --cobalt-2:#2D4FB0;
  --cobalt-soft:#E6EBF8;
  --coral:#E85A3C;         /* warm accent */
  --coral-2:#F0B27A;
  --gold:#C9A24B;

  --line:rgba(21,19,15,.12);
  --line-2:rgba(21,19,15,.06);

  /* type */
  --f-display:"Fraunces","Noto Serif SC",Georgia,serif;
  --f-body:"Manrope","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;

  /* layout */
  --container:1240px;
  --gutter:clamp(20px,5vw,48px);
  --radius:18px;
  --radius-lg:28px;

  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--f-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--cobalt);color:var(--paper)}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

/* ---------------- Icons (SVG sprite) ---------------- */
.scard__icon,.cm__icon,.hub__node svg{
  width:24px;height:24px;fill:none;stroke:currentColor;
  stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;
  display:block;flex-shrink:0;
}
.cm__icon{width:22px;height:22px;color:var(--cobalt)}
.hub__node svg{width:24px;height:24px;color:var(--ink)}
.scard__icon{width:40px;height:40px;color:var(--ink);stroke-width:1.5}
.scard--accent .scard__icon{color:var(--coral-2)}

/* ---------------- Buttons ---------------- */
.btn{
  --pad-y:14px;--pad-x:26px;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:var(--pad-y) var(--pad-x);
  border-radius:999px;
  font-weight:600;font-size:15px;letter-spacing:.01em;
  transition:transform .35s var(--ease),background .35s var(--ease),color .35s var(--ease),box-shadow .35s var(--ease);
  white-space:nowrap;
  position:relative;
}
.btn--sm{--pad-y:10px;--pad-x:18px;font-size:14px}
.btn--block{width:100%}
.btn--primary{background:var(--ink);color:var(--paper)}
.btn--primary:hover{background:var(--cobalt);transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(31,58,138,.5)}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}

/* ---------------- NAV ---------------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .4s var(--ease),box-shadow .4s var(--ease),backdrop-filter .4s var(--ease);
}
.nav.is-scrolled{
  background:rgba(242,238,228,.82);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  box-shadow:0 1px 0 var(--line);
}
.nav__inner{
  max-width:var(--container);margin:0 auto;
  padding:18px var(--gutter);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo__mark{display:block;line-height:0;border-radius:9px}
.logo__text{display:flex;flex-direction:column;line-height:1.05}
.logo__cn{font-family:var(--f-display);font-weight:700;font-size:18px;letter-spacing:.02em}
.logo__en{font-size:9.5px;letter-spacing:.22em;color:var(--ink-mute);font-weight:600;text-transform:uppercase;margin-top:2px}

.nav__links{display:flex;gap:6px;align-items:center}
.nav__links a{
  padding:8px 14px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--ink-soft);
  transition:color .25s,background .25s;
}
.nav__links a:hover{color:var(--ink);background:rgba(21,19,15,.05)}

.nav__actions{display:flex;align-items:center;gap:12px}
.nav__burger{display:none;flex-direction:column;gap:5px;padding:10px;border-radius:8px}
.nav__burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav__mobile{
  display:none;flex-direction:column;gap:4px;
  padding:8px var(--gutter) 22px;
  background:var(--paper);
  border-top:1px solid var(--line);
}
.nav__mobile.is-open{display:flex}
.nav__mobile a{
  padding:13px 12px;border-radius:10px;font-size:16px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line-2);
}
.nav__mobile a.btn{border:0;color:var(--paper);margin-top:12px}

/* ---------------- HERO ---------------- */
.hero{
  position:relative;
  min-height:100vh;
  padding:140px 0 80px;
  display:flex;align-items:center;
  overflow:hidden;
}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.gridlines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right,var(--line-2) 1px,transparent 1px),
    linear-gradient(to bottom,var(--line-2) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 30%,transparent 80%);
}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.blob--cobalt{
  width:560px;height:560px;background:var(--cobalt);
  top:-120px;right:-100px;opacity:.28;
  animation:float1 16s ease-in-out infinite;
}
.blob--coral{
  width:440px;height:440px;background:var(--coral);
  bottom:-140px;left:-80px;opacity:.22;
  animation:float2 20s ease-in-out infinite;
}
@keyframes float1{0%,100%{transform:translate(0,0)}50%{transform:translate(-40px,30px)}}
@keyframes float2{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-40px)}}

.hero__grain{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.4;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

.hero__inner{position:relative;z-index:3;max-width:920px;margin:0 auto;text-align:center;padding:0 var(--gutter)}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 16px;border-radius:999px;
  background:rgba(21,19,15,.05);border:1px solid var(--line);
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2);
}
.hero__eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(232,90,60,.18);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(1.25);box-shadow:0 0 0 7px rgba(232,90,60,0)}}

.hero__title{
  font-family:var(--f-display);
  font-weight:300;
  font-size:clamp(48px,9vw,124px);
  line-height:.98;letter-spacing:-.02em;
  margin:28px 0 0;
  font-variation-settings:"opsz" 144,"SOFT" 0,"WONK" 0;
}
.hero__title .line{display:block}
.hero__title em{
  font-style:italic;font-weight:600;
  background:linear-gradient(120deg,var(--cobalt) 0%,var(--coral) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}

.hero__sub{
  max-width:680px;margin:32px auto 0;
  font-size:clamp(16px,1.6vw,19px);line-height:1.75;color:var(--ink-soft);
}
.hl{
  color:var(--ink);font-weight:600;
  background:linear-gradient(transparent 62%,rgba(232,90,60,.22) 62%);
  padding:0 2px;
}

.hero__cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:40px}

.hero__meta{
  display:flex;align-items:center;justify-content:center;gap:clamp(20px,4vw,56px);
  margin-top:64px;flex-wrap:wrap;
}
.meta__item{display:flex;flex-direction:column;align-items:center;gap:4px}
.meta__num{
  font-family:var(--f-display);font-weight:600;font-size:clamp(28px,3vw,38px);
  color:var(--ink);line-height:1;
}
.meta__suffix{font-family:var(--f-display);font-size:clamp(20px,2vw,26px);color:var(--coral);font-weight:600;align-self:flex-start;margin-top:4px}
.meta__label{font-size:13px;color:var(--ink-mute);letter-spacing:.04em}
.meta__sep{width:1px;height:38px;background:var(--line)}

/* floating cards */
.hero__float{position:absolute;inset:0;z-index:2;pointer-events:none}
.card-mini{
  position:absolute;display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.78);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.6);
  padding:12px 16px;border-radius:14px;
  box-shadow:0 20px 40px -20px rgba(21,19,15,.25);
  pointer-events:auto;
  animation:floatCard 7s ease-in-out infinite;
}
.card-mini .cm__body{display:flex;flex-direction:column;line-height:1.2}
.card-mini .cm__icon{color:var(--cobalt)}
.card-mini b{font-size:13.5px;font-weight:700}
.card-mini span{font-size:11px;color:var(--ink-mute)}
.card-mini--1{top:22%;left:6%;animation-delay:0s}
.card-mini--2{top:30%;right:7%;animation-delay:-1.5s}
.card-mini--3{bottom:24%;left:9%;animation-delay:-3s}
.card-mini--4{bottom:30%;right:6%;animation-delay:-4.5s}
@keyframes floatCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

.hero__scroll{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;z-index:3;
  font-size:10px;letter-spacing:.3em;color:var(--ink-mute);font-weight:600;
}
.scroll__line{width:1px;height:46px;background:linear-gradient(var(--ink),transparent);position:relative;overflow:hidden}
.scroll__line::after{content:"";position:absolute;top:0;left:0;width:100%;height:40%;background:var(--coral);animation:scrollDown 2s ease-in-out infinite}
@keyframes scrollDown{0%{transform:translateY(-100%)}100%{transform:translateY(280%)}}

/* ---------------- TICKER ---------------- */
.ticker{
  background:var(--ink);color:var(--paper);
  padding:18px 0;overflow:hidden;white-space:nowrap;
  border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);
}
.ticker__track{display:inline-flex;align-items:center;gap:32px;animation:tickerScroll 38s linear infinite}
.ticker__track span{font-family:var(--f-display);font-size:22px;font-weight:500;letter-spacing:.01em;opacity:.92}
.ticker__track .tstar{
  width:7px;height:7px;background:var(--coral);
  transform:rotate(45deg);opacity:1;
  display:inline-block;flex-shrink:0;
}
@keyframes tickerScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------------- SECTION COMMON ---------------- */
.section{padding:clamp(90px,12vh,150px) 0;position:relative}
.section__head{max-width:880px;margin:0 auto 64px;text-align:center}
.section__head[style*="--align:left"]{margin-left:0;margin-right:0;text-align:left}
.section__index{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.2em;
  text-transform:uppercase;color:var(--coral);margin-bottom:18px;
}
.section__title{
  font-family:var(--f-display);font-weight:400;
  font-size:clamp(32px,5vw,60px);line-height:1.08;letter-spacing:-.015em;color:var(--ink);
}
.section__title em{font-style:italic;font-weight:600;color:var(--cobalt)}

/* ---------------- PROBLEM ---------------- */
.problem__lead{
  max-width:780px;margin:-20px auto 56px;
  font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--ink-soft);text-align:center;
}
.problem__grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.pcard{
  position:relative;background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px 0;overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),background .4s var(--ease);
}
.pcard:hover{transform:translateY(-6px);box-shadow:0 24px 50px -24px rgba(21,19,15,.3);background:#fff}
.pcard__num{
  font-family:var(--f-display);font-size:14px;font-weight:600;letter-spacing:.1em;
  color:var(--coral);
}
.pcard h3{font-family:var(--f-display);font-weight:600;font-size:22px;margin:14px 0 10px;letter-spacing:-.01em}
.pcard p{font-size:14.5px;color:var(--ink-soft);line-height:1.65}
.pcard__viz{height:120px;margin:24px -24px 0;padding:20px;border-top:1px solid var(--line);position:relative;overflow:hidden}

.pcard__viz--scatter span{position:absolute;width:28px;height:28px;border-radius:8px;background:var(--ink-mute);opacity:.4}
.pcard__viz--scatter span:nth-child(1){top:20%;left:8%}
.pcard__viz--scatter span:nth-child(2){top:55%;left:24%;width:20px;height:20px}
.pcard__viz--scatter span:nth-child(3){top:30%;left:46%}
.pcard__viz--scatter span:nth-child(4){top:65%;left:68%;width:24px;height:24px}
.pcard__viz--scatter span:nth-child(5){top:25%;left:84%;width:18px;height:18px}

.pcard__viz--silo{display:flex;align-items:flex-end;justify-content:center;gap:14px;height:100%}
.pcard__viz--silo div{width:46px;background:repeating-linear-gradient(90deg,var(--ink-mute) 0 6px,transparent 6px 12px);opacity:.5;border-radius:4px 4px 0 0}
.pcard__viz--silo div:nth-child(1){height:55%}
.pcard__viz--silo div:nth-child(2){height:80%}
.pcard__viz--silo div:nth-child(3){height:40%}

.pcard__viz--queue{display:flex;align-items:center;gap:8px;height:100%}
.pcard__viz--queue i{display:block;width:24px;height:24px;border-radius:50%;border:2px solid var(--ink-mute);opacity:.5}
.pcard__viz--queue i:nth-child(1){margin-left:6%}
.pcard__viz--queue i:nth-child(2){opacity:.6}
.pcard__viz--queue i:nth-child(3){opacity:.4}
.pcard__viz--queue i:nth-child(4){opacity:.3}

.pcard__viz--chaos{position:relative;height:100%}
.pcard__viz--chaos span{position:absolute;width:20px;height:20px;border-radius:6px;background:var(--ink-mute);opacity:.45}
.pcard__viz--chaos span:nth-child(1){top:15%;left:10%;transform:rotate(12deg)}
.pcard__viz--chaos span:nth-child(2){top:55%;left:28%;transform:rotate(-20deg)}
.pcard__viz--chaos span:nth-child(3){top:30%;left:48%;transform:rotate(30deg);background:var(--coral);opacity:.7}
.pcard__viz--chaos span:nth-child(4){top:65%;left:62%;transform:rotate(-8deg)}
.pcard__viz--chaos span:nth-child(5){top:20%;left:78%;transform:rotate(22deg)}
.pcard__viz--chaos span:nth-child(6){top:60%;left:88%;transform:rotate(-15deg);width:16px;height:16px}

/* ---------------- PLATFORM ---------------- */
.platform{background:linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%)}
.platform__grid{
  display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(40px,6vw,90px);align-items:center;
}
.platform__copy{font-size:clamp(15px,1.5vw,17px);color:var(--ink-soft);line-height:1.8;margin-top:8px;max-width:540px}
.platform__points{list-style:none;margin-top:40px;display:flex;flex-direction:column;gap:22px;max-width:540px}
.platform__points li{display:flex;gap:18px;align-items:flex-start}
.pp__bullet{
  flex-shrink:0;font-family:var(--f-display);font-weight:600;font-size:14px;
  width:42px;height:42px;border-radius:12px;background:var(--ink);color:var(--paper);
  display:flex;align-items:center;justify-content:center;letter-spacing:.05em;
}
.platform__points b{font-family:var(--f-display);font-weight:600;font-size:18px;display:block;margin-bottom:4px}
.platform__points p{font-size:14.5px;color:var(--ink-soft);line-height:1.6}

/* hub viz */
.platform__right{display:flex;justify-content:center}
.hub{
  position:relative;width:min(440px,90%);aspect-ratio:1;
  display:flex;align-items:center;justify-content:center;
}
.hub__core{
  position:relative;z-index:4;
  width:34%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,var(--cobalt-2),var(--cobalt));
  color:var(--paper);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-family:var(--f-display);font-weight:700;font-size:clamp(22px,3vw,32px);line-height:1;
  box-shadow:0 30px 60px -20px rgba(31,58,138,.6),inset 0 -8px 20px rgba(0,0,0,.2);
  animation:corePulse 4s ease-in-out infinite;
}
.hub__core-sub{font-family:var(--f-body);font-weight:500;font-size:11px;letter-spacing:.2em;opacity:.85;margin-top:6px;text-transform:uppercase}
@keyframes corePulse{0%,100%{box-shadow:0 30px 60px -20px rgba(31,58,138,.6),inset 0 -8px 20px rgba(0,0,0,.2)}50%{box-shadow:0 30px 80px -16px rgba(31,58,138,.8),inset 0 -8px 20px rgba(0,0,0,.2)}}
.hub__ring{position:absolute;border-radius:50%;border:1px dashed var(--line)}
.hub__ring--1{width:62%;aspect-ratio:1;animation:spin 40s linear infinite}
.hub__ring--2{width:100%;aspect-ratio:1;border-style:solid;border-color:var(--line-2);animation:spin 60s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.hub__node{
  position:absolute;width:54px;height:54px;border-radius:50%;
  background:var(--paper);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 24px -10px rgba(21,19,15,.3);
  top:50%;left:50%;
  transform:translate(-50%,-50%) rotate(var(--ang)) translateY(calc(-1 * (50% + 110px))) rotate(calc(-1 * var(--ang)));
}
.hub__node{transition:transform .4s var(--ease)}
.hub:hover .hub__node{transform:translate(-50%,-50%) rotate(var(--ang)) translateY(calc(-1 * (50% + 122px))) rotate(calc(-1 * var(--ang)))}

/* ---------------- SCENARIOS ---------------- */
.scenarios__grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  grid-auto-rows:1fr;gap:18px;
}
.scard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  position:relative;overflow:hidden;
}
.scard:hover{transform:translateY(-6px);box-shadow:0 28px 60px -28px rgba(21,19,15,.3);border-color:var(--cobalt)}
.scard--lg{grid-column:span 2}
.scard__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:auto}
.scard__icon{margin-bottom:18px}
.scard--lg .scard__icon,.scard--accent .scard__icon{margin-bottom:14px}
.scard__tag{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--coral);background:rgba(232,90,60,.1);padding:5px 10px;border-radius:999px}
.scard__tag--solid{background:var(--coral);color:#fff}
.scard h3{font-family:var(--f-display);font-weight:600;font-size:clamp(20px,2vw,24px);margin:6px 0 10px;letter-spacing:-.01em}
.scard p{font-size:14.5px;color:var(--ink-soft);line-height:1.65}
.scard__chips{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}
.scard__chips span{font-size:12px;font-weight:500;padding:5px 11px;border-radius:999px;background:var(--paper-2);color:var(--ink-2)}
.scard--accent{background:linear-gradient(155deg,#1F2440 0%,var(--cobalt) 100%);color:var(--paper);border-color:transparent}
.scard--accent h3{color:var(--paper)}
.scard--accent p{color:rgba(242,238,228,.78)}
.scard--accent .scard__chips span{background:rgba(255,255,255,.12);color:var(--paper)}
.scard--accent:hover{border-color:transparent}

/* ---------------- VALUE / TABS ---------------- */
.value{background:var(--paper-2)}
.value__wrap{
  display:grid;grid-template-columns:300px 1fr;gap:clamp(28px,4vw,56px);align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:clamp(28px,3vw,40px);
}
.value__tabs{display:flex;flex-direction:column;gap:6px;position:relative;border-right:1px solid var(--line);padding-right:8px}
.vtabs__btn{
  display:flex;align-items:center;gap:12px;
  padding:16px 18px;border-radius:14px;
  font-size:15.5px;font-weight:500;color:var(--ink-soft);
  text-align:left;transition:color .3s,background .3s;
}
.vtabs__btn:hover{color:var(--ink);background:var(--paper-2)}
.vtabs__btn.is-active{color:var(--ink);font-weight:700}
.vtabs__num{font-family:var(--f-display);font-size:13px;color:var(--coral);font-weight:600}
.vtabs__indicator{
  position:absolute;left:0;width:3px;height:50px;background:var(--coral);border-radius:3px;
  transition:transform .45s var(--ease);
  pointer-events:none;
}

.value__panels{position:relative;min-height:280px}
.vpanel{display:none;opacity:0;transform:translateY(10px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.vpanel.is-active{display:block;opacity:1;transform:none;animation:fadeUp .5s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.vpanel h3{font-family:var(--f-display);font-weight:600;font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;letter-spacing:-.01em}
.vpanel>p{font-size:16px;color:var(--ink-soft);line-height:1.7;margin-bottom:24px;max-width:560px}
.vpanel__list{list-style:none;display:grid;gap:14px}
.vpanel__list li{
  display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:baseline;
  padding-bottom:14px;border-bottom:1px solid var(--line-2);
}
.vpanel__list li:last-child{border-bottom:0}
.vpanel__list b{font-family:var(--f-display);font-weight:600;font-size:15px;color:var(--cobalt)}
.vpanel__list li p{font-size:14.5px;color:var(--ink-soft);line-height:1.55}

/* ---------------- ARCHITECTURE ---------------- */
.arch__grid{display:flex;flex-direction:column;gap:0;max-width:1080px;margin:0 auto}
.arch__layer{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 30px;position:relative;
}
.arch__layer-tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.16em;color:var(--ink-mute);text-transform:uppercase;margin-bottom:18px}
.arch__layer--mid{background:var(--cobalt);color:var(--paper);border-color:transparent}
.arch__layer--mid .arch__layer-tag{color:rgba(242,238,228,.7)}
.arch__chips{display:flex;flex-wrap:wrap;gap:9px}
.arch__chips span{font-size:13.5px;font-weight:500;padding:8px 14px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);border:1px solid var(--line-2)}
.arch__chips--dark span{background:rgba(21,19,15,.05)}
.arch__caps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.arch__caps div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:14px 16px}
.arch__caps b{display:block;font-family:var(--f-display);font-weight:600;font-size:15px;margin-bottom:4px}
.arch__caps p{font-size:12.5px;color:rgba(242,238,228,.75);line-height:1.4}
.arch__connector{display:flex;justify-content:center;padding:6px 0}
.arch__connector span{width:2px;height:30px;background:var(--line);position:relative}
.arch__connector span::before,.arch__connector span::after{content:"";position:absolute;left:50%;transform:translateX(-50%);width:8px;height:8px;border-radius:50%;background:var(--coral)}
.arch__connector span::before{top:-4px}
.arch__connector span::after{bottom:-4px;background:var(--ink)}

.arch__feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:56px}
.afeat{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:transform .35s var(--ease),background .35s var(--ease);
}
.afeat:hover{transform:translateY(-4px);background:#fff}
.afeat__num{font-family:var(--f-display);font-style:italic;font-weight:600;font-size:16px;color:var(--coral)}
.afeat h4{font-family:var(--f-display);font-weight:600;font-size:20px;margin:10px 0 8px;letter-spacing:-.01em}
.afeat p{font-size:14px;color:var(--ink-soft);line-height:1.6}

/* ---------------- STATS ---------------- */
.stats{padding:clamp(70px,9vh,110px) 0;background:var(--ink);color:var(--paper)}
.stats__band{
  display:grid;grid-template-columns:repeat(7,auto);gap:0;align-items:center;justify-content:center;
}
.stat{padding:0 clamp(24px,4vw,56px);text-align:center}
.stat__num{display:inline-flex;align-items:baseline;gap:2px;font-family:var(--f-display);font-weight:600;font-size:clamp(38px,5vw,68px);line-height:1}
.stat__num i{font-style:normal;font-size:.42em;color:var(--coral);font-weight:600;margin-left:2px;align-self:flex-start;margin-top:.3em}
.stat__label{display:block;font-size:13px;color:rgba(242,238,228,.6);letter-spacing:.06em;margin-top:10px}
.stat__div{width:1px;height:60px;background:rgba(255,255,255,.12)}

/* ---------------- ABOUT ---------------- */
.about__inner{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(40px,6vw,90px);align-items:start}
.about__left .section__title{margin-top:18px}
.about__right p{font-size:clamp(16px,1.6vw,18px);color:var(--ink-soft);line-height:1.8}
.about__lead{font-family:var(--f-display);font-weight:400;font-size:clamp(20px,2.2vw,26px)!important;color:var(--ink)!important;line-height:1.5!important;margin-bottom:22px}
.about__pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.about__pillars div{padding:22px 18px;background:var(--paper-2);border:1px solid var(--line);border-radius:14px;text-align:center}
.about__pillars b{display:block;font-family:var(--f-display);font-size:13px;font-weight:700;color:var(--coral);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.about__pillars span{font-family:var(--f-display);font-weight:600;font-size:17px;color:var(--ink)}

/* ---------------- CTA ---------------- */
.cta{padding-bottom:clamp(90px,12vh,150px)}
.cta__card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(155deg,#15130F 0%,#1F2440 60%,var(--cobalt) 130%);
  color:var(--paper);padding:clamp(40px,6vw,80px);
}
.cta__glow{position:absolute;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(232,90,60,.35),transparent 60%);top:-200px;right:-150px;filter:blur(40px);pointer-events:none}
.cta__content{position:relative;z-index:2;max-width:640px;margin:0 auto;text-align:center}
.section__index--light{color:var(--coral-2)}
.cta__title{font-family:var(--f-display);font-weight:400;font-size:clamp(34px,5vw,58px);line-height:1.05;letter-spacing:-.02em;margin-bottom:18px}
.cta__title em{font-style:italic;font-weight:600;color:var(--coral-2)}
.cta__sub{font-size:clamp(15px,1.5vw,17px);color:rgba(242,238,228,.78);line-height:1.7;margin-bottom:36px;max-width:520px;margin-left:auto;margin-right:auto}

.cta__form{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:24px}
.cta__form .field{position:relative}
.cta__form .field:nth-child(3){grid-column:span 2}
.cta__form .field input{
  width:100%;padding:18px 18px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);border-radius:12px;
  color:var(--paper);font-size:15px;font-family:inherit;
  transition:border-color .3s,background .3s;
}
.cta__form .field input:focus{outline:none;border-color:var(--coral);background:rgba(255,255,255,.1)}
.cta__form .field label{
  position:absolute;left:18px;top:18px;font-size:15px;color:rgba(242,238,228,.5);
  pointer-events:none;transition:.25s var(--ease);transform-origin:left center;
}
.cta__form .field input:focus+label,
.cta__form .field input:not(:placeholder-shown)+label{
  transform:translateY(-26px) scale(.78);color:var(--coral-2);
}
.cta__form .btn--block{grid-column:span 2;background:var(--coral);color:#fff}
.cta__form .btn--block:hover{background:#fff;color:var(--ink)}
.cta__note{grid-column:span 2;font-size:13.5px;color:var(--coral-2);min-height:20px;font-weight:500}
.cta__contact{font-size:14px;color:rgba(242,238,228,.6)}
.cta__contact a{color:var(--paper);font-weight:600;border-bottom:1px solid rgba(242,238,228,.3)}
.cta__contact a:hover{color:var(--coral-2);border-color:var(--coral-2)}
.cta__contact-sep{margin:0 10px;opacity:.5}

/* ---------------- FOOTER ---------------- */
.footer{background:#0E0D0B;color:var(--paper);padding-top:80px}
.footer__inner{display:grid;grid-template-columns:1.3fr 2fr;gap:clamp(40px,5vw,80px);padding-bottom:60px}
.logo--light .logo__cn{color:var(--paper)}
.logo--light .logo__en{color:rgba(242,238,228,.5)}
.footer__tag{margin-top:22px;font-size:14px;color:rgba(242,238,228,.55);line-height:1.7;max-width:340px}
.footer__cols{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.fcol h5{font-family:var(--f-display);font-weight:600;font-size:14px;letter-spacing:.04em;margin-bottom:18px;color:var(--coral-2)}
.fcol a{display:block;font-size:14px;color:rgba(242,238,228,.65);padding:6px 0;transition:color .25s}
.fcol a:hover{color:var(--paper)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0}
.footer__bottom-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:rgba(242,238,228,.5)}
.footer__links{display:flex;gap:20px}
.footer__links a:hover{color:var(--paper)}

/* ---------------- REVEAL ANIM ---------------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}
.reveal[data-delay="2"]{transition-delay:.2s}
.reveal[data-delay="3"]{transition-delay:.3s}
.reveal[data-delay="4"]{transition-delay:.4s}
.reveal[data-delay="5"]{transition-delay:.5s}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width:1024px){
  .nav__links{display:none}
  .nav__burger{display:flex}
  .nav__actions .btn{display:none}
  .problem__grid{grid-template-columns:repeat(2,1fr)}
  .scenarios__grid{grid-template-columns:repeat(2,1fr)}
  .scard--lg{grid-column:span 2}
  .platform__grid{grid-template-columns:1fr}
  .platform__right{order:-1;margin-bottom:20px}
  .hub{width:min(380px,80%)}
  .value__wrap{grid-template-columns:1fr}
  .value__tabs{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);padding-right:0;padding-bottom:8px}
  .vtabs__btn{flex-shrink:0}
  .vtabs__indicator{display:none}
  .arch__caps{grid-template-columns:repeat(2,1fr)}
  .about__inner{grid-template-columns:1fr}
  .footer__inner{grid-template-columns:1fr}
}

@media (max-width:680px){
  :root{--gutter:22px}
  .hero{padding-top:120px;min-height:auto}
  .hero__float{display:none}
  .hero__meta{gap:24px}
  .meta__sep{display:none}
  .problem__grid{grid-template-columns:1fr}
  .scenarios__grid{grid-template-columns:1fr}
  .scard--lg{grid-column:span 1}
  .arch__caps{grid-template-columns:1fr 1fr}
  .arch__feats{grid-template-columns:1fr}
  .stats__band{display:flex;flex-wrap:wrap;justify-content:center;gap:24px 0}
  .stat__div{display:none}
  .stat{padding:0 18px}
  .about__pillars{grid-template-columns:1fr}
  .cta__form{grid-template-columns:1fr}
  .cta__form .field:nth-child(3){grid-column:span 1}
  .cta__form .btn--block{grid-column:span 1}
  .cta__note{grid-column:span 1}
  .footer__cols{grid-template-columns:1fr 1fr}
  .footer__bottom-inner{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}