/* =====================================================================
   拥有科技 OWNTECH — 官网主页样式
   品牌色取自官方标识：橙 #E8501E / 蓝 #1E4A9C
   版式语言：编辑式大标题 / 大量留白 / 细线分隔 / 单一强调色
   ===================================================================== */

:root{
  --ink:        #101113;
  --ink-soft:   #3A3D42;
  --muted:      #71757C;
  --paper:      #FFFFFF;
  --mist:       #F6F4F0;
  --line:       #E4E1D9;
  --line-dark:  rgba(255,255,255,.12);
  --dark:       #0B0B0D;

  --accent:     #E8501E;
  --accent-deep:#C23C0F;
  --brand-blue: #1E4A9C;

  --container:  1320px;
  --gutter:     clamp(20px, 5vw, 64px);
  --radius:     18px;

  --ease:       cubic-bezier(.22,.68,.16,1);
  --font-sans:  "Inter", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:  "SFMono-Regular", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
}

/* ------------------------------ reset ------------------------------ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.nav-open{ overflow:hidden; }
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4,p,dl,dd,figure,ol,li{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
::selection{ background:var(--accent); color:#fff; }
:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

.container{
  width:min(var(--container), 100% - var(--gutter) * 2);
  margin-inline:auto;
}
.skip-link{
  position:fixed; top:-100px; left:16px; z-index:200;
  padding:10px 18px; background:var(--ink); color:#fff; border-radius:8px;
  transition:top .2s;
}
.skip-link:focus{ top:16px; }

/* --------------------------- scroll progress ----------------------- */
.scroll-progress{
  position:fixed; inset:0 0 auto 0; height:2px; z-index:120;
  background:transparent; pointer-events:none;
}
.scroll-progress span{
  display:block; height:100%; width:0;
  background:linear-gradient(90deg, var(--accent), #FFA57E);
  transition:width .1s linear;
}

/* ------------------------------ header ----------------------------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  color:#fff; background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s var(--ease), color .35s var(--ease),
             border-color .35s var(--ease), backdrop-filter .35s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  backdrop-filter:saturate(180%) blur(18px);
  color:var(--ink);
  border-bottom-color:var(--line);
}
body.nav-open .site-header{ background:#fff; color:var(--ink); border-bottom-color:var(--line); }

.header-inner{
  display:flex; align-items:center; gap:clamp(16px, 3vw, 48px);
  height:78px; transition:height .35s var(--ease);
}
body.is-scrolled .header-inner{ height:70px; }

.brand{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.brand-logo{
  height:36px; width:auto; flex-shrink:0;
  filter:drop-shadow(0 1px 6px rgba(0,0,0,.28));
}
.site-header.is-scrolled .brand-logo,
body.nav-open .brand-logo{ filter:none; }
.brand-text{ display:flex; flex-direction:column; gap:4px; line-height:1; }
.brand-name{ font-size:17px; font-weight:600; letter-spacing:.01em; line-height:1.1; }
.brand-sub{ font-size:8.5px; letter-spacing:.24em; opacity:.55; font-weight:500; line-height:1; }

.primary-nav{
  display:flex; align-items:center; gap:clamp(14px, 2.2vw, 34px);
  margin-inline:auto;
  font-size:14.5px; font-weight:500;
}
.primary-nav a{
  position:relative; padding:6px 0; opacity:.82;
  transition:opacity .25s;
}
.primary-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1.5px;
  background:currentColor; transform:scaleX(0); transform-origin:right;
  transition:transform .35s var(--ease);
}
.primary-nav a:hover{ opacity:1; }
.primary-nav a:hover::after, .primary-nav a.is-active::after{ transform:scaleX(1); transform-origin:left; }
.primary-nav a.is-active{ opacity:1; }

.header-actions{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
.lang-toggle{
  display:inline-flex; align-items:center; justify-content:center;
  height:36px; min-width:44px; padding:0 12px;
  border:1px solid currentColor; border-radius:999px;
  font-size:12px; font-weight:600; letter-spacing:.06em;
  opacity:.85; transition:opacity .25s, background .25s, color .25s;
}
.lang-toggle:hover{ opacity:1; background:var(--accent); border-color:var(--accent); color:#fff; }
html[lang="en"] .lang-zh{ display:none; }
.lang-en{ display:none; }
html[lang="en"] .lang-en{ display:inline; }

.menu-toggle{
  display:none; width:40px; height:40px;
  flex-direction:column; justify-content:center; align-items:center; gap:5px;
}
.menu-toggle span{
  width:20px; height:1.8px; background:currentColor; border-radius:2px;
  transition:transform .3s var(--ease), opacity .3s;
}
body.nav-open .menu-toggle span:first-child{ transform:translateY(3.4px) rotate(45deg); }
body.nav-open .menu-toggle span:last-child{ transform:translateY(-3.4px) rotate(-45deg); }

/* ------------------------------- hero ------------------------------ */
.hero{
  position:relative; min-height:100vh; min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  padding:150px 0 110px;
  background:var(--dark); color:#fff; overflow:hidden;
  isolation:isolate;
}
.hero-art{ position:absolute; inset:0; z-index:-1; }
.orb{
  position:absolute; border-radius:50%; filter:blur(90px); opacity:.5;
  animation:drift 22s ease-in-out infinite alternate;
}
.orb-a{
  width:60vw; height:60vw; max-width:840px; max-height:840px;
  left:-14vw; bottom:-26vw;
  background:radial-gradient(circle at 40% 40%, #F4632B, rgba(232,80,30,0) 68%);
}
.orb-b{
  width:46vw; height:46vw; max-width:620px; max-height:620px;
  right:-8vw; top:-12vw; opacity:.34;
  background:radial-gradient(circle at 50% 50%, #2A5FC8, rgba(30,74,156,0) 70%);
  animation-delay:-8s;
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size:86px 86px;
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%, #000 20%, transparent 78%);
  mask-image:radial-gradient(ellipse 90% 70% at 50% 40%, #000 20%, transparent 78%);
}
.hero-noise{
  position:absolute; inset:0; opacity:.35; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}
.hero-fade{
  position:absolute; inset:auto 0 0 0; height:38%;
  background:linear-gradient(to top, var(--dark), rgba(11,11,13,0));
}
.hero-inner{
  display:grid; grid-template-columns:minmax(0,1fr) 280px;
  gap:clamp(32px, 6vw, 96px); align-items:end;
  position:relative;
}
.hero-content{ max-width:860px; }

.eyebrow{
  display:inline-flex; align-items:center; gap:12px;
  font-size:12px; letter-spacing:.22em; text-transform:uppercase;
  font-weight:500; color:inherit;
}
.eyebrow::before{ content:""; width:28px; height:1.5px; background:var(--accent); flex-shrink:0; }
.hero-eyebrow{ color:rgba(255,255,255,.72); }

.hero-title{
  margin:26px 0 0;
  font-size:clamp(2.9rem, 6.6vw, 6rem);
  line-height:1.02; letter-spacing:-.035em; font-weight:600;
}
.hero-title em{ font-style:normal; color:var(--accent); white-space:nowrap; }
.hero-lede{
  margin-top:30px; max-width:680px;
  font-size:clamp(15px, 1.3vw, 18px); line-height:1.9;
  color:rgba(255,255,255,.66);
  text-wrap:pretty;
}
.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin-top:42px; }

.btn{
  display:inline-flex; align-items:center; gap:12px;
  height:52px; padding:0 26px; border-radius:999px;
  font-size:14.5px; font-weight:600; letter-spacing:.01em;
  transition:transform .3s var(--ease), background .3s, color .3s, border-color .3s, box-shadow .3s;
}
.btn svg{ width:18px; height:18px; transition:transform .35s var(--ease); }
.btn:hover svg{ transform:translateX(4px); }
.btn-solid{ background:var(--accent); color:#fff; }
.btn-solid:hover{ background:var(--accent-deep); transform:translateY(-2px); box-shadow:0 14px 30px -14px rgba(232,80,30,.8); }
.btn-ghost{ border:1px solid rgba(255,255,255,.32); color:#fff; }
.btn-ghost:hover{ background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.6); transform:translateY(-2px); }
.btn-lg{ height:58px; padding:0 32px; font-size:15px; }
.btn-lg:hover svg{ transform:none; }

.hero-rail{
  display:flex; flex-direction:column; gap:26px;
  padding-left:28px; border-left:1px solid rgba(255,255,255,.16);
  padding-bottom:8px;
}
.rail-item{ display:flex; flex-direction:column; gap:5px; }
.rail-num{
  font-size:22px; font-weight:600; letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
}
.rail-label{ font-size:12px; color:rgba(255,255,255,.55); letter-spacing:.04em; }

.scroll-cue{
  position:absolute; left:var(--gutter); bottom:34px;
  display:flex; align-items:center; gap:12px;
  font-family:var(--font-mono); font-size:10px; letter-spacing:.28em;
  color:rgba(255,255,255,.42);
}
.scroll-cue span{
  display:block; width:1px; height:44px; background:rgba(255,255,255,.25);
  position:relative; overflow:hidden;
}
.scroll-cue span::after{
  content:""; position:absolute; inset:0; background:var(--accent);
  transform:translateY(-100%); animation:cue 2.4s var(--ease) infinite;
}
.scroll-cue i{ font-style:normal; }

@keyframes drift{
  from{ transform:translate3d(0,0,0) scale(1); }
  to{ transform:translate3d(4%, -3%, 0) scale(1.08); }
}
@keyframes cue{
  0%{ transform:translateY(-100%); }
  55%,100%{ transform:translateY(100%); }
}

/* ------------------------------ marquee ---------------------------- */
.marquee{
  border-block:1px solid var(--line);
  background:var(--paper); overflow:hidden;
  padding:18px 0;
  -webkit-mask-image:linear-gradient(90deg, transparent 0, #000 48px, #000 calc(100% - 48px), transparent 100%);
  mask-image:linear-gradient(90deg, transparent 0, #000 48px, #000 calc(100% - 48px), transparent 100%);
}
.marquee-track{
  display:flex; align-items:center; gap:clamp(24px, 3vw, 46px);
  width:max-content; flex:none; white-space:nowrap;
  animation:marquee 38s linear infinite;
  font-size:14px; letter-spacing:.14em;
  color:#63676E; font-weight:500; line-height:1.5;
}
.marquee-track span, .marquee-track b{ white-space:nowrap; }
.marquee-track b{ color:var(--accent); font-weight:400; }
.marquee:hover .marquee-track{ animation-play-state:paused; }
@keyframes marquee{
  from{ transform:translateX(0); }
  to{ transform:translateX(-50%); }
}

/* ------------------------------ sections --------------------------- */
.section{ padding-block:clamp(76px, 9.5vw, 136px); }
section[id]{ scroll-margin-top:88px; }

.section-head{
  display:flex; align-items:center; gap:16px;
  margin-bottom:clamp(36px, 5vw, 64px);
}
.section-index{
  font-family:var(--font-mono); font-size:12px; color:var(--accent);
  letter-spacing:.06em;
}
.section-label{
  font-size:11.5px; letter-spacing:.2em; text-transform:uppercase;
  color:var(--muted); font-weight:500;
}
.section-rule{ flex:1; height:1px; background:var(--line); }

.display{
  font-size:clamp(2rem, 4.1vw, 3.4rem);
  line-height:1.14; letter-spacing:-.03em; font-weight:600;
  text-wrap:balance;
}
.link-arrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:14px; font-weight:600;
  padding-bottom:4px; border-bottom:1px solid var(--ink);
  transition:gap .3s var(--ease), color .25s, border-color .25s;
}
.link-arrow svg{ width:17px; height:17px; }
.link-arrow:hover{ gap:16px; color:var(--accent); border-color:var(--accent); }

/* ------------------------------- about ----------------------------- */
.about-grid{
  display:grid; grid-template-columns:1.05fr .95fr;
  gap:clamp(32px, 6vw, 96px); align-items:start;
}
.about-copy{ padding-top:6px; }
.about-copy p{
  font-size:clamp(15px, 1.15vw, 16.5px); line-height:2;
  color:var(--ink-soft); max-width:52ch;
}
.about-copy p + p{ margin-top:18px; }
.about-copy .link-arrow{ margin-top:32px; }

.about-facts{
  display:grid; grid-template-columns:repeat(3, 1fr);
  gap:clamp(20px, 4vw, 56px);
  margin-top:clamp(48px, 6vw, 84px);
  padding-top:28px; border-top:1px solid var(--line);
}
.fact dt{
  font-size:11.5px; letter-spacing:.18em; text-transform:uppercase;
  color:var(--muted); margin-bottom:10px;
}
.fact dd{ font-size:17px; font-weight:500; letter-spacing:-.01em; line-height:1.6; }

/* ----------------------------- statement --------------------------- */
.statement{
  position:relative; overflow:hidden;
  background:var(--dark); color:#fff;
  padding-block:clamp(76px, 9vw, 120px);
}
.statement-mark{
  position:absolute; right:1%; bottom:9%; top:auto; transform:none;
  width:min(640px, 44%); opacity:.05; pointer-events:none; user-select:none;
}
.statement-inner{ position:relative; }
.statement .eyebrow{ color:rgba(255,255,255,.55); }
.statement-text{
  margin-top:26px;
  font-size:clamp(1.9rem, 4.6vw, 3.8rem);
  line-height:1.24; letter-spacing:-.03em; font-weight:600;
}
.statement-sub{
  margin-top:18px; font-size:13px; letter-spacing:.16em; text-transform:uppercase;
  color:rgba(255,255,255,.42);
}

/* ------------------------------ beliefs ---------------------------- */
.beliefs-head{
  display:grid; grid-template-columns:1.1fr .9fr;
  gap:clamp(28px, 5vw, 72px); align-items:end;
  margin-bottom:clamp(40px, 5vw, 64px);
}
.beliefs-lede{
  font-size:clamp(14.5px, 1.1vw, 16px); line-height:1.9;
  color:var(--muted); max-width:42ch; padding-bottom:6px;
}
.beliefs-list{ border-top:1px solid var(--line); }
.belief{
  display:grid; grid-template-columns:110px minmax(0,1fr);
  gap:clamp(16px, 3vw, 44px);
  padding:clamp(26px, 3.2vw, 40px) 0;
  border-bottom:1px solid var(--line);
  transition:padding-left .4s var(--ease);
}
.belief:hover{ padding-left:10px; }
.belief-num{
  font-family:var(--font-mono); font-size:12px; color:var(--accent);
  padding-top:8px;
}
.belief-body h3{
  font-size:clamp(20px, 2vw, 26px); font-weight:600; letter-spacing:-.02em;
}
.belief-body p{
  margin-top:12px; max-width:62ch;
  font-size:clamp(14.5px, 1.1vw, 16px); line-height:1.95; color:var(--muted);
}

/* ------------------------------- values ---------------------------- */
.values{ background:var(--mist); }
.values-head{
  display:grid; grid-template-columns:1.1fr .9fr;
  gap:clamp(28px, 5vw, 72px); align-items:end;
  margin-bottom:clamp(36px, 4.5vw, 56px);
}
.values-lede{
  font-size:clamp(14.5px, 1.1vw, 16px); line-height:1.9;
  color:var(--muted); max-width:40ch; padding-bottom:6px;
}
.values-grid{
  display:grid; grid-template-columns:repeat(6, minmax(0,1fr));
  gap:clamp(12px, 1.4vw, 20px);
}
.value-card{
  grid-column:span 2;
  display:flex; flex-direction:column;
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
  padding:clamp(22px, 2.4vw, 30px);
  min-height:210px;
  transition:transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s, background .45s;
}
.value-card:nth-child(4), .value-card:nth-child(5){ grid-column:span 3; }
.value-card:hover{
  transform:translateY(-5px);
  box-shadow:0 26px 50px -30px rgba(16,17,19,.4);
  border-color:transparent; background:#fff;
}
.value-index{
  font-family:var(--font-mono); font-size:11px; color:var(--accent);
  letter-spacing:.08em;
}
.value-card h3{
  margin-top:auto; font-size:clamp(19px, 1.7vw, 22px); font-weight:600;
  letter-spacing:-.02em;
}
.value-en{
  margin-top:5px; font-size:10.5px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--muted);
}
html[lang="en"] .value-en{ display:none; }
html[lang="en"] .brand-sub{ display:none; }
.value-card p{
  margin-top:14px; font-size:14px; line-height:1.8; color:var(--muted);
}

/* ------------------------------ process ---------------------------- */
.process-head{ margin-bottom:clamp(36px, 4.5vw, 56px); }
.process-grid{
  display:grid; grid-template-columns:repeat(4, 1fr);
  gap:clamp(18px, 2.4vw, 36px);
}
.step{
  padding-top:24px; border-top:2px solid var(--ink);
  position:relative;
}
.step::before{
  content:""; position:absolute; left:0; top:-2px; width:0; height:2px;
  background:var(--accent); transition:width .5s var(--ease);
}
.step:hover::before{ width:100%; }
.step-num{
  font-family:var(--font-mono); font-size:12px; color:var(--accent);
  letter-spacing:.08em;
}
.step h3{ margin-top:14px; font-size:20px; font-weight:600; letter-spacing:-.015em; }
.step p{ margin-top:10px; font-size:14px; line-height:1.8; color:var(--muted); }

/* ------------------------------ contact ---------------------------- */
.contact{ padding-bottom:clamp(60px, 7vw, 100px); }
.contact-grid{
  display:grid; grid-template-columns:1.05fr .95fr;
  gap:clamp(32px, 6vw, 96px); align-items:start;
}
.contact-desc{
  margin-top:24px; max-width:44ch;
  font-size:clamp(15px, 1.1vw, 16.5px); line-height:1.95; color:var(--ink-soft);
}
.contact-copy .btn{ margin-top:36px; }
.contact-info{ border-top:1px solid var(--line); }
.contact-row{
  display:grid; grid-template-columns:120px minmax(0,1fr);
  gap:20px; padding:22px 0; border-bottom:1px solid var(--line);
}
.contact-row dt{
  font-size:11.5px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--muted); padding-top:3px;
}
.contact-row dd{ font-size:15px; line-height:1.8; }
.contact-row dd a{ border-bottom:1px solid var(--line); transition:color .25s, border-color .25s; }
.contact-row dd a:hover{ color:var(--accent); border-color:var(--accent); }

/* ------------------------------ footer ----------------------------- */
.site-footer{
  background:var(--dark); color:rgba(255,255,255,.72);
  padding-top:clamp(56px, 7vw, 88px);
  font-size:14px;
}
.footer-top{
  display:flex; align-items:flex-start; justify-content:space-between;
  gap:24px; padding-bottom:clamp(36px, 4vw, 56px);
  border-bottom:1px solid var(--line-dark);
}
.brand-footer{ color:#fff; }
.brand-footer .brand-logo{ height:38px; filter:none; }
.brand-footer .brand-name{ font-size:19px; }
.footer-tagline{ font-size:clamp(15px, 1.6vw, 19px); color:rgba(255,255,255,.55); }

.footer-cols{
  display:grid; grid-template-columns:1fr 1fr 1.7fr;
  gap:clamp(24px, 4vw, 64px);
  padding-block:clamp(36px, 4vw, 56px);
}
.footer-col{ display:flex; flex-direction:column; gap:12px; }
.footer-col h4{
  font-size:11.5px; letter-spacing:.18em; text-transform:uppercase;
  color:rgba(255,255,255,.42); font-weight:500; margin-bottom:6px;
}
.footer-col a{ color:rgba(255,255,255,.72); transition:color .25s, transform .25s; }
.footer-col a:hover{ color:#fff; transform:translateX(3px); }
.footer-address{ line-height:1.9; color:rgba(255,255,255,.58); }
.footer-note{
  font-size:12.5px; color:rgba(255,255,255,.38);
  padding-bottom:18px; line-height:1.7;
}

.footer-bottom{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; flex-wrap:wrap;
  padding-block:26px; border-top:1px solid var(--line-dark);
  font-size:12.5px; color:rgba(255,255,255,.42);
}
.footer-legal{ display:flex; align-items:center; gap:22px; flex-wrap:wrap; }
.footer-legal a:hover{ color:#fff; }

/* ------------------------------ reveal ----------------------------- */
.reveal{
  opacity:0; transform:translateY(20px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay:var(--d, 0s);
}
.reveal.is-visible{ opacity:1; transform:none; }

/* ------------------------------ responsive ------------------------- */
@media (max-width: 1080px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-rail{
    flex-direction:row; flex-wrap:wrap; gap:28px;
    border-left:0; padding-left:0; border-top:1px solid rgba(255,255,255,.16);
    padding-top:22px; margin-top:8px;
  }
  .rail-item{ min-width:150px; }
  .beliefs-head, .values-head{ grid-template-columns:1fr; align-items:start; gap:20px; }
  .values-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .value-card, .value-card:nth-child(4), .value-card:nth-child(5){ grid-column:span 1; }
  .value-card:last-child{ grid-column:span 2; }
  .process-grid{ grid-template-columns:repeat(2, 1fr); row-gap:36px; }
  .contact-grid{ grid-template-columns:1fr; }
}

@media (max-width: 960px){
  .menu-toggle{ display:flex; }
  .header-actions{ margin-left:auto; }
  .primary-nav{
    position:fixed; left:0; right:0; top:78px;
    flex-direction:column; align-items:flex-start; gap:0;
    background:#fff; color:var(--ink);
    padding:12px var(--gutter) 26px;
    border-bottom:1px solid var(--line);
    opacity:0; transform:translateY(-10px); pointer-events:none;
    transition:opacity .3s var(--ease), transform .3s var(--ease);
    max-height:calc(100svh - 78px); overflow:auto;
  }
  body.nav-open .primary-nav{ opacity:1; transform:none; pointer-events:auto; }
  .primary-nav a{
    width:100%; padding:15px 0; font-size:17px;
    border-bottom:1px solid var(--line);
  }
  .primary-nav a::after{ display:none; }
  .about-grid{ grid-template-columns:1fr; }
  .about-facts{ grid-template-columns:1fr; gap:22px; }
  .belief{ grid-template-columns:64px minmax(0,1fr); }
  .contact-row{ grid-template-columns:96px minmax(0,1fr); }
  .footer-cols{ grid-template-columns:1fr 1fr; }
  .footer-col-wide{ grid-column:span 2; }
}

@media (max-width: 640px){
  .hero{ padding-top:120px; padding-bottom:96px; min-height:auto; }
  .hero-rail{ flex-direction:column; gap:18px; }
  .hero-title{ font-size:clamp(2.3rem, 10vw, 3.1rem); }
  .hero-lede{ font-size:15px; }
  .btn{ height:48px; padding:0 20px; font-size:14px; }
  .scroll-cue{ display:none; }
  .values-grid{ grid-template-columns:1fr; }
  .value-card, .value-card:last-child{ grid-column:span 1; }
  .process-grid{ grid-template-columns:1fr; }
  .belief{ grid-template-columns:1fr; gap:10px; }
  .belief-num{ padding-top:0; }
  .footer-cols{ grid-template-columns:1fr; gap:28px; }
  .footer-col-wide{ grid-column:auto; }
  .footer-top{ flex-direction:column; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
  .statement-mark{ width:108%; right:-16%; opacity:.04; }
}

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

/* --------- 截图 / 打印模式：URL 加 ?capture 后取消动效并展开首屏 --------- */
html.capture .reveal{ opacity:1 !important; transform:none !important; transition:none !important; }
html.capture .marquee-track,
html.capture .orb,
html.capture .scroll-cue span::after{ animation:none !important; }
html.capture .hero{ min-height:auto; padding-block:150px 120px; }
html.capture .scroll-cue{ display:none; }
html.capture .site-header{ position:absolute; }