/* =========================================================
   XWP·数据盘人生 · 玄道文化科技 官网
   2026 高端设计系统 · 玄墨紫 + 鎏金
   设计语言：衬线学术感 + 金线质感 + 极光层次 + 微交互
   修订：统一卡片基因 / 区块节奏令牌 / 分隔线·金句·非对称组件
   ========================================================= */
:root{
  --purple-900:#211C53;
  --purple-800:#332B82;
  --purple-700:#4F46AD;
  --purple-600:#6B61C9;
  --purple-500:#8279D6;
  --purple-100:#ECEAFB;
  --purple-050:#121026;

  --gold-800:#6E4A0C;
  --gold-700:#854F0B;
  --gold-600:#A4630F;
  --gold-500:#BA7517;
  --gold-400:#C98E2E;
  --gold-300:#E7C889;
  --gold-200:#F1DCAE;
  --gold-050:#1a1520;

  --bg:#080714;
  --surface:rgba(18,16,38,.92);
  --surface-2:rgba(22,20,44,.92);
  --ink:#ECEAFB;
  --ink-1:#ECEAFB;
  --ink-2:#C9C4EB;
  --muted:#9A96C6;
  --line:rgba(124,140,255,.22);
  --line-strong:rgba(124,140,255,.35);

  --radius:24px;
  --radius-sm:15px;
  --radius-xs:11px;

  /* 多层柔和阴影，制造悬浮纵深 */
  --shadow:0 24px 64px -18px rgba(33,28,83,.22), 0 6px 18px -8px rgba(33,28,83,.10);
  --shadow-sm:0 12px 30px -14px rgba(33,28,83,.16);
  --shadow-gold:0 18px 44px -12px rgba(181,117,23,.34), 0 6px 16px -8px rgba(181,117,23,.20);
  --shadow-dark:0 30px 80px -24px rgba(13,10,40,.55);

  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-soft:cubic-bezier(.4,.14,.3,1);

  /* 区块节奏令牌：所有 section 共用同一纵间距，杜绝"粘一起"或忽大忽小 */
  --band-pad:clamp(76px,9vw,116px);

  --font-display:"Noto Serif SC","Songti SC","Source Han Serif SC","STSong",Georgia,serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:
    radial-gradient(1100px 620px at 86% -6%,rgba(107,97,201,.10),transparent 58%),
    radial-gradient(900px 520px at -6% 14%,rgba(186,117,23,.07),transparent 55%),
    var(--bg);
  background-attachment:fixed;
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
/* 极淡胶片颗粒，提升质感 */
body::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.035;
  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='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
section{position:relative;z-index:2}

/* 全局浮动光斑：缓慢呼吸 + 滚动视差，制造全站“活着”的氛围 */
.ambient{position:fixed;inset:0;z-index:0;pointer-events:none;will-change:transform;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(72px);opacity:.4;mix-blend-mode:screen}
.orb-a{width:48vw;height:48vw;left:-10vw;top:4vh;background:radial-gradient(circle,rgba(107,97,201,.5),transparent 66%);animation:orbA 24s var(--ease-soft) infinite}
.orb-b{width:42vw;height:42vw;right:-8vw;top:44vh;background:radial-gradient(circle,rgba(186,117,23,.38),transparent 66%);animation:orbB 28s var(--ease-soft) infinite}
.orb-c{width:34vw;height:34vw;left:30vw;top:64vh;background:radial-gradient(circle,rgba(130,121,214,.32),transparent 66%);animation:orbC 30s var(--ease-soft) infinite}
@keyframes orbA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(7vw,5vh) scale(1.12)}}
@keyframes orbB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-6vw,-4vh) scale(1.08)}}
@keyframes orbC{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(4vw,-6vh) scale(1.1)}}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ---------- 排版基元 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.18em;
  color:#E7C889;text-transform:uppercase;
  padding:7px 16px;border-radius:999px;
  background:linear-gradient(180deg,#1a1520,var(--gold-050));
  border:1px solid rgba(231,200,137,.25);
  box-shadow:0 2px 8px -4px rgba(181,117,23,.35);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold-500);box-shadow:0 0 0 3px rgba(186,117,23,.18);animation:dotPulse 3s ease-in-out infinite}
.eyebrow.purple{color:#B8B2FF;background:linear-gradient(180deg,#121026,var(--purple-050));border-color:var(--line-strong)}
.eyebrow.purple::before{background:var(--purple-600);box-shadow:0 0 0 3px rgba(107,97,201,.18)}
.h2{
  font-family:var(--font-display);
  font-size:clamp(28px,3.6vw,44px);
  font-weight:700;letter-spacing:.005em;line-height:1.22;
  color:var(--ink-1);margin:18px 0 16px;
}
.lead{font-size:clamp(15px,1.5vw,18px);color:var(--muted);max-width:62ch;line-height:1.85}
.gold{color:var(--gold-600)}
.purple{color:var(--purple-700)}

/* ---------- 区块通用头（统一层级） ---------- */
.section-head{max-width:760px}
.head{max-width:760px;margin-bottom:54px}
.head.center{max-width:780px;margin-left:auto;margin-right:auto;text-align:center}
.head.center .lead{margin-left:auto;margin-right:auto}
.head .eyebrow{margin-bottom:2px}
.head h2{margin-top:16px}
.head p.lead{margin-top:14px}

/* ---------- 通用 section 节奏 ---------- */
.band{padding:var(--band-pad) 0}
.band.alt{
  background:linear-gradient(180deg,#0B0A18,#080714);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.center{text-align:center}
.center .head{margin-left:auto;margin-right:auto}

/* ---------- 分隔线（金线 + 中心菱形） ---------- */
.s-rule{display:flex;align-items:center;justify-content:center;gap:18px;padding:8px 0 4px;margin:0 auto;max-width:520px}
.s-rule::before,.s-rule::after{content:"";height:1px;flex:1;max-width:200px;
  background:linear-gradient(90deg,transparent,var(--gold-300))}
.s-rule::after{background:linear-gradient(90deg,var(--gold-300),transparent)}
.s-rule .dia{width:9px;height:9px;transform:rotate(45deg);border-radius:2px;
  background:linear-gradient(135deg,var(--gold-400),var(--gold-700));box-shadow:0 0 0 4px rgba(186,117,23,.14);animation:diaSpin 14s linear infinite}

/* ---------- 金句 callout ---------- */
.callout{
  position:relative;background:linear-gradient(180deg,#121026,var(--purple-050));overflow:hidden;
  border:1px solid var(--line-strong);border-left:4px solid var(--gold-500);
  border-radius:var(--radius-sm);padding:30px 34px;box-shadow:var(--shadow-sm);
  display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;
}
.callout .ck{font-family:var(--font-display);font-size:34px;font-weight:900;
  color:var(--gold-600);line-height:1;opacity:.5;user-select:none}
.callout .ct b{display:block;font-family:var(--font-display);font-size:clamp(18px,2.2vw,24px);
  color:var(--ink-1);line-height:1.5;font-weight:700;margin-bottom:6px}
.callout .ct span{font-size:14.5px;color:var(--muted);line-height:1.7}
.callout.gold{background:linear-gradient(180deg,#1a1520,var(--gold-050));border-left-color:var(--purple-600)}

/* ---------- 左右非对称 showcase ---------- */
.showcase{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.showcase.flip .visual{order:2}
.showcase .txt h3{font-family:var(--font-display);font-size:clamp(22px,2.6vw,30px);
  color:var(--ink-1);line-height:1.32;margin-bottom:16px;font-weight:700}
.showcase .txt p{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:14px}
.showcase .visual{background:linear-gradient(160deg,#121026,var(--purple-050));border:1px solid var(--line);
  border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.showcase .visual::before{content:"";position:absolute;top:-40px;right:-40px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(186,117,23,.16),transparent 70%)}

/* ---------- 2x2 迷你卡（替代文字墙） ---------- */
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px}
.mini{background:#121026;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;position:relative;overflow:hidden;
  box-shadow:0 6px 18px -10px rgba(33,28,83,.18);transition:transform .28s var(--ease),box-shadow .28s, border-color .28s}
.mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--line-strong)}
.mini .mi{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:#fff;margin-bottom:11px;
  background:linear-gradient(135deg,var(--purple-700),var(--gold-500));box-shadow:0 8px 18px -8px rgba(79,70,173,.55)}
.mini b{display:block;font-size:15px;color:var(--ink-1);font-weight:700;margin-bottom:4px}
.mini span{font-size:13.5px;color:var(--muted);line-height:1.6}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--font-body);font-weight:700;font-size:15px;padding:15px 28px;border-radius:999px;
  cursor:pointer;border:1px solid transparent;transition:transform .28s var(--ease),box-shadow .28s var(--ease),background .28s,color .28s;
  white-space:nowrap;position:relative;overflow:hidden;
}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-400),var(--gold-600) 55%,var(--gold-800));
  color:#fff;box-shadow:var(--shadow-gold);
}
.btn-gold::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  transform:skewX(-18deg);transition:left .75s var(--ease)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 22px 50px -10px rgba(181,117,23,.42)}
.btn-gold:hover::after{left:135%}
.btn-purple{
  background:linear-gradient(135deg,var(--purple-700),var(--purple-900));
  color:#fff;box-shadow:var(--shadow-sm);
}
.btn-purple:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.42);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.7)}
.btn-outline{background:rgba(124,140,255,.12);color:#ECEAFB;border-color:rgba(124,140,255,.35);box-shadow:0 2px 8px -6px rgba(0,0,0,.25)}
.btn-outline:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:#9A92DC;color:#fff}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  transition:background .35s,box-shadow .35s,backdrop-filter .35s;
}
.nav.scrolled{
  background:rgba(8,7,20,.88);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  box-shadow:0 1px 0 rgba(124,140,255,.12), 0 8px 30px -18px rgba(0,0,0,.35);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:15px 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:17px;color:#fff;transition:color .3s;letter-spacing:.01em}
.nav.scrolled .brand{color:var(--ink)}
.brand .mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;position:relative;
  background:transparent;
  display:grid;place-items:center;overflow:visible;
  animation:logoBreath 4.5s ease-in-out infinite;
}
.brand .mark img{width:34px;height:auto;display:block;filter:drop-shadow(0 4px 10px rgba(0,0,0,.18));transition:filter .3s}
.brand .mark::after{display:none}
.brand small{display:block;font-size:12px;font-weight:600;letter-spacing:.09em;opacity:.72;color:var(--purple-500)}
.nav.scrolled .brand small{color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:9px 15px;border-radius:10px;font-size:15px;font-weight:600;color:rgba(255,255,255,.84);
  transition:color .25s,background .25s;position:relative;
}
.nav.scrolled .nav-links a{color:var(--ink-2)}
.nav-links a::after{content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold-500),var(--gold-300));transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-links a:hover{color:#fff}
.nav.scrolled .nav-links a:hover{color:#fff;background:var(--purple-050)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav.scrolled .btn-ghost{background:var(--purple-050);color:#B8B2FF;border-color:transparent}
.burger{display:none;width:42px;height:42px;border-radius:11px;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.08);cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav.scrolled .burger{border-color:var(--line);background:#121026}
.burger span{width:18px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav.scrolled .burger span{background:var(--ink)}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;
  background:
    radial-gradient(1000px 680px at 80% 6%,rgba(186,117,23,.34),transparent 58%),
    radial-gradient(900px 700px at 8% 92%,rgba(107,97,201,.42),transparent 55%),
    linear-gradient(158deg,var(--purple-900),var(--purple-800) 52%,var(--purple-700));
  color:#fff;
}
.hero-aurora{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}
.hero-aurora::before,.hero-aurora::after{content:"";position:absolute;border-radius:50%;filter:blur(40px);opacity:.55;mix-blend-mode:screen}
.hero-aurora::before{width:520px;height:520px;top:-120px;right:8%;
  background:radial-gradient(circle,rgba(231,200,137,.55),transparent 68%);animation:auroraA 14s var(--ease-soft) infinite}
.hero-aurora::after{width:600px;height:600px;bottom:-180px;left:-6%;
  background:radial-gradient(circle,rgba(130,121,214,.6),transparent 68%);animation:auroraB 17s var(--ease-soft) infinite}
@keyframes auroraA{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30px,40px) scale(1.12)}}
@keyframes auroraB{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(34px,-30px) scale(1.1)}}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;mask-image:linear-gradient(180deg,#000,transparent 72%);
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 72%);
}
.hero .wrap{position:relative;z-index:3;padding-top:128px;padding-bottom:84px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(40px,6vw,72px);font-weight:900;line-height:1.06;letter-spacing:.01em;
  margin:24px 0 22px;
}
.hero h1 .grad{
  background:linear-gradient(115deg,#FFF 8%,var(--gold-300) 55%,#FFF 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 40px rgba(231,200,137,.25);
  background-size:200% auto;animation:gradShine 7s linear infinite;
}
.hero p.lead{color:rgba(255,255,255,.84);font-size:clamp(16px,1.7vw,19px);max-width:54ch;line-height:1.9}
.hero-cta{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-meta{display:flex;gap:38px;margin-top:50px;flex-wrap:wrap}
.hero-meta .m{position:relative;padding-left:18px}
.hero-meta .m::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:linear-gradient(var(--gold-300),var(--gold-500))}
.hero-meta .m b{display:block;font-family:var(--font-display);font-size:30px;font-weight:900;color:#fff;line-height:1}
.hero-meta .m span{font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.02em}

.hero-card{
  position:relative;background:linear-gradient(180deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:28px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-dark);
}
.hero-card::before{content:"";position:absolute;inset:0;border-radius:var(--radius);padding:1px;
  background:linear-gradient(140deg,rgba(231,200,137,.55),transparent 40%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.hc-head{display:flex;align-items:center;gap:11px;margin-bottom:22px}
.hc-head .hc-dot{width:9px;height:9px;border-radius:50%;background:var(--gold-300);box-shadow:0 0 0 4px rgba(231,200,137,.18),0 0 14px var(--gold-300)}
.hc-head h3{margin:0;font-size:15px;color:var(--gold-300);letter-spacing:.1em;font-weight:700}
.datadisk{display:grid;grid-template-columns:200px 1fr;gap:28px;align-items:center}
.visual-col{display:flex;flex-direction:column;align-items:center;gap:16px}
.ring{position:relative;width:200px;height:200px;display:grid;place-items:center}
.ring svg{width:100%;height:100%}
.ring-label{position:absolute;font-size:12px;font-weight:700;color:#fff;letter-spacing:.04em;white-space:nowrap;
  text-shadow:0 1px 3px rgba(38,33,92,.55),0 0 8px rgba(38,33,92,.35);
  padding:4px 9px;background:rgba(38,33,92,.35);border-radius:12px;border:1px solid rgba(231,200,137,.3)}
.ring-label.top{top:6px;left:50%;transform:translateX(-50%)}
.ring-label.bottom{bottom:6px;left:50%;transform:translateX(-50%)}
.ring-label.left{left:6px;top:50%;transform:translateY(-50%)}
.ring-tags{display:none;gap:9px;flex-wrap:wrap;justify-content:center}
.ring-tags span{font-size:12px;font-weight:700;color:#fff;padding:4px 10px;background:rgba(38,33,92,.35);border:1px solid rgba(231,200,137,.3);border-radius:20px}
/* 太阳系轨道版 26 板块：三层轨道各载 3 颗行星，内快外慢（开普勒节律隐喻） */
.solar-orb-in{animation:spin 20s linear infinite;transform-origin:100px 100px}
.solar-orb-mid{animation:spin 34s linear infinite;transform-origin:100px 100px}
.solar-orb-out{animation:spin 54s linear infinite reverse;transform-origin:100px 100px}
@media(prefers-reduced-motion:reduce){
  .solar-orb-in,.solar-orb-mid,.solar-orb-out{animation:none}
}
.nodes{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.node{position:relative;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:12px;padding:13px 14px;font-size:12.5px;color:rgba(255,255,255,.82);
  transition:transform .3s var(--ease),background .3s,border-color .3s;overflow:hidden}
.node::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:linear-gradient(90deg,var(--gold-300),transparent)}
.node:hover{transform:translateY(-3px);background:rgba(255,255,255,.1);border-color:rgba(231,200,137,.45)}
.node b{font-family:var(--font-display);font-size:15px;color:var(--gold-300);min-width:44px;font-weight:800}
@media(max-width:680px){
  .datadisk{grid-template-columns:1fr;gap:18px}
  .visual-col{gap:14px}
  .ring{width:170px;height:170px}
  .ring-label{display:none}
  .ring-tags{display:flex}
  .nodes{width:100%;grid-template-columns:repeat(2,1fr);gap:10px}
  .node{padding:12px;font-size:12px}
  .node b{font-size:14px;min-width:auto}
}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center}
.about-grid .txt h2{margin-top:16px}
.about-visual{
  background:linear-gradient(160deg,#121026,var(--purple-050));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.about-visual::before{content:"";position:absolute;top:-40px;right:-40px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(186,117,23,.16),transparent 70%)}
.about-visual .row{display:flex;gap:15px;align-items:center;padding:17px 18px;border-radius:var(--radius-sm);background:#121026;margin-bottom:13px;box-shadow:0 4px 14px -8px rgba(0,0,0,.25);border:1px solid rgba(124,140,255,.18);transition:transform .3s var(--ease),box-shadow .3s}
.about-visual .row:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}
.about-visual .row .ic{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--purple-700),var(--gold-500));display:grid;place-items:center;color:#fff;flex:0 0 auto;box-shadow:0 8px 18px -8px rgba(79,70,173,.55)}
.about-visual .row b{font-size:15px;color:var(--ink-1);font-weight:700}
.about-visual .row span{font-size:13px;color:var(--muted)}

/* ---------- 五大板块 / 通用卡片基因（统一） ---------- */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar,.method,.tech{
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.pillar::before,.method::before,.tech::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--purple-600),var(--gold-500));transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.pillar:hover,.method:hover,.tech:hover{transform:translateY(-9px);box-shadow:var(--shadow), 0 10px 30px -12px rgba(181,117,23,.22);border-color:var(--line-strong)}
.pillar:hover::before,.method:hover::before,.tech:hover::before{transform:scaleX(1)}

/* 图标容器：三种卡片共用同一尺寸/圆角/渐变，视觉归为一族 */
.card-ic,.pillar .pic,.method .num,.tech .tic{
  width:52px;height:52px;border-radius:15px;flex:0 0 auto;display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--purple-700),var(--purple-900));
  box-shadow:0 10px 22px -10px rgba(79,70,173,.6);
  font-family:var(--font-display);font-size:19px;font-weight:900;font-variant-numeric:tabular-nums;
}
.pillar.gold .pic,.method.gold .num,.tech.gold .tic{background:linear-gradient(135deg,var(--gold-400),var(--gold-700))}
.pillar:hover .pic,.method:hover .num,.tech:hover .tic{transform:translateY(-3px) rotate(-3deg);transition:transform .35s var(--ease)}
.pillar h3,.method h3,.tech h3{font-family:var(--font-display);font-size:21px;color:var(--ink-1);margin:20px 0 9px;font-weight:700}
.pillar p,.method p,.tech p{color:var(--muted);font-size:14.5px;line-height:1.78}

/* 五大板块专用：标签 + 更多 */
.pillar .tag{position:absolute;top:24px;right:24px;font-size:12px;font-weight:700;color:#E7C889;background:#1a1520;border:1px solid rgba(231,200,137,.25);padding:3px 11px;border-radius:999px;letter-spacing:.04em}
.pillar .more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:700;font-size:14px;color:var(--purple-700)}
.pillar .more svg{transition:transform .25s}
.pillar:hover .more svg{transform:translateX(5px)}

/* 方法论 / 技术 内部布局 */
.method{display:flex;gap:20px}
.tech .chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tech .chips span{font-size:12.5px;font-weight:600;color:#B8B2FF;background:#121026;padding:5px 13px;border-radius:999px;border:1px solid rgba(124,140,255,.22)}

/* ---------- 数据墙 ---------- */
.stats{
  position:relative;overflow:hidden;border-radius:var(--radius);padding:54px 44px;box-shadow:var(--shadow-dark);
  background:
    radial-gradient(420px 320px at 88% -20%,rgba(186,117,23,.4),transparent 60%),
    radial-gradient(380px 300px at -8% 120%,rgba(130,121,214,.42),transparent 60%),
    linear-gradient(155deg,var(--purple-900),var(--purple-800));
  color:#fff;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center;
  border:1px solid rgba(255,255,255,.14);
}
.stats::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:26px 26px;opacity:.5;mask-image:linear-gradient(180deg,#000,transparent 75%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 75%)}
.stats .s{position:relative}
.stats .s b{display:block;font-family:var(--font-display);font-size:clamp(30px,3.2vw,44px);font-weight:900;line-height:1;
  background:linear-gradient(120deg,#FFF,var(--gold-300));-webkit-background-clip:text;background-clip:text;color:transparent}
.stats .s span{font-size:13px;color:rgba(255,255,255,.74);margin-top:12px;display:block;letter-spacing:.02em}

/* ---------- CTA 交流 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius);padding:64px 52px;text-align:center;box-shadow:var(--shadow-dark);
  background:
    radial-gradient(760px 420px at 82% -10%,rgba(186,117,23,.32),transparent 58%),
    radial-gradient(620px 420px at 8% 120%,rgba(130,121,214,.4),transparent 58%),
    linear-gradient(155deg,var(--purple-800),var(--purple-700));
  color:#fff;border:1px solid rgba(255,255,255,.14);
}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px;opacity:.45;mask-image:linear-gradient(180deg,#000,transparent 80%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 80%)}
.cta-band h2{position:relative;color:#fff;font-family:var(--font-display);font-size:clamp(27px,3.4vw,42px);font-weight:800;margin-bottom:15px}
.cta-band p{position:relative;color:rgba(255,255,255,.84);max-width:56ch;margin:0 auto 32px;font-size:16px;line-height:1.85}
.cta-band .hero-cta{position:relative;justify-content:center}

/* ---------- Footer ---------- */
.footer{position:relative;z-index:2;background:linear-gradient(160deg,var(--purple-900),#15112F);color:rgba(255,255,255,.7);padding:64px 0 32px}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold-500),var(--gold-300),var(--gold-500),transparent);opacity:.7}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer .brand{color:#fff;margin-bottom:18px}
.footer .brand small{color:rgba(255,255,255,.6)}
.footer p.desc{font-size:14px;max-width:34ch;line-height:1.8}
.footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700;letter-spacing:.02em;position:relative;padding-left:14px}
.footer h4::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:3px;background:linear-gradient(var(--gold-300),var(--gold-500))}
.footer ul{list-style:none;display:grid;gap:11px}
.footer ul a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s,padding .2s}
.footer ul a:hover{color:var(--gold-300);padding-left:4px}
.footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}
.footer .disclaimer{font-size:12.5px;color:rgba(255,255,255,.45);max-width:74ch;margin-top:14px;line-height:1.7}
.footer .beian{margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.5);display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.footer .beian a{color:rgba(255,255,255,.5);text-decoration:none;display:inline-flex;align-items:center;gap:5px;transition:color .2s}
.footer .beian a:hover{color:rgba(255,255,255,.85)}
.footer .beian .beian-icon{opacity:.7}
.footer .beian .beian-sep{opacity:.4}

/* ===== 暗黑星盘 Hero（3D 立体版） ===== */
.hero-totem{background:#0A0A0A;min-height:clamp(220px,26vh,300px);flex-direction:row;justify-content:center;align-items:center;gap:clamp(28px,5vmin,70px);padding-top:90px;padding-bottom:30px}
.hero-totem::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:min(760px,90%);height:150px;pointer-events:none;background:radial-gradient(60% 150px at 50% 100%,rgba(124,140,255,.22),transparent 72%)}
.stars{position:absolute;inset:0;width:100%;height:100%;z-index:0;display:block}
.hero-vignette{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(120% 90% at 50% 50%,rgba(124,140,255,.07),transparent 55%),radial-gradient(140% 120% at 50% 42%,transparent 38%,rgba(0,0,0,.6) 100%)}
.totem-stage{position:relative;z-index:2;display:flex;flex-direction:row;align-items:center;gap:clamp(28px,5vmin,70px)}

/* 格言文字（A/B 动态交叉切换） */
.motto-stage{position:relative;min-height:7.6em;width:min(72ch,58vw);flex:1 1 auto}
.motto{position:absolute;left:0;top:0;right:0;text-align:left;transition:opacity .9s var(--ease),transform .9s var(--ease);will-change:opacity,transform}
.motto-line{word-break:keep-all;overflow-wrap:break-word}
.motto:not(.is-active){opacity:0;transform:translateY(16px);pointer-events:none}
.motto.is-active{opacity:1;transform:none}
.motto-line{margin:0 0 .35em;font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI",sans-serif;font-weight:300;font-size:clamp(15px,1.85vmin,19px);line-height:1.75;letter-spacing:.04em;color:rgba(255,255,255,.78)}
.motto-line:last-child{margin-bottom:0}
.motto-strong{color:#fff;font-weight:500;text-shadow:0 0 22px rgba(255,255,255,.1)}
.motto-dots{position:absolute;left:2px;bottom:-1.4em;display:flex;gap:7px}
.motto-dots i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.22);transition:background .4s,box-shadow .4s;cursor:pointer}
.motto-dots i.on{background:rgba(201,210,255,.95);box-shadow:0 0 8px rgba(124,140,255,.7)}

/* 3D 星盘容器 */
.totem{position:relative;width:min(30vmin,200px);height:min(30vmin,200px);display:grid;place-items:center;perspective:900px;transform-style:preserve-3d}
.totem-aura{position:absolute;inset:-22%;border-radius:50%;background:radial-gradient(circle,rgba(124,140,255,.16),rgba(168,119,255,.1) 32%,transparent 68%);filter:blur(22px);pointer-events:none;transform:translateZ(-60px)}
.totem-shadow{position:absolute;left:50%;bottom:-18%;width:86%;height:26%;transform:translateX(-50%) rotateX(70deg);border-radius:50%;background:radial-gradient(closest-side,rgba(0,0,0,.55),transparent 70%);filter:blur(10px);pointer-events:none}
.totem-deck{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(62deg) scale(.92);pointer-events:none}
.deck-ring{position:absolute;left:50%;top:50%;border-radius:50%;border:1px solid rgba(124,140,255,.18);background:linear-gradient(180deg,rgba(124,140,255,.08),rgba(168,119,255,.04));box-shadow:0 12px 34px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.12);transform:translate(-50%,-50%) translateZ(var(--z,0))}
.deck-ring:nth-child(1){width:94%;height:94%;--z:-28px}
.deck-ring:nth-child(2){width:66%;height:66%;--z:-18px}
.deck-ring:nth-child(3){width:38%;height:38%;--z:-9px}
.astrolabe{position:relative;width:100%;height:100%;overflow:visible;transform-style:preserve-3d;transform:rotateX(62deg) translateZ(10px)}
.astrolabe .ring{transform-origin:200px 200px;filter:drop-shadow(0 0 5px rgba(124,140,255,.6)) drop-shadow(0 0 10px rgba(168,119,255,.45))}
.ring-outer{animation:spin 96s linear infinite}
.ring-mid{animation:spin 72s linear infinite reverse}
.ring-inner{animation:spin 132s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.ring-line{fill:none;stroke:rgba(150,162,255,.42);stroke-width:1.1}
.ring-bright{fill:none;stroke:rgba(200,210,255,.92);stroke-width:1.6}
.tick{stroke:rgba(150,162,255,.42);stroke-width:1.1}
.tick-long{stroke:rgba(190,200,255,.6);stroke-width:1.3}
.node{fill:url(#nodeGrad);filter:drop-shadow(0 0 2px rgba(255,255,255,.55))}
.sweep{opacity:0;pointer-events:none}
@keyframes sweepScan{0%{transform:translateY(-140px) rotate(0deg);opacity:0}10%{opacity:.55}90%{opacity:.55}100%{transform:translateY(140px) rotate(0deg);opacity:0}}
.sweep{animation:sweepScan 5.2s ease-in-out infinite;mix-blend-mode:screen}
.core{position:absolute;left:50%;top:50%;width:clamp(9px,2vmin,15px);height:clamp(9px,2vmin,15px);transform:translate(-50%,-50%) translateZ(28px);border-radius:50%;background:radial-gradient(circle,#fff,#C9D2FF 35%,rgba(124,140,255,0) 76%);box-shadow:0 0 16px rgba(201,210,255,1),0 0 40px rgba(124,140,255,.65),0 0 84px rgba(168,119,255,.42);animation:breathe 4.6s ease-in-out infinite;pointer-events:none}
@keyframes breathe{0%,100%{opacity:.55;transform:translate(-50%,-50%) translateZ(28px) scale(.82)}50%{opacity:1;transform:translate(-50%,-50%) translateZ(28px) scale(1.14)}}
.scroll-hint{position:absolute;left:50%;bottom:max(22px,3.8vmin);transform:translateX(-50%);z-index:3;letter-spacing:.5em;text-indent:.5em;font-size:12px;font-weight:400;color:rgba(255,255,255,.25);animation:hintfade 6s ease-in-out infinite}
@keyframes hintfade{0%,100%{opacity:.18}50%{opacity:.5}}
@media(prefers-reduced-motion:reduce){.ring-outer,.ring-mid,.ring-inner,.core,.scroll-hint,.sweep{animation:none}.core{opacity:.85}.sweep{opacity:0}}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.40s}

/* ===== 整体优化：顶部滚动进度条 ===== */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--gold-600),var(--gold-300));
  box-shadow:0 0 10px rgba(186,117,23,.6);transition:width .08s linear;pointer-events:none}

/* ===== 整体优化：暗黑星盘带 → 内容区 柔和过渡桥（消除硬切缝） ===== */
.hero.hero-main::before{content:"";position:absolute;top:0;left:0;right:0;height:130px;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,#0A0A0A 0%,rgba(10,10,10,.55) 42%,transparent 100%)}

/* ===== 整体优化：首屏内容载入入场（克制淡入上移） ===== */
@keyframes heroUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.hero-main .hero-grid>div:first-child{animation:heroUp 1s var(--ease) both}
.hero-main .hero-card{animation:heroUp 1.1s var(--ease) .12s both}
/* 星盘随滚动轻微视差（由 JS 控制 transform/opacity，此处仅开硬件加速） */
.totem-stage{will-change:transform,opacity}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .showcase{grid-template-columns:1fr;gap:28px}
  .showcase.flip .visual{order:0}
  .pillars{grid-template-columns:repeat(2,1fr)}
  .method-grid,.tech-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:34px 16px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  .nav-links,.nav-cta .btn-outline{display:none}
  .burger{display:flex}
  .nav.open .nav-links{
    display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;
    background:#121026;padding:14px 18px;gap:4px;box-shadow:var(--shadow);border-top:1px solid var(--line);
  }
  .nav.open .nav-links a{color:var(--ink-2)}
  .nav.open .nav-links a:hover{background:var(--purple-050);color:var(--purple-800)}
  .band{padding:72px 0}
  .pillars{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-meta{gap:24px}
  .cta-band{padding:46px 26px}
  .mini-grid{grid-template-columns:1fr}
  .callout{grid-template-columns:1fr;gap:8px}
  .callout .ck{font-size:28px}
}
@media (max-width:560px){
  .hero-totem{gap:18px;padding-top:86px;padding-bottom:34px}
  .totem-stage{flex-direction:column;gap:18px}
  .motto-stage{min-height:10.5em;width:min(94vw,56ch)}
  .motto{text-align:center;padding:0 12px}
  .motto-dots{left:50%;transform:translateX(-50%)}
  .motto-line{font-size:clamp(13.5px,3.6vw,16px);line-height:1.7;margin-bottom:.45em;word-break:keep-all;overflow-wrap:break-word}
  .totem{width:min(42vmin,170px);height:min(42vmin,170px)}
  .astrolabe,.totem-deck{transform:rotateX(48deg) translateZ(10px)}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;animation:none!important}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ===== 教程特色区 ===== */
.tut-band{background:linear-gradient(180deg,#080714 0%,#0B0A18 60%)}
.tut-feature{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center;
  background:#121026;border:1px solid var(--line);border-radius:24px;padding:24px;
  box-shadow:var(--shadow);margin:8px 0 32px}
.tut-cover{position:relative;display:block;border-radius:18px;overflow:hidden;aspect-ratio:16/10;
  background:var(--purple-050);box-shadow:0 16px 38px rgba(83,74,183,.2)}
.tut-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.tut-cover:hover img{transform:scale(1.04)}
.tut-cover-go{position:absolute;left:14px;bottom:14px;background:rgba(33,28,83,.92);color:#FCE9C8;
  font-weight:700;font-size:14px;padding:9px 16px;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.tut-intro h3{font-family:var(--font-display);font-size:22px;margin-bottom:14px;color:var(--ink-1);font-weight:700}
.tut-points{list-style:none;display:flex;flex-direction:column;gap:11px;margin:0 0 22px}
.tut-points li{position:relative;padding-left:20px;color:var(--ink-2);font-size:15.5px;line-height:1.7}
.tut-points li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:linear-gradient(var(--gold-400),var(--gold-700));box-shadow:0 0 0 3px rgba(186,117,23,.16)}
.chap-grid{display:grid;grid-template-columns:repeat(13,1fr);gap:12px}
.chap{display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px 6px;border-radius:14px;
  background:#121026;border:1px solid rgba(124,140,255,.22);text-decoration:none;color:#ECEAFB;
  transition:.24s;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.chap b{font-size:18px;font-weight:800;color:#9A92DC;font-variant-numeric:tabular-nums;font-family:var(--font-display)}
.chap span{font-size:13px;color:#C9C4EB;white-space:nowrap}
.chap:hover{transform:translateY(-4px);border-color:var(--purple-500);
  box-shadow:0 14px 30px rgba(0,0,0,.35);background:linear-gradient(180deg,#121026,#151230)}
.chap:hover b{color:var(--purple-600)}
@media (max-width:900px){
  .tut-feature{grid-template-columns:1fr}
  .chap-grid{grid-template-columns:repeat(7,1fr)}
}
@media (max-width:560px){
  .chap-grid{grid-template-columns:repeat(4,1fr)}
  .tut-cover-go{font-size:13px;padding:8px 13px}
}

/* ===== 全息架构 · 三层楼 ===== */
.floors{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.floor{background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.floor::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;
  background:linear-gradient(90deg,var(--purple-600),var(--gold-500));transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.floor:hover{transform:translateY(-9px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.floor:hover::before{transform:scaleX(1)}
.fl-head{display:flex;align-items:baseline;gap:11px;margin-bottom:10px}
.fl-tag{font-size:12px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--purple-700),var(--purple-900));
  padding:5px 13px;border-radius:999px;letter-spacing:.04em}
.floor.gold .fl-tag{background:linear-gradient(135deg,var(--gold-400),var(--gold-700))}
.fl-head b{font-family:var(--font-display);font-size:24px;color:var(--ink-1);font-weight:800}
.fl-desc{color:var(--muted);font-size:14.5px;line-height:1.7;margin-bottom:18px;min-height:44px}
.fl-list{list-style:none;display:grid;gap:9px}
.fl-list li{font-size:14.5px;color:var(--ink-2);padding:11px 15px;background:#121026;
  border:1px solid var(--line);border-radius:12px;font-weight:600;letter-spacing:.01em;transition:transform .25s var(--ease),border-color .25s}
.fl-list li:hover{transform:translateX(4px);border-color:var(--purple-500)}
.floor.gold .fl-list li{background:#1a1520;border-color:rgba(231,200,137,.25)}
.floor.gold .fl-list li:hover{border-color:var(--gold-500)}
@media (max-width:900px){.floors{grid-template-columns:1fr}}

/* ===== 二级页（实战 / 技术）===== */
.subhero{position:relative;min-height:52vh;display:flex;align-items:center;overflow:hidden;
  background:radial-gradient(900px 560px at 80% 8%,rgba(186,117,23,.3),transparent 58%),
    radial-gradient(820px 600px at 10% 92%,rgba(107,97,201,.4),transparent 55%),
    linear-gradient(158deg,var(--purple-900),var(--purple-800) 52%,var(--purple-700));
  color:#fff}
.subhero .hero-aurora::before{background:radial-gradient(circle,rgba(231,200,137,.5),transparent 68%)}
.subhero .hero-aurora::after{background:radial-gradient(circle,rgba(130,121,214,.55),transparent 68%)}
.subhero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:28px 28px;opacity:.5;mask-image:linear-gradient(180deg,#000,transparent 74%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 74%)}
.subhero .wrap{position:relative;z-index:3;padding-top:120px;padding-bottom:60px}
.crumbs{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:rgba(255,255,255,.86)}
.crumbs a:hover{color:#fff}
.crumbs span{opacity:.45}
.subhero h1{font-family:var(--font-display);font-size:clamp(32px,5.2vw,60px);font-weight:900;line-height:1.08;letter-spacing:.01em;margin:4px 0 18px}
.subhero .grad{background:linear-gradient(115deg,#fff 8%,var(--gold-300) 92%);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 36px rgba(231,200,137,.22)}
.subhero p.lead{color:rgba(255,255,255,.84);max-width:62ch;font-size:clamp(15px,1.6vw,18px);line-height:1.9}
.subhero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.subhero-tags span{font-size:13px;font-weight:600;color:var(--gold-300);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);padding:7px 14px;border-radius:999px}
.nav-links a.active{color:var(--gold-300)}
.nav.scrolled .nav-links a.active{color:var(--purple-800);background:var(--purple-050)}

/* 纵向流程时间线 */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:30px;top:18px;bottom:18px;width:2px;
  background:linear-gradient(var(--purple-500),var(--gold-500));opacity:.4}
.tl{display:grid;grid-template-columns:60px 1fr;gap:24px;padding:16px 0;position:relative}
.tl .step{flex:0 0 auto;width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-family:var(--font-display);font-size:19px;font-weight:900;color:#fff;background:linear-gradient(135deg,var(--purple-700),var(--purple-900));
  box-shadow:0 10px 22px -10px rgba(79,70,173,.6);z-index:2}
.tl.gold .step{background:linear-gradient(135deg,var(--gold-400),var(--gold-700))}
.tl .body h3{font-family:var(--font-display);font-size:18px;color:var(--ink-1);margin-bottom:6px;font-weight:700}
.tl .body p{color:var(--muted);font-size:15px;line-height:1.7}
/* 示意盘面 */
.board{background:linear-gradient(180deg,var(--surface),var(--surface-2));border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.board h4{font-size:13px;color:#E7C889;letter-spacing:.1em;margin-bottom:14px;text-transform:uppercase;font-weight:700}
.board-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.bcell{background:#121026;border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center;transition:transform .25s var(--ease),border-color .25s}
.bcell:hover{transform:translateY(-3px);border-color:var(--purple-500)}
.bcell b{display:block;font-size:15px;color:#9A92DC;font-weight:800;margin-bottom:3px;font-family:var(--font-display)}
.bcell span{font-size:12.5px;color:var(--muted)}
.bcell.zero{background:var(--gold-050);border-color:var(--gold-200)}
.bcell.zero b{color:var(--gold-700)}
.bcell.zero:hover{border-color:var(--gold-500)}
.board-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.7}
@media (max-width:760px){.board-grid{grid-template-columns:repeat(2,1fr)}.timeline::before{left:29px}}

/* ===== 实战页：真实个案入口卡 ===== */
.case-card{display:block;text-decoration:none;color:#ECEAFB;
  background:linear-gradient(180deg,#121026,#0f0d1f);
  border:1px solid rgba(124,140,255,.22);border-radius:16px;padding:26px 28px;margin-top:8px;
  position:relative;overflow:hidden;transition:.25s;
  box-shadow:0 10px 30px rgba(0,0,0,.18)}
.case-card::before{content:"";position:absolute;left:0;top:0;right:0;height:3px;
  background:linear-gradient(90deg,#534ab7,#ba7517)}
.case-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.3)}
.case-card .cc-tag{display:inline-block;font-size:.76rem;letter-spacing:.04em;color:#E7C889;
  background:#1a1520;border:1px solid rgba(231,200,137,.3);border-radius:20px;padding:4px 12px;margin-bottom:14px}
.case-card h3{font-family:"Noto Serif SC",serif;font-size:1.22rem;margin:0 0 10px;color:#ECEAFB}
.case-card p{font-size:.96rem;line-height:1.85;color:#C9C4EB;margin:0 0 16px}
.case-card .cc-go{display:inline-flex;align-items:center;gap:6px;color:#9A92DC;font-weight:700;font-size:.95rem}
.case-card .cc-go svg{transition:.2s}
.case-card:hover .cc-go svg{transform:translateX(4px)}

/* ===== 动感增强：关键帧 + 卡片扫光 ===== */
@keyframes logoBreath{0%,100%{filter:drop-shadow(0 4px 10px rgba(0,0,0,.18));transform:scale(1)}50%{filter:drop-shadow(0 6px 16px rgba(0,0,0,.22)) drop-shadow(0 0 16px rgba(220,38,38,.2));transform:scale(1.05)}}
@keyframes diaSpin{0%{transform:rotate(45deg)}100%{transform:rotate(405deg)}}
@keyframes gradShine{0%{background-position:0% 50%}100%{background-position:200% 50%}}
@keyframes dotPulse{0%,100%{box-shadow:0 0 0 3px rgba(186,117,23,.18)}50%{box-shadow:0 0 0 6px rgba(186,117,23,.08)}}
/* 卡片悬停斜扫高光（统一动感，呼应金线） */
.pillar::after,.method::after,.tech::after,.floor::after,.case-card::after,.about-visual::after,.mini::after,.callout::after{content:"";position:absolute;top:0;left:-130%;width:55%;height:100%;z-index:3;pointer-events:none;background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-18deg);transition:left .85s var(--ease)}
.pillar:hover::after,.method:hover::after,.tech:hover::after,.floor:hover::after,.case-card:hover::after,.about-visual:hover::after,.mini:hover::after,.callout:hover::after{left:135%}

/* ===== 移动端深度优化：触控区 ≥44px + 阅读舒适度 ===== */
@media(max-width:820px){
  /* 触控区：正文/页脚文本链接放大到 44px（iOS HIG / Material 推荐最小可点区域） */
  .pillar .more{display:inline-flex;align-items:center;min-height:44px;padding:10px 4px}
  .footer ul{gap:2px}
  .footer ul a{display:inline-flex;align-items:center;min-height:44px;font-size:14.5px}
  .footer .bottom a{display:inline-flex;align-items:center;min-height:44px}
  /* 备案信息为法律要求展示项，保留字号但补足可点区域 */
  .footer .beian{gap:4px}
  .footer .beian a{min-height:44px;padding:0 2px}
  /* 面包屑（首页 / 实战 / 技术 / 感悟） */
  .crumbs a{display:inline-flex;align-items:center;min-height:44px;font-size:14px}
  .footer p.desc{font-size:14.5px;max-width:none}
  /* 正文行高与字号：中文窄屏更易读 */
  .wrap{padding-left:18px;padding-right:18px}
  /* 装饰光球层固定定位，确保不产生任何横向滚动 */
  .ambient{overflow:hidden}
  /* 3D 可视化在窄屏留足呼吸空间 */
  .chapter-visual.viz3d{margin:18px 0 24px}
}
@media(max-width:420px){
  .wrap{padding-left:14px;padding-right:14px}
  .footer-grid{gap:24px}
}