/* ==========================================================================
   知命易学 · 独立站样式表
   设计基调：深空鎏金（默认）+ 宣纸浅色（章节切换）
   作者：归藏工作室 · 2026-11
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-0:#06070a;
  --ink-1:#0a0c10;
  --ink-2:#101318;
  --ink-3:#161a21;
  --ink-4:#1e232b;

  --gold:#d8b25e;
  --gold-soft:#eed9a6;
  --gold-deep:#a5813d;
  --gold-dim:rgba(216,178,94,.16);
  --gold-line:rgba(216,178,94,.22);

  --jade:#7ba694;
  --seal:#a8342b;

  --text:#ebe5d7;
  --text-2:rgba(235,229,215,.76);
  --text-3:rgba(235,229,215,.58);
  --text-4:rgba(235,229,215,.4);

  --paper:#f3eee2;
  --paper-2:#e9e2d2;
  --paper-text:#241f18;
  --paper-text-2:rgba(36,31,24,.66);

  --line:rgba(216,178,94,.14);
  --line-soft:rgba(235,229,215,.08);

  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","Songti TC","Noto Serif TC",SimSun,serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif;
  --latin:"Cormorant Garamond","EB Garamond",Georgia,"Times New Roman",serif;

  --wrap:1180px;
  --wrap-narrow:860px;
  --nav-h:72px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);

  --shadow-card:0 24px 60px -32px rgba(0,0,0,.9);
  --shadow-gold:0 20px 60px -24px rgba(216,178,94,.28);
}

/* 繁体字形优先：Hant 字符若逐字回退会出现字重不一，故整体切换字族 */
html[lang="zh-Hant"]{
  --serif:"Songti TC","PingFang TC","Noto Serif TC","Source Han Serif TC","Songti SC","STSong","Source Han Serif SC",SimSun,serif;
  --sans:"PingFang TC","Microsoft JhengHei","Noto Sans TC","Source Han Sans TC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* 宣纸浅色主题（局部章节 / 全站切换） */
[data-theme="paper"] .gold-text{
  background:linear-gradient(168deg,#a5813d 0%,#8a6528 46%,#6b4c18 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
[data-theme="paper"] .hero-disc{filter:brightness(.62) saturate(1.15)}
[data-theme="paper"] .stars{opacity:.25}
[data-theme="paper"] .glow{
  background:radial-gradient(circle,rgba(141,106,44,.14) 0%,rgba(141,106,44,.05) 34%,transparent 64%)}
[data-theme="paper"]{
  --ink-0:#f3eee2;
  --ink-1:#f7f3e9;
  --ink-2:#efe9da;
  --ink-3:#e7dfcd;
  --ink-4:#ddd3be;
  --text:#241f18;
  --text-2:rgba(36,31,24,.76);
  --text-3:rgba(36,31,24,.62);
  --text-4:rgba(36,31,24,.44);
  --gold:#8d6a2c;
  --gold-soft:#6f5220;
  --gold-deep:#7a5a24;
  --gold-dim:rgba(141,106,44,.10);
  --gold-line:rgba(141,106,44,.26);
  --line:rgba(36,31,24,.14);
  --line-soft:rgba(36,31,24,.08);
  --shadow-card:0 24px 50px -34px rgba(60,45,20,.45);
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink-0);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  font-feature-settings:"kern" 1;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:rgba(216,178,94,.28);color:#fff}

.wrap{width:min(100% - 48px,var(--wrap));margin-inline:auto}
.wrap-narrow{width:min(100% - 48px,var(--wrap-narrow));margin-inline:auto}

/* 环境颗粒 */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3'/><feColorMatrix type='saturate' values='0'/></filter><rect width='180' height='180' filter='url(%23n)' opacity='.055'/></svg>");
  mix-blend-mode:overlay;
}
main,header,footer{position:relative;z-index:1}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:500;line-height:1.24;letter-spacing:.01em}
p{margin:0}
.serif{font-family:var(--serif)}
.latin{font-family:var(--latin)}

.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:12px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--gold);font-family:var(--sans);
}
.eyebrow::before{
  content:"";width:26px;height:1px;background:currentColor;opacity:.6;
}
.eyebrow.center::after{
  content:"";width:26px;height:1px;background:currentColor;opacity:.6;
}

.h-display{
  font-size:clamp(46px,7.2vw,86px);line-height:1.06;letter-spacing:.06em;
}
.h1{font-size:clamp(34px,4.6vw,52px);line-height:1.2}
.h2{font-size:clamp(28px,3.4vw,40px);line-height:1.28}
.h3{font-size:clamp(20px,2.1vw,24px)}
.lead{font-size:clamp(15px,1.35vw,17.5px);line-height:1.95;color:var(--text-2)}
.small{font-size:13.5px;line-height:1.8;color:var(--text-3)}

.gold-text{
  background:linear-gradient(168deg,#f6e7bf 0%,#d8b25e 42%,#a5813d 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.muted{color:var(--text-2)}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 26px;border-radius:2px;
  font-size:14.5px;letter-spacing:.08em;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),background .3s,border-color .3s,color .3s;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{
  background:linear-gradient(160deg,#ecd39a,#d8b25e 46%,#b8903f);
  color:#1a1408;font-weight:600;
  box-shadow:0 12px 32px -14px rgba(216,178,94,.6),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -16px rgba(216,178,94,.7),inset 0 1px 0 rgba(255,255,255,.45)}
.btn-ghost{
  border:1px solid var(--gold-line);color:var(--text);
  background:rgba(216,178,94,.03);
}
.btn-ghost:hover{border-color:rgba(216,178,94,.5);background:rgba(216,178,94,.08);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:13px}
.btn-block{width:100%}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--gold);
  letter-spacing:.06em;border-bottom:1px solid transparent;transition:.3s;
}
.link-arrow:hover{border-color:var(--gold-line);gap:12px}
.link-arrow svg{width:14px;height:14px}

/* ---------- 5. 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);display:flex;align-items:center;
  transition:background .5s,border-color .5s,backdrop-filter .5s;
  border-bottom:1px solid transparent;
}
.nav.is-scrolled{
  background:rgba(6,7,10,.78);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
[data-theme="paper"] .nav.is-scrolled{background:rgba(243,238,226,.86)}
.nav-inner{
  width:min(100% - 48px,var(--wrap));margin-inline:auto;
  display:flex;align-items:center;gap:36px;
}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:9px;overflow:hidden;flex:none;
  box-shadow:0 4px 16px rgba(0,0,0,.5),0 0 0 1px rgba(216,178,94,.25);}
.brand-mark img{width:100%;height:100%;object-fit:cover}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-cn{font-family:var(--serif);font-size:17px;letter-spacing:.18em;color:var(--text)}
.brand-en{font-family:var(--latin);font-size:9.5px;letter-spacing:.28em;color:var(--text-3);text-transform:uppercase;margin-top:3px}

.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-links a{
  font-size:14px;color:var(--text-2);letter-spacing:.08em;position:relative;padding:6px 0;
  transition:color .3s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);
}
.nav-links a:hover{color:var(--gold-soft)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--gold)}

.nav-right{display:flex;align-items:center;gap:18px;flex:none}
.lang{
  display:flex;align-items:center;border:1px solid var(--line);border-radius:2px;overflow:hidden;
}
.lang a{
  padding:5px 10px;font-size:12px;color:var(--text-3);letter-spacing:.06em;transition:.25s;
  line-height:1.4;
}
.lang a:hover{color:var(--text)}
.lang a.is-on{background:rgba(216,178,94,.14);color:var(--gold-soft)}
.lang a + a{border-left:1px solid var(--line)}

.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--line)}
.nav-toggle span{display:block;width:16px;height:1px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1px;background:var(--text);transition:.3s}
.nav-toggle span::before{top:-5px}.nav-toggle span::after{top:5px}
.nav-open .nav-toggle span{background:transparent}
.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

.mobile-menu{
  position:fixed;inset:0;z-index:99;background:rgba(6,7,10,.97);
  backdrop-filter:blur(20px);display:flex;flex-direction:column;justify-content:center;
  padding:0 32px;opacity:0;pointer-events:none;transition:opacity .4s;
}
[data-theme="paper"] .mobile-menu{background:rgba(243,238,226,.98)}
.nav-open .mobile-menu{opacity:1;pointer-events:auto}
.mobile-menu a{
  font-family:var(--serif);font-size:27px;padding:18px 0;border-bottom:1px solid var(--line-soft);
  color:var(--text);letter-spacing:.12em;display:flex;align-items:baseline;justify-content:space-between;
}
.mobile-menu a small{font-size:11px;letter-spacing:.24em;color:var(--text-4);font-family:var(--latin)}
.mobile-menu .lang{margin-top:36px;align-self:flex-start}

/* ---------- 6. 首页 Hero ---------- */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 40px) 0 80px;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .glow{
  position:absolute;left:50%;top:28%;width:min(1100px,120vw);aspect-ratio:1;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(216,178,94,.12) 0%,rgba(216,178,94,.05) 32%,transparent 62%);
  filter:blur(6px);
}
.stars{position:absolute;inset:0;opacity:.9}
.stars i{
  position:absolute;width:2px;height:2px;border-radius:50%;background:#fff;
  opacity:.5;animation:twinkle 6s ease-in-out infinite;
}
@keyframes twinkle{0%,100%{opacity:.18}50%{opacity:.75}}

.hero-grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;
  gap:40px;align-items:center;
}
.hero-copy{max-width:560px}
.hero h1{margin:22px 0 0}
.hero h1 .line{display:block}
.hero-sub{margin-top:26px;max-width:460px;font-size:15.5px;line-height:2.05;color:var(--text-2)}
.hero-cta{display:flex;gap:14px;margin-top:38px;flex-wrap:wrap}
.hero-meta{
  display:flex;gap:34px;margin-top:54px;padding-top:26px;border-top:1px solid var(--line);flex-wrap:wrap;
}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta b{font-family:var(--latin);font-size:30px;font-weight:500;color:var(--gold-soft);line-height:1}
.hero-meta span{font-size:11.5px;letter-spacing:.2em;color:var(--text-3)}

/* 卦盘 */
.hero-art{position:relative;display:flex;justify-content:center;align-items:center;min-height:520px}
.hero-disc{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:min(560px,46vw);height:auto;pointer-events:none;
}
.disc-ticks{transform-box:fill-box;transform-origin:center;animation:spin 260s linear infinite}
section[id],div[id]{scroll-margin-top:calc(var(--nav-h) + 20px)}
.disc{
  position:absolute;width:min(560px,44vw);aspect-ratio:1;border-radius:50%;
  border:1px solid rgba(216,178,94,.14);
  animation:spin 150s linear infinite;
}
.disc::before{
  content:"";position:absolute;inset:26px;border-radius:50%;
  border:1px dashed rgba(216,178,94,.12);
}
.disc::after{
  content:"";position:absolute;inset:64px;border-radius:50%;
  border:1px solid rgba(216,178,94,.09);
}
.disc .tri{
  position:absolute;left:50%;top:50%;width:1px;height:50%;
  transform-origin:top center;background:linear-gradient(to bottom,rgba(216,178,94,.35),transparent 62%);
}
.disc .glyph{
  position:absolute;left:50%;top:6px;transform:translateX(-50%);
  font-family:var(--serif);font-size:13px;color:rgba(216,178,94,.55);letter-spacing:.1em;
  transform-origin:50% calc(min(560px,44vw)/2 - 6px);
}
@keyframes spin{to{transform:rotate(360deg)}}

.phone{
  position:relative;z-index:3;width:276px;aspect-ratio:9/19.2;
  border-radius:34px;padding:9px;
  background:linear-gradient(160deg,#2a2620,#0d0f13 42%,#1c1a16);
  box-shadow:0 50px 100px -40px rgba(0,0,0,.95),0 0 0 1px rgba(216,178,94,.22),inset 0 1px 0 rgba(255,255,255,.14);
}
.phone::before{
  content:"";position:absolute;top:16px;left:50%;transform:translateX(-50%);
  width:66px;height:5px;border-radius:3px;background:#000;z-index:5;opacity:.7;
}
.phone-screen{
  width:100%;height:100%;border-radius:26px;overflow:hidden;position:relative;
  background:radial-gradient(ellipse 120% 80% at 50% 0%,#171a22 0%,#0a0c10 60%,#06070a 100%);
  padding:34px 14px 14px;display:flex;flex-direction:column;gap:10px;
}
.ps-head{display:flex;align-items:center;gap:7px;font-size:9px;color:rgba(235,229,215,.45);letter-spacing:.12em}
.ps-head .dot{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 8px var(--gold)}
.ps-title{font-family:var(--serif);font-size:15px;color:var(--gold-soft);letter-spacing:.2em;margin-top:4px}
.ps-sub{font-size:8.5px;color:rgba(235,229,215,.34);letter-spacing:.16em}
.ps-chart{margin-top:8px;border:1px solid rgba(216,178,94,.16);border-radius:3px;padding:10px 9px;
  background:linear-gradient(180deg,rgba(216,178,94,.05),transparent)}
.ps-row{display:flex;align-items:center;gap:6px;height:26px;border-bottom:1px solid rgba(235,229,215,.05)}
.ps-row:last-child{border-bottom:0}
.ps-idx{width:12px;font-size:8px;color:rgba(216,178,94,.5);font-family:var(--latin)}
.ps-label{width:26px;font-size:8px;color:rgba(235,229,215,.42)}
.ps-lines{display:flex;flex-direction:column;gap:2.5px;width:26px}
.ps-lines i{height:2px;background:var(--gold);opacity:.85;border-radius:1px}
.ps-lines i.broken{background:linear-gradient(90deg,var(--gold) 0 40%,transparent 40% 60%,var(--gold) 60%)}
.ps-meta{flex:1;display:flex;gap:5px;justify-content:flex-end}
.ps-meta em{font-style:normal;font-size:7.5px;color:rgba(235,229,215,.3);border:1px solid rgba(235,229,215,.08);padding:1px 4px;border-radius:2px}
.ps-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(216,178,94,.12);padding-top:8px;font-size:8px;color:rgba(235,229,215,.32)}
.ps-foot b{color:var(--gold);font-weight:500}
.ps-pans{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:auto}
.ps-pans div{border:1px solid rgba(216,178,94,.14);padding:8px 4px 7px;text-align:center;background:rgba(216,178,94,.03)}
.ps-pans span{display:block;font-size:7px;letter-spacing:.16em;color:rgba(235,229,215,.3)}
.ps-pans b{display:block;font-family:var(--serif);font-size:10.5px;color:var(--gold-soft);margin-top:5px;letter-spacing:.08em;font-weight:400}
.ps-time{font-size:7.5px;color:rgba(235,229,215,.26);letter-spacing:.04em;margin:9px 0 10px;text-align:center}

/* 竖排诗句 */
.vertical-note{
  position:absolute;right:-6px;top:50%;transform:translateY(-50%);
  writing-mode:vertical-rl;font-family:var(--serif);font-size:12px;letter-spacing:.5em;
  color:rgba(235,229,215,.22);line-height:2.4;
}

/* 向下提示 */
.scroll-hint{
  position:absolute;left:50%;bottom:28px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:10px;letter-spacing:.3em;color:var(--text-4);
}
.scroll-hint i{width:1px;height:44px;background:linear-gradient(to bottom,var(--gold),transparent);animation:hint 2.6s ease-in-out infinite}
@keyframes hint{0%,100%{opacity:.25;transform:scaleY(.6)}50%{opacity:.9;transform:scaleY(1)}}

/* ---------- 7. 区块骨架 ---------- */
.section{padding:clamp(80px,9vw,132px) 0;position:relative}
.section.tight{padding:clamp(64px,6vw,92px) 0}
.section-head{max-width:720px}
.section-head.center{margin-inline:auto;text-align:center}
.section-head h2{margin-top:18px}
.section-head .lead{margin-top:20px}
.section-head.center .lead{margin-inline:auto;max-width:620px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}

.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}

/* 宣纸段 */
.paper{
  background:var(--paper);color:var(--paper-text);
  --text:var(--paper-text);--text-2:var(--paper-text-2);--text-3:rgba(36,31,24,.62);
  --gold:#8d6a2c;--gold-soft:#6f5220;--line:rgba(36,31,24,.14);
  --line-soft:rgba(36,31,24,.08);--gold-line:rgba(141,106,44,.28);
  /* 墨阶一并反转，否则区块内的卡片仍是深底 + 深字 */
  --text-4:rgba(36,31,24,.44);
  --ink-0:var(--paper);--ink-1:#faf6ec;--ink-2:#f1ead9;--ink-3:#e8dfcb;--ink-4:#ded3bc;
  --shadow-card:0 24px 50px -34px rgba(60,45,20,.45);
  position:relative;overflow:hidden;
}
.paper::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(36,31,24,.055) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000,transparent 78%);
}
.paper .eyebrow{color:var(--gold)}
.paper .lead{color:var(--paper-text-2)}

/* ---------- 8. 卡片通用 ---------- */
.card{
  position:relative;border:1px solid var(--line);background:
    linear-gradient(180deg,rgba(255,255,255,.024),rgba(255,255,255,0) 44%),var(--ink-1);
  transition:border-color .5s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease),background .5s;
}
.card:hover{border-color:rgba(216,178,94,.34);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.card-corner::before,.card-corner::after{
  content:"";position:absolute;width:10px;height:10px;border:1px solid var(--gold);opacity:.4;
  transition:opacity .4s;
}
.card-corner::before{left:-1px;top:-1px;border-right:0;border-bottom:0}
.card-corner::after{right:-1px;bottom:-1px;border-left:0;border-top:0}
.card:hover.card-corner::before,.card:hover.card-corner::after{opacity:.9}

/* 三大独有 */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:56px}
.pillar{
  background:var(--ink-0);padding:38px 32px 34px;position:relative;overflow:hidden;
  transition:background .5s;
}
.pillar:hover{background:var(--ink-1)}
.pillar-art{height:96px;display:flex;align-items:center;margin-bottom:26px;opacity:.9}
.pillar-tag{
  position:absolute;right:24px;top:24px;font-size:10px;letter-spacing:.22em;color:var(--gold);
  border:1px solid var(--gold-line);padding:3px 8px;border-radius:1px;
}
.pillar h3{font-size:23px;letter-spacing:.08em}
.pillar .en{font-family:var(--latin);font-size:11px;letter-spacing:.24em;color:var(--text-4);text-transform:uppercase;margin-top:6px}
.pillar p{margin-top:16px;font-size:14px;line-height:1.95;color:var(--text-2)}
.pillar .link-arrow{margin-top:22px;font-size:12.5px}

/* ---------- 9. 模块矩阵 ---------- */
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-top:44px;flex-wrap:wrap}
.tab{
  padding:14px 0;margin-right:38px;font-size:14.5px;color:var(--text-3);letter-spacing:.06em;
  border-bottom:1px solid transparent;margin-bottom:-1px;transition:.3s;display:flex;align-items:baseline;gap:8px;
}
.tab b{font-family:var(--latin);font-size:12px;font-weight:400;opacity:.6}
.tab:hover{color:var(--text)}
.tab.is-on{color:var(--gold);border-bottom-color:var(--gold)}
.tab-panel{display:none;padding-top:40px}
.tab-panel.is-on{display:block;animation:fadeUp .6s var(--ease) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* 单元格各自带右侧 + 下侧发丝线：末行不满时自然收边，不会出现空白格 */
.mod-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line-soft);border-left:1px solid var(--line-soft);
}
.mod{
  background:var(--ink-0);padding:22px 22px 20px;transition:background .4s;position:relative;
  border-right:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);
}
.mod:hover{background:var(--ink-1)}
/* 旧占位格：不再参与布局（保留标记以兼容已生成页面） */
.mod-filler{display:none}
.mod-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.mod h4{font-size:16.5px;letter-spacing:.05em}
.mod .badge{font-size:9.5px;letter-spacing:.16em;color:var(--gold);border:1px solid var(--gold-line);padding:2px 6px;flex:none}
.mod p{margin-top:8px;font-size:12.5px;line-height:1.8;color:var(--text-3)}
.mod:hover p{color:var(--text-2)}

/* ---------- 10. 学习体系 ---------- */
.study-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(40px,6vw,96px);align-items:start;margin-top:20px}
.study-visual{position:relative}
.stage-list{display:flex;flex-direction:column;gap:20px}
.stage-item .stage-meta{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:9px}
.stage-item .stage-meta span{font-size:12.5px;letter-spacing:.1em;color:rgba(36,31,24,.74)}
.stage-item .stage-meta span em{font-style:normal;color:rgba(36,31,24,.4);margin-left:8px;letter-spacing:.04em}
.stage-item .stage-meta b{font-family:var(--latin);font-size:14px;font-weight:400;color:var(--gold);white-space:nowrap}
.stage-track{height:4px;background:rgba(36,31,24,.12);position:relative;overflow:hidden}
.stage-track i{
  position:absolute;left:0;top:0;bottom:0;display:block;
  background:linear-gradient(90deg,var(--gold),rgba(141,106,44,.28));
  transform-origin:left;transform:scaleX(0);transition:transform 1.1s var(--ease);
}
.stage-item.in .stage-track i{transform:scaleX(1)}
.quote-block{margin-top:46px;padding-left:22px;border-left:2px solid var(--gold)}
.quote-block p{font-family:var(--serif);font-size:18px;line-height:2;color:var(--paper-text)}
.quote-block cite{display:block;margin-top:10px;font-style:normal;font-size:11.5px;letter-spacing:.2em;color:rgba(36,31,24,.45)}

/* ---------- 11. 游戏 ---------- */
.games{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:44px}
.game{
  border:1px solid var(--line);padding:20px 18px;display:flex;flex-direction:column;gap:10px;
  min-height:132px;transition:.4s var(--ease);position:relative;overflow:hidden;
}
.game:hover{border-color:rgba(216,178,94,.36);background:rgba(216,178,94,.04);transform:translateY(-3px)}
.game .g-glyph{font-family:var(--serif);font-size:22px;color:var(--gold);opacity:.8;line-height:1}
.game h4{font-size:15px;letter-spacing:.06em}
.game span{font-size:11.5px;color:var(--text-3);line-height:1.7}
.game .g-type{position:absolute;right:14px;top:16px;font-size:9px;letter-spacing:.14em;color:var(--text-4)}

/* ---------- 12. 隐私 ---------- */
.privacy{position:relative;border:1px solid var(--line);padding:clamp(40px,6vw,72px);overflow:hidden}
.privacy::before{
  content:"";position:absolute;right:-10%;top:-40%;width:60%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(123,166,148,.12),transparent 65%);
}
.privacy-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative}
.privacy-points{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.privacy-point{display:grid;grid-template-columns:30px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.privacy-point .n{font-family:var(--latin);font-size:12px;color:var(--gold);padding-top:3px}
.privacy-point h4{font-size:15.5px}
.privacy-point p{margin-top:5px;font-size:13px;color:var(--text-3);line-height:1.8}
.face-visual{position:relative;aspect-ratio:1;display:grid;place-items:center}
.face-visual svg{width:100%;height:auto;max-width:340px;opacity:.9}

/* ---------- 13. 会员 ---------- */
.tiers{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:48px}
.tier{background:var(--ink-0);padding:28px 22px 26px;display:flex;flex-direction:column;transition:background .4s}
.tier:hover{background:var(--ink-1)}
.tier.feature{background:linear-gradient(180deg,rgba(216,178,94,.09),rgba(216,178,94,.02) 60%);position:relative;box-shadow:inset 0 0 0 1px var(--gold-line)}
[data-theme="paper"] .tier.feature{background:linear-gradient(180deg,rgba(141,106,44,.13),rgba(141,106,44,.03) 60%);box-shadow:inset 0 0 0 1px rgba(141,106,44,.42)}
.tier.feature::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.tier .t-name{font-family:var(--serif);font-size:19px;letter-spacing:.1em}
.tier .t-level{font-size:10px;letter-spacing:.2em;color:var(--text-4);margin-top:4px}
.tier .t-price{font-family:var(--latin);font-size:28px;color:var(--gold-soft);margin-top:20px;line-height:1}
.tier .t-price small{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin-left:4px}
.tier .t-note{font-size:11px;color:var(--text-4);margin-top:6px;min-height:34px;line-height:1.6}
.tier ul{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:9px}
.tier li{font-size:12.5px;color:var(--text-2);line-height:1.7;padding-left:12px;position:relative}
.tier li::before{content:"";position:absolute;left:0;top:.66em;width:4px;height:1px;background:var(--gold);opacity:.6}

/* ---------- 14. 下载 ---------- */
.dl-band{
  position:relative;border:1px solid var(--gold-line);overflow:hidden;
  background:radial-gradient(ellipse 90% 130% at 50% 0%,rgba(216,178,94,.12),transparent 62%),var(--ink-1);
  padding:clamp(40px,5.5vw,64px);
}
.dl-band::after{
  content:"";position:absolute;left:50%;bottom:-70%;width:120%;height:120%;
  background:radial-gradient(ellipse at center,rgba(216,178,94,.07),transparent 60%);
  transform:translateX(-50%);pointer-events:none;
}
.dl-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:52px;align-items:center;position:relative;z-index:2}
.dl-platforms{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.dl-p{
  border:1px solid var(--line);padding:16px 18px;display:flex;align-items:center;gap:14px;
  transition:.35s;background:rgba(6,7,10,.4);
}
.dl-p:hover{border-color:rgba(216,178,94,.4);background:rgba(216,178,94,.06)}
.dl-p .ico{width:30px;height:30px;flex:none;color:var(--gold)}
.dl-p .txt{display:flex;flex-direction:column;line-height:1.35}
.dl-p .txt b{font-size:13.5px;font-weight:500;letter-spacing:.04em}
.dl-p .txt span{font-size:10.5px;color:var(--text-4);letter-spacing:.08em;margin-top:3px}
.dl-p[aria-disabled="true"]{opacity:.55}
.dl-p[aria-disabled="true"]:hover{border-color:var(--line);background:rgba(6,7,10,.4)}

/* ---------- 15. FAQ ---------- */
.faq{margin-top:44px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 0;text-align:left;font-family:var(--serif);font-size:17px;letter-spacing:.04em;
  transition:color .3s;
}
.faq-q:hover{color:var(--gold-soft)}
.faq-q .ic{width:12px;height:12px;position:relative;flex:none;opacity:.6}
.faq-q .ic::before,.faq-q .ic::after{content:"";position:absolute;background:currentColor;transition:transform .4s var(--ease)}
.faq-q .ic::before{left:0;top:5.5px;width:12px;height:1px}
.faq-q .ic::after{left:5.5px;top:0;width:1px;height:12px}
.faq-item.is-open .faq-q{color:var(--gold)}
.faq-item.is-open .ic::after{transform:rotate(90deg)}
.faq-a{overflow:hidden;height:0;transition:height .45s var(--ease)}
.faq-a p{padding:0 60px 26px 0;font-size:14px;line-height:1.95;color:var(--text-2)}

/* ---------- 16. 页脚 ---------- */
.footer{border-top:1px solid var(--line);padding:72px 0 34px;background:var(--ink-1)}
.footer-top{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:48px}
.footer-brand .brand-mark{width:44px;height:44px}
.footer-brand p{margin-top:18px;font-size:13px;line-height:1.9;color:var(--text-3);max-width:290px}
.footer-col h5{margin:0 0 16px;font-size:11px;letter-spacing:.24em;color:var(--text-4);font-weight:400;text-transform:uppercase;font-family:var(--sans)}
.footer-col a,.footer-col span{display:block;font-size:13px;color:var(--text-2);padding:6px 0;transition:.25s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line-soft);
  display:flex;align-items:flex-start;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.footer-bottom p{font-size:11.5px;line-height:1.9;color:var(--text-4);max-width:760px}
.footer-social{display:flex;gap:10px}
.footer-social a{width:34px;height:34px;border:1px solid var(--line);display:grid;place-items:center;transition:.3s;color:var(--text-3)}
.footer-social a:hover{border-color:var(--gold-line);color:var(--gold)}
.footer-social svg{width:15px;height:15px}

/* ---------- 17. 内页头 ---------- */
.page-head{
  padding:calc(var(--nav-h) + 96px) 0 64px;position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";position:absolute;left:50%;top:-40%;width:900px;height:600px;transform:translateX(-50%);
  background:radial-gradient(ellipse,rgba(216,178,94,.09),transparent 65%);pointer-events:none;
}
.page-head .inner{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:48px;flex-wrap:wrap}
.page-head h1{font-size:clamp(38px,5.2vw,62px);letter-spacing:.06em;line-height:1.12;margin-top:18px}
.page-head .lead{max-width:480px;margin-top:16px}
.page-kicker{display:flex;gap:26px;flex-wrap:wrap}
.page-kicker div{display:flex;flex-direction:column;gap:4px;padding-left:16px;border-left:1px solid var(--line)}
.page-kicker b{font-family:var(--latin);font-size:20px;font-weight:400;color:var(--gold-soft);line-height:1}
.page-kicker span{font-size:10px;letter-spacing:.16em;color:var(--text-4)}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.1em;color:var(--text-4);margin-bottom:6px}
.crumb a:hover{color:var(--gold)}
.crumb i{font-style:normal;opacity:.4}

/* ---------- 18. 功能页 ---------- */
.system-block{display:grid;grid-template-columns:44px 1fr;gap:clamp(24px,4vw,56px);padding:clamp(48px,6vw,84px) 0;border-bottom:1px solid var(--line-soft)}
/* 关键：网格子项默认 min-width:auto 会被内部宽表撑破，必须归零 */
.system-block > *{min-width:0}
.system-num{font-family:var(--latin);font-size:13px;color:var(--gold);letter-spacing:.14em;padding-top:8px}
.system-body h2{font-size:clamp(26px,3vw,34px);letter-spacing:.04em}
.system-body .en{font-family:var(--latin);font-size:11.5px;letter-spacing:.26em;color:var(--text-4);text-transform:uppercase;margin-top:8px}
.system-body p{margin-top:18px;font-size:14.5px;line-height:2;color:var(--text-2);max-width:720px}
.system-facts{display:flex;gap:36px;margin-top:28px;flex-wrap:wrap}
.system-facts div{display:flex;flex-direction:column;gap:3px}
.system-facts b{font-family:var(--latin);font-size:22px;font-weight:400;color:var(--gold-soft)}
.system-facts span{font-size:11px;letter-spacing:.14em;color:var(--text-4)}
.spec-table{margin-top:30px;border-top:1px solid var(--line);overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
.spec-table table{width:100%;border-collapse:collapse;min-width:560px}
/* 窄屏：两列表格收进屏内换行；四列以上保留横滑并给出提示 */
@media (max-width:700px){
  .spec-table table{min-width:0}
  .spec-table:has(thead th:nth-child(4)) table{min-width:520px}
  .spec-table:has(thead th:nth-child(4))::after{
    content:"左右滑动查看完整表格 →";display:block;margin-top:10px;
    font-size:11px;letter-spacing:.08em;color:var(--text-4);
  }
}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px 11px 0;border-bottom:1px solid var(--line-soft);font-size:12.5px}
.spec-table th{font-weight:400;color:var(--text-4);letter-spacing:.12em;font-size:10.5px;text-transform:uppercase}
.spec-table td:first-child{color:var(--gold-soft);font-family:var(--serif);font-size:14px}
.spec-table th:first-child,.spec-table td:first-child{white-space:nowrap;padding-right:20px}

.module-cat{margin-top:56px}
.module-cat-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.module-cat-head h3{font-size:22px;letter-spacing:.06em}
.module-cat-head span{font-size:11px;letter-spacing:.16em;color:var(--text-4)}
.module-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.module-item{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:17px 0;border-bottom:1px solid var(--line-soft);align-items:baseline}
.module-item b{font-family:var(--serif);font-size:15px;font-weight:500;letter-spacing:.04em;color:var(--text)}
.module-item p{font-size:12.5px;line-height:1.8;color:var(--text-3)}
.module-item:hover b{color:var(--gold-soft)}

/* ---------- 19. 下载页 ---------- */
.platform-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:52px}
.pcard{border:1px solid var(--line);padding:30px;display:flex;flex-direction:column;gap:0;position:relative;transition:.4s var(--ease)}
.pcard:hover{border-color:rgba(216,178,94,.34);box-shadow:var(--shadow-card)}
.pcard-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.pcard-ico{width:44px;height:44px;color:var(--gold);opacity:.9}
.pcard-status{font-size:10px;letter-spacing:.14em;padding:3px 8px;border:1px solid var(--gold-line);color:var(--gold);white-space:nowrap}
.pcard-status.soon{color:var(--text-4);border-color:var(--line)}
.pcard h3{margin-top:22px;font-size:21px;letter-spacing:.05em}
.pcard .pmeta{margin-top:8px;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.pcard .pdesc{margin-top:16px;font-size:13px;line-height:1.85;color:var(--text-2);flex:1}
.pcard .btn{margin-top:26px}
.pcard .phash{
  margin-top:14px;padding:9px 11px;
  font-size:10.5px;line-height:1.75;color:var(--text-2);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  word-break:break-all;
  background:var(--line-soft);border:1px solid var(--line-soft);
}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:44px}
.step{background:var(--ink-0);padding:30px 26px}
.step .n{font-family:var(--latin);font-size:12px;letter-spacing:.18em;color:var(--gold)}
.step h4{margin-top:14px;font-size:16.5px;letter-spacing:.04em}
.step p{margin-top:10px;font-size:12.5px;line-height:1.85;color:var(--text-3)}

.log-list{margin-top:36px;border-top:1px solid var(--line)}
.log-item{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:22px 0;border-bottom:1px solid var(--line-soft)}
.log-item .v{font-family:var(--latin);font-size:14px;color:var(--gold-soft);letter-spacing:.08em}
.log-item .v small{display:block;font-size:10.5px;color:var(--text-4);margin-top:4px;letter-spacing:.1em}
.log-item ul{margin:0;padding-left:16px;display:flex;flex-direction:column;gap:5px}
.log-item li{font-size:13px;color:var(--text-2);line-height:1.7}

/* ---------- 20. 留言板 ---------- */
.guest-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:clamp(32px,5vw,72px);margin-top:56px;align-items:start}
.guest-form-card{border:1px solid var(--line);padding:34px;position:sticky;top:calc(var(--nav-h) + 24px);background:var(--ink-1)}
.guest-form-card h3{font-size:20px;letter-spacing:.05em}
.guest-form-card .hint{font-size:12px;color:var(--text-4);margin-top:8px;line-height:1.7}
.field{margin-top:20px}
.field label{display:block;font-size:11px;letter-spacing:.16em;color:var(--text-3);margin-bottom:8px}
.field label em{font-style:normal;color:var(--gold);margin-left:4px}
.field input,.field textarea,.field select{
  width:100%;background:rgba(6,7,10,.5);border:1px solid var(--line);color:var(--text);
  padding:12px 14px;font-size:13.5px;font-family:inherit;border-radius:2px;transition:.3s;
  appearance:none;-webkit-appearance:none;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.8}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:rgba(216,178,94,.55);background:rgba(216,178,94,.04)}
.field input::placeholder,.field textarea::placeholder{color:var(--text-4)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.select-wrap{position:relative}
.select-wrap::after{content:"";position:absolute;right:14px;top:50%;width:6px;height:6px;border-right:1px solid var(--text-3);border-bottom:1px solid var(--text-3);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.check{display:flex;gap:10px;align-items:flex-start;margin-top:18px;font-size:11.5px;line-height:1.7;color:var(--text-3)}
.check input{width:14px;height:14px;margin-top:3px;accent-color:#d8b25e;flex:none}
.form-note{margin-top:14px;font-size:11px;color:var(--text-4);line-height:1.7}
.form-msg{margin-top:14px;font-size:12.5px;padding:10px 12px;border:1px solid var(--line);display:none;line-height:1.7}
.form-msg.ok{display:block;border-color:rgba(123,166,148,.4);color:#9dc4b1;background:rgba(123,166,148,.08)}
.form-msg.err{display:block;border-color:rgba(168,52,43,.5);color:#e0a49b;background:rgba(168,52,43,.08)}

.guest-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:16px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.guest-filters{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:11.5px;letter-spacing:.08em;padding:5px 12px;border:1px solid var(--line);color:var(--text-3);transition:.25s}
.chip:hover{color:var(--text);border-color:var(--gold-line)}
.chip.is-on{color:var(--gold);border-color:var(--gold-line);background:rgba(216,178,94,.08)}
.guest-count{font-size:11.5px;color:var(--text-4);letter-spacing:.08em}
.guest-count b{color:var(--gold-soft);font-family:var(--latin);font-size:14px;font-weight:400}

.guest-list{margin-top:8px}
.guest-item{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:24px 0;border-bottom:1px solid var(--line-soft)}
.avatar{
  width:42px;height:42px;border:1px solid var(--gold-line);display:grid;place-items:center;
  font-family:var(--serif);font-size:16px;color:var(--gold);background:rgba(216,178,94,.05);
}
.guest-body .g-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.guest-body .g-name{font-family:var(--serif);font-size:14.5px;letter-spacing:.04em}
.guest-body .g-tag{font-size:9.5px;letter-spacing:.12em;color:var(--gold);border:1px solid var(--gold-line);padding:1px 6px}
.guest-body .g-time{font-size:10.5px;color:var(--text-4);letter-spacing:.06em;margin-left:auto}
.guest-body p{margin-top:10px;font-size:13.5px;line-height:1.95;color:var(--text-2);white-space:pre-wrap;word-break:break-word}
.g-foot{display:flex;align-items:center;gap:16px;margin-top:12px}
.like-btn{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--text-4);transition:.25s}
.like-btn:hover{color:var(--gold)}
.like-btn.is-on{color:var(--gold)}
.like-btn svg{width:13px;height:13px}
.g-reply{margin-top:12px;padding:12px 14px;border-left:1px solid var(--gold-line);background:rgba(216,178,94,.04);font-size:12.5px;line-height:1.85;color:var(--text-2)}
.g-reply b{color:var(--gold);font-weight:500;font-family:var(--serif)}
.empty{padding:60px 0;text-align:center;color:var(--text-4);font-size:13px}

/* 版规 */
.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:48px}
.rule{background:var(--ink-0);padding:24px}
.rule b{font-size:13px;letter-spacing:.06em;color:var(--gold-soft);font-weight:500}
.rule p{margin-top:8px;font-size:12px;line-height:1.8;color:var(--text-3)}

/* ---------- 21. 动效 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.4s}

/* 英文版排版微调：拉丁字形更宽，字号与字距单独收敛 */
html[lang="en"] .h-display{font-size:clamp(38px,4.9vw,64px);line-height:1.1;letter-spacing:0}
html[lang="en"] .h1{font-size:clamp(30px,3.5vw,45px);letter-spacing:0}
html[lang="en"] .h2{font-size:clamp(26px,3vw,36px);letter-spacing:0}
html[lang="en"] .hero-copy{max-width:610px}
html[lang="en"] .hero-sub{font-size:16px;line-height:1.9}
html[lang="en"] .eyebrow{letter-spacing:.24em;font-size:11px}
html[lang="en"] .faq-q{font-size:18px;letter-spacing:0}
html[lang="en"] .pillar h3{font-size:21px;letter-spacing:0}
html[lang="en"] .tier .t-price{font-size:26px}
html[lang="en"] .brand-cn{letter-spacing:.16em;font-size:16px}

/* ---------- 22. 响应式 ---------- */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:64px}
  .hero-copy{max-width:none}
  .hero-art{min-height:440px}
  .disc{width:min(520px,78vw)}
  .hero{min-height:auto;padding-top:calc(var(--nav-h) + 72px)}
  .pillars{grid-template-columns:1fr}
  .mod-grid{grid-template-columns:repeat(2,1fr)}
  .games{grid-template-columns:repeat(3,1fr)}
  .study-grid{grid-template-columns:1fr;gap:48px}
  .privacy-grid{grid-template-columns:1fr;gap:40px}
  .tiers{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
  .module-list{grid-template-columns:1fr;gap:0}
  .guest-wrap{grid-template-columns:1fr}
  .guest-form-card{position:static}
  .vertical-note{display:none}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-right .btn{display:none}
  .nav-inner{gap:16px}
  .hero-meta{gap:26px}
  .hero-meta b{font-size:25px}
  .page-head{padding-top:calc(var(--nav-h) + 64px)}
  .platform-cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .rules{grid-template-columns:1fr}
  .log-item{grid-template-columns:1fr;gap:10px}
  .system-block{grid-template-columns:1fr;gap:12px}
  .system-num{padding-top:0}
}
@media (max-width:640px){
  .wrap,.wrap-narrow{width:calc(100% - 36px)}
  .nav-inner{width:calc(100% - 36px)}
  .section{padding:64px 0}
  .section.tight{padding:48px 0}
  .page-head{padding-bottom:40px}
  .hero{padding-top:calc(var(--nav-h) + 48px);padding-bottom:64px}
  .hero-art{min-height:380px}
  .phone{width:232px;border-radius:30px;padding:7px}
  .phone-screen{border-radius:24px;padding:28px 11px 11px}
  .disc{width:min(420px,92vw)}
  .hero-cta .btn{flex:1;min-width:140px}
  .hero-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
  .mod-grid{grid-template-columns:1fr}
  .games{grid-template-columns:repeat(2,1fr)}
  .tiers{grid-template-columns:1fr}
  .dl-platforms{grid-template-columns:1fr}
  .guest-form-card{padding:24px}
  .field-row{grid-template-columns:1fr}
  .guest-item{grid-template-columns:34px 1fr;gap:12px}
  .avatar{width:34px;height:34px;font-size:14px}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .faq-a p{padding-right:24px}
  .tab{margin-right:22px;font-size:13.5px}
  .pillar{padding:30px 22px}
  .g-time{margin-left:0;width:100%}
}
/* 页头与正文同一窄栏，保证左边缘对齐 */
.page-head.is-narrow .inner{max-width:820px}
.page-head.is-narrow .lead{max-width:640px}

/* ============ 法律页（隐私政策 / 用户协议） ============ */
.legal{max-width:820px;margin:0 auto;padding:0 0 40px}
.legal-meta{
  display:flex;gap:14px 34px;flex-wrap:wrap;margin-bottom:42px;padding:16px 20px;
  border:1px solid var(--line-soft);font-size:12px;color:var(--text-3);
  font-family:var(--sans);letter-spacing:.02em;line-height:1.7
}
.legal-meta b{color:var(--text-2);font-weight:400}
.legal-nav{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:42px;padding-bottom:28px;
  border-bottom:1px solid var(--line-soft)
}
.legal-nav a{
  font-size:12px;padding:6px 13px;border:1px solid var(--line);
  color:var(--text-3);transition:.25s
}
.legal-nav a:hover{border-color:var(--gold-line);color:var(--gold)}
.legal section{margin-bottom:42px;scroll-margin-top:calc(var(--nav-h) + 24px)}
.legal h2{
  font-family:var(--serif);font-size:19px;font-weight:400;letter-spacing:.04em;
  margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line-soft);
  display:flex;gap:12px;align-items:baseline
}
.legal h2 i{
  font-style:normal;font-family:var(--latin);font-size:13px;color:var(--gold);
  letter-spacing:.1em;flex:none
}
.legal h3{
  font-family:var(--sans);font-size:14px;font-weight:500;margin:24px 0 10px;
  color:var(--text);letter-spacing:.02em
}
.legal p{font-size:13.5px;line-height:2;color:var(--text-2);margin:0 0 14px}
.legal ul{margin:0 0 16px;padding-left:0;list-style:none}
.legal li{
  font-size:13.5px;line-height:2;color:var(--text-2);
  padding-left:18px;position:relative;margin-bottom:6px
}
.legal li::before{
  content:"";position:absolute;left:2px;top:.88em;width:4px;height:4px;
  background:var(--gold-line);transform:rotate(45deg)
}
.legal strong{color:var(--text);font-weight:500}
.legal a{color:var(--gold);border-bottom:1px solid var(--gold-line)}
.legal a:hover{border-bottom-color:var(--gold)}
.legal-note{
  margin:6px 0 18px;padding:16px 20px;border-left:2px solid var(--gold-line);
  background:rgba(216,178,94,.055);font-size:13px;line-height:1.95;color:var(--text-2)
}
.legal table{width:100%;border-collapse:collapse;margin:6px 0 18px;font-size:12.5px}
.legal th,.legal td{
  border-bottom:1px solid var(--line-soft);padding:11px 14px 11px 0;
  text-align:left;vertical-align:top;line-height:1.8
}
.legal th{
  color:var(--gold-soft);font-weight:400;font-size:11px;
  letter-spacing:.12em;text-transform:uppercase
}
.legal td{color:var(--text-2)}
.legal td:first-child{color:var(--text-2);white-space:nowrap}

@media (max-width:640px){
  .legal p,.legal li{font-size:13px;line-height:1.95}
  .legal h2{font-size:17px}
  .legal-meta{gap:8px 20px;padding:14px 16px}
  .legal table{font-size:12px}
  .legal th,.legal td{padding:9px 8px 9px 0}
  .legal td:first-child{white-space:normal}
}

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