/* ---------- 本地字体（子集化，仅含页面字符；约 315KB） ---------- */
@font-face{
  font-family:'Noto Serif SC';font-style:normal;font-weight:600;font-display:swap;
  src:url('../assets/fonts/noto-serif-sc-600.subset.woff2') format('woff2');
}
@font-face{
  font-family:'Noto Serif SC';font-style:normal;font-weight:700;font-display:swap;
  src:url('../assets/fonts/noto-serif-sc-700.subset.woff2') format('woff2');
}
@font-face{
  font-family:'Noto Serif SC';font-style:normal;font-weight:900;font-display:swap;
  src:url('../assets/fonts/noto-serif-sc-900.subset.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;
  src:url('../assets/fonts/space-grotesk-400.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;
  src:url('../assets/fonts/space-grotesk-500.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;
  src:url('../assets/fonts/space-grotesk-700.woff2') format('woff2');
}

:root{
  /* —— 主色：04 千年城事录 · 栏目（VI 五组色彩系统·终版 V2.0）—— */
  --paper:#F5EFE4;       /* 纸白 · 档案底 */
  --ink:#1A1A1A;         /* 墨黑 · 正文/标题 */
  --ochre:#C89B3C;       /* 赭金 · 旁注/引文装饰线（仅图形，禁作正文字色） */
  --violet:#7A3B66;      /* 织锦绛紫 · 文脉强调 */
  --sandal:#2E2118;      /* 深檀棕 · 封面深底 */
  --reed:#D9A441;        /* 芦苇金 · 深底大字标题 */
  --warm:#F7F5EF;        /* 暖白 · 深底副标/署名 */
  --seal:#B5402E;        /* 事印朱 · 印章/角标点睛（≤5%） */
  --sage:#A8BFA8;        /* 灰绿 · 深底英文小标/弱化标注（04 正式色） */

  /* —— 辅色：02 通用品牌色彩 · 统一层（仅作辅色，不作主色）—— */
  --mist:#E5DDD2;        /* 线灰 · 分隔线/描边 */
  --dian-ink:#0B1E2D;    /* 淀墨青黑 · 史诗深底（落日/芦苇/灯火场景底） */
  --live:#1FA87A;        /* 活水青 · 生态/地理装饰色（02 辅色） */
  --lake:#0E7C7B;        /* 湖淀青 · 母品牌节点底（02 识别色） */

  /* —— 主题分色借色：04 规范允许（辅色级）—— */
  --future:#2D6CDF;      /* 未来蓝 · 产业/科技主题 · 借母品牌科技线 */
  --terra:#A96A45;       /* 陶红 · 民生主题 · 借城事 Citories */
  --sandal-hi:#3A2A1E;   /* 深檀棕亮阶 · 篇章卡深底渐变 */

  /* —— 04 组合规则：文脉渐变（金→檀→绛 · 片头主视觉/年轴）—— */
  --grad-culture:linear-gradient(90deg,#D9A441,#A0763B 30%,#6B4A31 55%,#72444D 78%,#7A3B66);

  --serif:'Noto Serif SC','Songti SC','STSong','SimSun',serif;
  --sg:'Space Grotesk','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --cn:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:var(--cn);color:var(--ink);background:var(--paper);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
svg{max-width:100%}
a{color:inherit;text-decoration:none}
.en{font-family:var(--sg)}
::selection{background:var(--reed);color:var(--sandal)}

/* ---------- 纸纹 ---------- */
.grain{position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.5;mix-blend-mode:multiply;
  background-image:radial-gradient(rgba(26,26,26,.045) 1px,transparent 1px);background-size:5px 5px}

/* ---------- LOGO（导航 40px / 页脚 46px，替换 assets/logo.svg 即全站生效） ---------- */
.logo{display:block;width:40px;height:40px;border-radius:8px;box-shadow:0 4px 14px rgba(26,26,26,.35);transform:rotate(-3deg)}
.foot-brand .logo{width:46px;height:46px;box-shadow:none}

/* ---------- 导航 ---------- */
nav{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;
  padding:14px 40px;transition:background .4s,box-shadow .4s,padding .4s}
nav .brand{display:flex;align-items:center;gap:12px;color:var(--warm)}
nav .brand-t{line-height:1.25}
nav .brand-t b{font-family:var(--serif);font-size:19px;font-weight:900;letter-spacing:3px;display:block}
nav .brand-t small{font-family:var(--sg);font-size:10px;letter-spacing:2.5px;color:var(--sage);display:block}
nav .nav-links{display:flex;gap:6px;list-style:none}
nav .nav-links a{font-size:14px;color:rgba(247,245,239,.82);padding:7px 14px;border-radius:8px;letter-spacing:1px;transition:.25s}
nav .nav-links a:hover{color:var(--reed);background:rgba(217,164,65,.1)}
nav .nav-links a.act{color:var(--reed)}
nav.scrolled{background:rgba(46,33,24,.92);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(217,164,65,.22);padding:10px 40px}
.nav-toggle{display:none;background:none;border:1px solid rgba(217,164,65,.5);border-radius:8px;padding:8px 10px;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--warm);margin:4px 0;transition:.3s}
@media(max-width:960px){
  nav{padding:12px 20px}
  nav.scrolled{padding:8px 20px}
  nav .nav-links{position:fixed;top:64px;right:0;left:0;background:rgba(46,33,24,.97);flex-direction:column;padding:16px 24px 24px;
    gap:4px;clip-path:inset(0 0 100% 0);transition:clip-path .45s cubic-bezier(.2,.7,.3,1);box-shadow:0 20px 40px rgba(26,26,26,.4)}
  nav .nav-links.open{clip-path:inset(-60px -60px -60px -60px)}
  .nav-toggle{display:block}
  nav .brand-t small{font-size:clamp(8.5px,2.6vw,10px);letter-spacing:clamp(1px,.42vw,2.5px);white-space:nowrap}
  nav.menu-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  nav.menu-open .nav-toggle span:nth-child(2){opacity:0}
  nav.menu-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
}
/* 8 个导航项：中窄屏收紧间距防溢出 */
@media(max-width:1140px){nav .nav-links a{padding:7px 10px;letter-spacing:.5px}}

/* ---------- 封面 · HERO ---------- */
#hero{position:relative;min-height:100vh;background:var(--sandal);display:flex;align-items:center;justify-content:center;overflow:hidden}
#hero .scene{position:absolute;inset:0;width:100%;height:100%}
#hero .scene svg{width:100%;height:100%;display:block}
.hero-inner{position:relative;z-index:5;text-align:center;padding:120px 24px 140px;max-width:1000px}
.hero-file{font-family:var(--sg);font-size:11px;letter-spacing:4px;color:var(--sage);text-transform:uppercase;margin-bottom:26px}
.hero-file b{color:var(--reed);font-weight:500}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:13px;letter-spacing:5px;color:rgba(247,245,239,.75);margin-bottom:8px}
.eyebrow::before,.eyebrow::after{content:"";width:44px;height:1px;background:linear-gradient(90deg,transparent,var(--ochre));}
.eyebrow::after{background:linear-gradient(90deg,var(--ochre),transparent)}
#hero h1{font-family:var(--serif);font-weight:900;color:var(--reed);font-size:clamp(44px,11vw,132px);letter-spacing:clamp(4px,1.6vw,22px);
  text-indent:clamp(4px,1.6vw,22px);line-height:1.15;margin:10px 0 4px;text-shadow:0 10px 50px rgba(26,26,26,.5)}
#hero .en-title{font-family:var(--sg);font-size:clamp(10px,1.4vw,14px);letter-spacing:clamp(4px,.8vw,9px);color:var(--sage);margin-bottom:30px}
#hero .slogan{font-family:var(--serif);font-size:clamp(19px,2.6vw,28px);font-weight:600;color:var(--warm);letter-spacing:8px;margin:8px 0 2px}
#hero .slogan i{font-style:normal;color:var(--reed)}
#hero .sub{font-size:10px;color:rgba(247,245,239,.62);letter-spacing:2px;max-width:560px;margin:2px auto 60px}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-cta .btn{font-size:14.5px;letter-spacing:3px;padding:13px 34px;border-radius:4px;transition:.3s}
.hero-cta .btn-p{background:var(--reed);color:var(--sandal);font-weight:700;box-shadow:0 8px 30px rgba(217,164,65,.35)}
.hero-cta .btn-p:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(217,164,65,.5)}
.hero-cta .btn-g{border:1px solid rgba(217,164,65,.55);color:var(--warm)}
.hero-cta .btn-g:hover{border-color:var(--reed);color:var(--reed);background:rgba(217,164,65,.08)}
.hero-seal{position:absolute;right:clamp(16px,7vw,110px);top:clamp(90px,16vh,150px);z-index:6;width:92px;height:92px;
  background:var(--seal);border-radius:10px;display:grid;place-items:center;transform:rotate(6deg);
  box-shadow:0 16px 50px rgba(26,26,26,.5),inset 0 0 0 3px var(--seal),inset 0 0 0 5px rgba(247,245,239,.85);animation:sealIn 1.2s .6s both}
.hero-seal span{font-family:var(--serif);font-weight:900;font-size:44px;color:var(--warm);line-height:1}
@keyframes sealIn{from{opacity:0;transform:rotate(6deg) scale(1.8)}to{opacity:1;transform:rotate(6deg) scale(1)}}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:6;font-family:var(--sg);font-size:10.5px;
  letter-spacing:4px;color:var(--sage);text-align:center;animation:bob 2.4s ease-in-out infinite}
.scroll-hint::after{content:"";display:block;width:1px;height:34px;margin:10px auto 0;
  background:linear-gradient(var(--reed),transparent)}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}
@media(max-width:960px){
  .hero-seal{width:58px;height:58px;top:76px;right:14px}
  .hero-seal span{font-size:28px}
  .hero-file{font-size:8.5px;letter-spacing:1.8px;white-space:nowrap}
  .hero-file .l{display:inline}
  .hero-file .sep{display:inline}
  .hero-inner{padding:110px 20px 130px}
  .sec-head{flex-wrap:wrap;row-gap:4px}
  .sec-head .en-sub{order:3;width:100%;margin-left:0}
}

/* 芦苇摇摆 */
.reed-sw{transform-origin:50% 100%;animation:sway 6s ease-in-out infinite}
.reed-sw.d2{animation-delay:-2s;animation-duration:7.5s}
.reed-sw.d3{animation-delay:-4s;animation-duration:5.2s}
@keyframes sway{0%,100%{transform:rotate(-1.6deg)}50%{transform:rotate(1.8deg)}}
.tw{animation:tw 4s ease-in-out infinite}
@keyframes tw{0%,100%{opacity:.25}50%{opacity:.9}}

/* ---------- 通用章节 ---------- */
section{position:relative}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px}
.sec-head{display:flex;align-items:baseline;gap:18px;border-bottom:2px solid currentColor;padding-bottom:16px;margin-bottom:14px}
.sec-head .no{font-family:var(--sg);font-size:44px;font-weight:700;line-height:1;opacity:.9}
.sec-head h2{font-family:var(--serif);font-size:clamp(26px,3.4vw,36px);font-weight:900;letter-spacing:4px}
.sec-head .en-sub{font-family:var(--sg);font-size:11px;letter-spacing:4px;margin-left:auto;text-transform:uppercase;opacity:.55}
.sec-lead{max-width:820px;font-size:15.5px;opacity:.85;margin:18px 0 44px}
.on-paper{background:var(--paper);color:var(--ink);padding:96px 0}
#map{padding-top:0}
.on-paper .sec-head .no{color:var(--ochre)}
.on-dark-sandal{background:var(--sandal);color:var(--warm);padding:96px 0}
.on-dark-sandal .sec-head .no{color:var(--reed)}
.on-dark-sandal .sec-lead{opacity:.75}
.on-ink{background:var(--dian-ink);color:var(--warm);padding:96px 0}
.on-ink .sec-head .no{color:var(--sage)}
.on-ink .sec-head .en-sub,.on-ink .sec-lead{opacity:.8}

/* ---------- 数字带 ---------- */
#stats{background:var(--sandal);color:var(--warm);padding:64px 0}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.stat{text-align:center;padding:26px 12px;border:1px solid rgba(168,191,168,.18);border-radius:14px;background:rgba(247,245,239,.03);transition:.3s}
.stat:hover{border-color:rgba(217,164,65,.5);transform:translateY(-4px)}
.stat .num{font-family:var(--sg);font-size:clamp(40px,4.6vw,58px);font-weight:700;color:var(--reed);line-height:1.1}
.stat .num small{font-size:.42em;font-weight:500;color:var(--sage);margin-left:4px;letter-spacing:1px}
.stat .lab{font-size:14px;letter-spacing:3px;margin-top:8px;color:rgba(247,245,239,.85)}
.stat .src{font-family:var(--sg);font-size:10px;letter-spacing:2px;color:var(--sage);opacity:.7;margin-top:4px}
.stat-foot{margin-top:26px;font-size:12px;color:var(--sage);text-align:center;letter-spacing:1px}

/* ---------- 释名 ---------- */
.name-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:26px;margin-top:14px}
.name-card{background:var(--warm);border:1px solid var(--mist);border-radius:16px;padding:36px 30px 30px;position:relative;overflow:hidden;
  box-shadow:0 4px 18px rgba(26,26,26,.05);transition:transform .35s,box-shadow .35s}
.name-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(26,26,26,.1)}
.name-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--ochre)}
.name-card:nth-child(2)::before{background:var(--violet)}
.name-card:nth-child(3)::before{background:var(--seal)}
.name-card .glyph{font-family:var(--serif);font-size:88px;font-weight:900;line-height:1;color:rgba(200,155,60,.16);position:absolute;right:14px;top:2px}
.name-card:nth-child(2) .glyph{color:rgba(122,59,102,.14)}
.name-card:nth-child(3) .glyph{color:rgba(181,64,46,.12)}
.name-card h3{font-family:var(--serif);font-size:30px;font-weight:900;letter-spacing:2px;margin-bottom:4px}
.name-card .py{font-family:var(--sg);font-size:11px;letter-spacing:3px;color:rgba(11,30,45,.62);text-transform:uppercase}
.name-card p{font-size:14.5px;margin-top:14px;color:rgba(26,26,26,.8);line-height:1.95}
.name-card p b{color:var(--violet);font-weight:700}
.name-decode{margin-top:34px;background:var(--sandal);border-radius:16px;padding:26px 32px;display:flex;flex-wrap:wrap;gap:14px 34px;align-items:center;color:var(--warm)}
.name-decode .cap{font-size:13px;letter-spacing:3px;color:var(--sage)}
.name-decode .way{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:1px}
.name-decode .way i{font-style:normal;color:var(--reed);margin:0 3px}
.name-decode .way small{font-family:var(--sg);font-weight:400;font-size:11px;color:var(--sage);letter-spacing:1px;margin-left:6px}
.name-quote{margin-top:34px;text-align:center}
.name-quote::before{content:"";display:block;width:150px;height:2px;margin:0 auto 20px;border-radius:2px;
  background:var(--grad-culture)}
.name-quote blockquote{font-family:var(--serif);font-size:clamp(19px,2.4vw,25px);font-weight:700;color:var(--violet);letter-spacing:3px;line-height:1.8}
.name-quote blockquote::before,.name-quote blockquote::after{content:"「";color:var(--ochre)}
.name-quote blockquote::after{content:"」"}
.name-quote cite{display:block;font-style:normal;font-size:12.5px;letter-spacing:3px;color:rgba(11,30,45,.62);margin-top:10px}

/* ---------- 内容版图 ---------- */
.theme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(252px,1fr));gap:18px}
.theme{position:relative;background:var(--warm);border:1px solid var(--mist);border-radius:14px;padding:26px 24px 22px;overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:default}
.theme:hover{transform:translateY(-5px);box-shadow:0 16px 38px rgba(26,26,26,.12)}
.theme::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--tc)}
.theme::after{content:attr(data-glyph);position:absolute;right:-6px;bottom:-26px;font-family:var(--serif);font-weight:900;
  font-size:110px;line-height:1;color:var(--tc);opacity:.08;transition:.35s}
.theme:hover::after{opacity:.16;transform:rotate(-4deg) scale(1.06)}
.theme h3{font-family:var(--serif);font-size:23px;font-weight:900;letter-spacing:3px;margin:2px 0 8px}
.theme h3 em{font-style:normal;display:inline-block;margin-left:8px;width:9px;height:9px;border-radius:50%;background:var(--tc);vertical-align:6px}
.theme p{font-size:13.5px;color:rgba(26,26,26,.8);line-height:1.85;position:relative;z-index:1}
.theme .t-tag{display:inline-block;margin-top:12px;font-family:var(--sg);font-size:10px;letter-spacing:2px;color:var(--tc);
  border:1px solid var(--tc);border-radius:4px;padding:2px 8px;opacity:.9}

/* ---------- 精选篇章 ---------- */
.ep-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.ep{background:linear-gradient(180deg,var(--sandal-hi),var(--sandal));border:1px solid rgba(217,164,65,.18);border-radius:16px;overflow:hidden;
  transition:transform .35s,box-shadow .35s,border-color .35s}
.ep:hover{transform:translateY(-7px);border-color:rgba(217,164,65,.5);box-shadow:0 24px 60px rgba(26,26,26,.5)}
.ep .cover{position:relative;height:172px;background:var(--cv);display:flex;align-items:flex-end;padding:18px 20px;overflow:hidden}
.ep .cover .wm{position:absolute;right:2px;top:-30px;font-family:var(--serif);font-weight:900;font-size:150px;line-height:1;
  color:rgba(247,245,239,.13);transition:.4s}
.ep:hover .cover .wm{transform:scale(1.08) rotate(-3deg)}
.ep .cover .vol{position:absolute;left:18px;top:16px;background:var(--seal);color:var(--warm);font-family:var(--sg);
  font-size:11px;font-weight:700;letter-spacing:2px;padding:5px 12px;border-radius:6px;box-shadow:0 6px 16px rgba(26,26,26,.4)}
.ep .cover .cat{font-family:var(--sg);font-size:10px;letter-spacing:3px;color:rgba(247,245,239,.85);text-transform:uppercase;
  position:absolute;right:18px;top:22px;border:1px solid rgba(247,245,239,.35);border-radius:99px;padding:3px 11px;backdrop-filter:blur(4px)}
.ep .cover .dur{font-family:var(--sg);font-size:11px;color:rgba(247,245,239,.9);letter-spacing:1px;display:flex;align-items:center;gap:7px;position:relative;z-index:2}
.ep .cover .dur svg{opacity:.9}
.ep .body{padding:22px 24px 24px}
.ep h3{font-family:var(--serif);font-size:22px;font-weight:900;color:var(--reed);letter-spacing:2px;margin-bottom:8px}
.ep .desc{font-size:13.5px;color:rgba(247,245,239,.66);line-height:1.85;min-height:50px}
.ep .meta{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px dashed rgba(217,164,65,.25);flex-wrap:wrap}
.ep .meta .chip{font-size:11.5px;letter-spacing:2px;color:var(--sage);border:1px solid rgba(168,191,168,.3);border-radius:4px;padding:3px 10px}
.ep .meta .chip.gold{color:var(--reed);border-color:rgba(217,164,65,.4)}
.ep-note{margin-top:30px;text-align:center;font-size:12.5px;color:var(--sage);letter-spacing:2px}

/* ---------- 叙事之法 ---------- */
.craft-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:10px}
.craft{background:var(--warm);border:1px solid var(--mist);border-radius:16px;padding:30px 26px;position:relative;transition:.35s}
.craft:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(26,26,26,.1)}
.craft .cn-no{font-family:var(--sg);font-size:13px;font-weight:700;letter-spacing:3px;color:var(--ochre)}
.craft h3{font-family:var(--serif);font-size:22px;font-weight:900;letter-spacing:2px;margin:8px 0 4px}
.craft .en{font-size:10.5px;letter-spacing:2.5px;color:rgba(11,30,45,.62);text-transform:uppercase}
.craft p{font-size:13.8px;color:rgba(26,26,26,.8);margin-top:14px;line-height:1.9}
.craft-quote{margin-top:46px;border-left:5px solid var(--ochre);background:var(--warm);border-radius:0 16px 16px 0;padding:30px 36px;
  font-family:var(--serif);font-size:clamp(18px,2.4vw,24px);font-weight:700;letter-spacing:2px;color:var(--dian-ink);line-height:1.9}
.craft-quote small{display:block;font-family:var(--sg);font-size:11px;letter-spacing:3px;color:rgba(11,30,45,.62);margin-top:10px;font-weight:400}

/* ---------- 平台矩阵 ---------- */
.plat-group{margin-bottom:36px}
.plat-group .pg-t{display:flex;align-items:center;gap:12px;font-size:15px;letter-spacing:3px;color:var(--sage);margin-bottom:16px}
.plat-group .pg-t::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(168,191,168,.35),transparent)}
.plat-group .pg-t b{color:var(--warm);font-weight:700}
.plat-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.plat{display:flex;align-items:center;gap:14px;background:rgba(247,245,239,.05);border:1px solid rgba(168,191,168,.2);
  border-radius:12px;padding:16px 18px;transition:.3s}
.plat:hover{border-color:var(--reed);background:rgba(217,164,65,.08);transform:translateY(-3px)}
.plat .ico{width:42px;height:42px;border-radius:10px;display:grid;place-items:center;flex:none;background:rgba(247,245,239,.08)}
.plat .ico svg{width:22px;height:22px}
.plat b{font-size:15px;letter-spacing:1px;display:block;color:var(--warm)}
.plat small{font-family:var(--sg);font-size:10px;letter-spacing:2px;color:var(--sage);text-transform:uppercase}
.plat-cta{margin-top:8px;text-align:center}
.plat-cta .search{display:inline-flex;align-items:center;gap:14px;margin:0;background:rgba(217,164,65,.1);border:1px solid rgba(217,164,65,.4);
  border-radius:99px;padding:14px 34px;font-size:15.5px;letter-spacing:2px;color:var(--reed);transition:.3s}
.plat-cta .search b{font-family:var(--serif);font-weight:900;letter-spacing:4px}
.plat-cta p{margin-top:14px;font-size:12px;color:var(--sage);letter-spacing:2px}

/* ---------- 愿景 ---------- */
#vision{background:var(--sandal);color:var(--warm);padding:110px 0;text-align:center;position:relative;overflow:hidden}
#vision .bg-glyph{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:var(--serif);font-weight:900;
  font-size:min(46vw,560px);color:rgba(217,164,65,.05);line-height:1;pointer-events:none;user-select:none}
#vision h2{font-family:var(--serif);font-size:clamp(24px,3.8vw,40px);font-weight:900;letter-spacing:5px;line-height:2;color:var(--warm);max-width:900px;margin:0 auto}
#vision h2 em{font-style:normal;color:var(--reed)}
#vision .from{margin-top:26px;font-size:13px;letter-spacing:4px;color:rgba(247,245,239,.55)}
#vision .rule{width:70px;height:3px;background:var(--seal);margin:30px auto 0;border-radius:2px}

/* ---------- 关于 · 出品 ---------- */
.about-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:44px;align-items:start;margin-top:36px}
@media(max-width:920px){.about-grid{grid-template-columns:1fr}.about-grid .about-card{position:static;padding:30px 20px}.about-grid .about-card h3{white-space:nowrap;font-size:17px;letter-spacing:1px}}
.about-card{position:sticky;top:96px;background:var(--warm);border:1px solid var(--mist);border-radius:18px;padding:38px 36px;box-shadow:0 6px 24px rgba(26,26,26,.06)}
.about-card .k{font-family:var(--sg);font-size:10.5px;letter-spacing:4px;color:var(--ochre);text-transform:uppercase}
.about-card h3{font-family:var(--serif);font-size:26px;font-weight:900;letter-spacing:2px;margin:6px 0 14px}
.about-card p{font-size:14.5px;color:rgba(26,26,26,.8);line-height:2}
.about-card p b{color:var(--violet)}
.brand-tree{display:flex;flex-direction:column;gap:14px}
.brand-node{border-radius:14px;padding:20px 24px;border:1px solid var(--mist);background:var(--warm);transition:.3s;position:relative;overflow:hidden}
.brand-node:hover{transform:translateX(6px)}
.brand-node.main{background:var(--lake);border-color:transparent}
.brand-node.now{border-color:var(--reed);box-shadow:0 0 0 1px var(--reed) inset}
.brand-node b{font-size:16.5px;letter-spacing:2px;display:block;color:var(--ink)}
.brand-node.main b{color:var(--warm)}
.brand-node small{font-family:var(--sg);font-size:10px;letter-spacing:2px;color:rgba(11,30,45,.62);text-transform:uppercase}
.brand-node.main small{color:var(--sage)}
.brand-node p{font-size:12.5px;color:rgba(26,26,26,.68);margin-top:6px;line-height:1.8}
.brand-node.main p{color:rgba(247,245,239,.75)}
.brand-node .tag-now{position:absolute;right:14px;top:14px;font-size:10px;letter-spacing:2px;color:var(--warm);
  background:var(--seal);border-radius:4px;padding:2px 8px}
.brand-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.brand-links a{font-family:var(--sg);font-size:12px;letter-spacing:1px;color:var(--dian-ink);border:1px solid var(--mist);
  background:var(--paper);border-radius:99px;padding:7px 16px;transition:.25s}
.brand-links a:hover{border-color:var(--ochre);color:var(--dian-ink)}

/* ---------- 合作 · 供稿（石墨观片台 · 胶片 · 朱印） ---------- */
#join{background:#2A3B4D}
#join .wrap{position:relative}
.nt-chop{position:absolute;top:96px;right:48px;z-index:5;pointer-events:none;
  font-size:38px;font-weight:700;letter-spacing:14px;color:#E2573F;
  border:3px solid #E2573F;border-radius:8px;padding:16px 16px 16px 30px;
  animation:chop-sway 2.8s ease-in-out infinite}
@keyframes chop-sway{0%,100%{transform:rotate(4deg)}50%{transform:rotate(14deg)}}
.join-head{margin:44px 0 36px}
.join-title{position:relative;font-family:var(--serif);font-weight:900;font-size:clamp(26px,3.2vw,36px);letter-spacing:6px;line-height:1.25;color:var(--warm);margin:0}
.join-title em{display:block;font-style:normal;color:var(--reed);font-size:clamp(46px,6vw,66px);letter-spacing:12px;line-height:1.15;margin-top:10px}
.join-sub{position:relative;font-size:15px;color:rgba(247,245,239,.68);line-height:1.9;margin-top:18px}
.join-ways{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
#join .plat{background:var(--paper);border-color:rgba(26,26,26,.14)}
#join .plat:hover{background:var(--paper);border-color:var(--ochre)}
#join .plat b{color:var(--ink)}
#join .plat small{font-size:11.5px;letter-spacing:1px;color:rgba(26,26,26,.55);line-height:1.55;display:block;margin-top:3px}
.join-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:18px;margin-top:36px}
.join{position:relative;border:1px solid rgba(247,245,239,.1);border-radius:6px;
  padding:38px 22px 44px;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;
  box-shadow:0 14px 34px rgba(4,10,16,.35);
  background:
    radial-gradient(4.5px 3px at 9px 50%,rgba(247,245,239,.5) 99%,transparent 100%) 0 8px/18px 16px repeat-x,
    radial-gradient(4.5px 3px at 9px 50%,rgba(247,245,239,.5) 99%,transparent 100%) 0 calc(100% - 18px)/18px 16px repeat-x,
    linear-gradient(rgba(247,245,239,.07),rgba(247,245,239,.07)) 0 6px/100% 20px no-repeat,
    linear-gradient(rgba(247,245,239,.07),rgba(247,245,239,.07)) 0 100%/100% 20px no-repeat,
    #0A0F16}
.join:hover{transform:translateY(-5px);border-color:rgba(217,164,65,.45);box-shadow:0 24px 48px rgba(4,10,16,.5)}
.join::after{content:attr(data-glyph);position:absolute;right:4px;top:30px;font-family:var(--serif);font-weight:900;
  font-size:92px;line-height:1;color:var(--reed);opacity:.14;transition:.35s}
.join:hover::after{opacity:.22;transform:rotate(-4deg) scale(1.05)}
.join .j-tag{display:inline-block;font-family:var(--sg);font-size:10px;letter-spacing:2px;color:var(--reed);
  border:1px solid rgba(217,164,65,.4);border-radius:4px;padding:2px 8px}
.join h3{position:relative;z-index:1;font-family:var(--serif);font-size:21px;font-weight:900;letter-spacing:3px;color:var(--warm);margin:12px 0 8px}
.join p{font-size:13px;color:rgba(247,245,239,.64);line-height:1.85;position:relative;z-index:1}
#join .plat-cta{margin-top:38px}

/* ---------- 页脚 ---------- */
footer{background:var(--sandal);color:rgba(247,245,239,.65);padding:56px 0 34px}
.foot-top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start;padding-bottom:28px;border-bottom:1px solid rgba(247,245,239,.1)}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-brand b{font-family:var(--serif);color:var(--reed);font-size:20px;letter-spacing:4px;display:block}
.foot-brand small{font-family:var(--sg);font-size:10px;letter-spacing:3px;color:var(--sage)}
.foot-slogan{font-family:var(--serif);font-size:15px;letter-spacing:4px;color:rgba(247,245,239,.8)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:26px;font-family:var(--sg);
  font-size:11px;letter-spacing:1.5px;color:rgba(247,245,239,.4)}
.foot-bot .copy{line-height:1.8}
.foot-bot .beian{display:flex;align-items:center;gap:18px}
.foot-bot a{display:inline-flex;align-items:center;gap:6px;transition:.25s}
.foot-bot a svg{width:13px;height:13px;flex:none}
.foot-bot a:hover{color:var(--reed)}

/* ---------- 移动端排版 ---------- */
@media(max-width:960px){
  .wrap{padding:0 20px}
  .eyebrow{font-size:11px;letter-spacing:4px;gap:8px;white-space:nowrap}
  .eyebrow::before,.eyebrow::after{width:20px}
  #hero .en-title{font-size:9.5px;letter-spacing:2px;white-space:nowrap}
  #hero .sub{font-size:9px;letter-spacing:.5px;white-space:nowrap}
  .name-decode .cap{flex-basis:100%}
  .l{display:block}
  .sep{display:none}
  .plat-cta .search{white-space:nowrap;font-size:13px;letter-spacing:1px;padding:12px 18px;gap:8px}
  .plat-cta .search b{letter-spacing:2px}
  #join .plat-cta .search{display:block;white-space:normal;font-size:13.5px;letter-spacing:2px;padding:14px 20px;line-height:1.9}
  #join .plat-cta .search .r2{display:block}
  .brand-links{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
  .brand-links a{font-size:10.5px;letter-spacing:.5px;padding:7px 2px;text-align:center;white-space:nowrap}
  .join-head{margin:30px 0 26px}
  .nt-chop{top:112px;right:28px;font-size:26px;letter-spacing:9px;padding:11px 11px 11px 20px;border-width:2px}
  .join-title em{letter-spacing:8px}
  .join-ways{grid-template-columns:repeat(2,1fr);gap:12px}
  #join .plat b{font-size:14px}
  #join .plat small{font-size:10px;letter-spacing:.5px;line-height:1.5}
  .join-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .join{padding:28px 16px 36px}
  .join::after{font-size:60px;top:22px;right:2px}
  .join h3{font-size:17px;letter-spacing:2px}
  .join p{font-size:11.5px}
  .join .j-tag{font-size:8.5px;padding:2px 6px}
  #join .cta-req .dot{display:none}
  #join .cta-req .seg{display:block;line-height:2}
  #join .sec-head .en-sub-tail{display:none}
  .foot-bot{flex-direction:column;text-align:center;gap:12px}
  .foot-bot .copy{font-size:10.5px;letter-spacing:1px}
  .foot-bot .beian{flex-direction:column;gap:0;align-items:center}
}

/* ---------- 入场动画（.js 前缀：脚本被禁用时内容直接可见） ---------- */
.js .reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.js .reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}.d4{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}