:root{
  --paper:#faf7f2;
  --paper-2:#f3eee6;
  --ink:#2c2c2a;
  --ink-2:#5f5e5a;
  --ink-3:#888780;
  --line:#e2dccf;
  --line-2:#c9c2b2;
  --seal:#9e2b25;
  --seal-soft:#f6e9e7;
  --jade:#0f6e56;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper)}
body[data-lang="en"] .zh{display:none !important}
body[data-lang="zh"] .en{display:none !important}

.proto-bar{background:var(--ink);color:#f5f2ea;font-size:13px;text-align:center;padding:6px 16px;letter-spacing:.02em}
.proto-bar b{color:#f0c9c4}

header.site{position:sticky;top:0;z-index:50;background:rgba(250,247,242,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav{max-width:1080px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.brand .mark{width:30px;height:30px;flex:none}
.brand .name{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.04em}
.nav-links{display:flex;gap:24px;margin-left:auto;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--ink-2);text-decoration:none;font-size:14.5px;padding:4px 0;border-bottom:2px solid transparent;white-space:nowrap}
.nav-links a:hover{color:var(--ink)}
.nav-links a.on{color:var(--seal);border-bottom-color:var(--seal)}
.lang-btn{flex:none;margin-left:8px;border:1px solid var(--line-2);background:transparent;color:var(--ink);font-size:13px;padding:5px 14px;border-radius:999px;cursor:pointer;font-family:var(--sans)}
.lang-btn:hover{border-color:var(--seal);color:var(--seal)}

.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
section.blk{padding:72px 0}
section.blk.tight{padding:48px 0}
.kicker{font-size:13px;letter-spacing:.28em;text-transform:uppercase;color:var(--seal);margin-bottom:14px}
h1{font-family:var(--serif);font-size:clamp(30px,4.6vw,46px);font-weight:600;line-height:1.3;letter-spacing:.02em}
h2{font-family:var(--serif);font-size:clamp(24px,3.4vw,32px);font-weight:600;line-height:1.4;margin-bottom:8px}
h3{font-family:var(--serif);font-size:19px;font-weight:600;line-height:1.5}
.sub{color:var(--ink-2);font-size:17px;max-width:760px}
.lead{color:var(--ink-2);font-size:17.5px;max-width:760px}
p.body{color:var(--ink-2);max-width:780px}
.divider{width:56px;height:2px;background:var(--seal);margin:22px 0 28px}

.hero{position:relative;overflow:hidden}
.hero .bg{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;display:block}
.hero .overlay{position:absolute;inset:0;background:rgba(250,247,242,.62)}
.hero .caption{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:24px}
.hero .caption h1{max-width:800px}
.hero .caption .sub{margin-top:14px;text-align:center}
.hero .subtitle{font-family:var(--serif);font-size:clamp(17px,2.4vw,22px);color:var(--ink);letter-spacing:.08em;margin-top:18px;text-align:center}
.hero .tagline{font-size:clamp(14px,1.9vw,16.5px);color:var(--ink-2);margin-top:10px;text-align:center}
.hero .caption .sub{margin-top:16px}
.hero .slogan{font-family:var(--serif);font-size:clamp(15px,2vw,19px);color:var(--seal);letter-spacing:.35em;margin-top:18px}

.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:860px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 26px}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px}
.card .num{font-family:var(--serif);font-size:15px;color:var(--seal);letter-spacing:.2em;margin-bottom:10px;display:block}
.card:hover{border-color:var(--line-2)}

.tile{display:block;text-decoration:none;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px 26px;transition:border-color .15s}
.tile:hover{border-color:var(--seal)}
.tile .zh-tag{font-size:13px;color:var(--seal);letter-spacing:.15em;margin-bottom:10px;display:block}
.tile h3{margin-bottom:8px}
.tile p{color:var(--ink-2);font-size:15px}

.quote{border-left:3px solid var(--seal);padding:6px 0 6px 22px;font-family:var(--serif);font-size:18px;color:var(--ink);max-width:760px;line-height:1.9}

.band{position:relative;margin:0}
.band img{width:100%;height:auto;display:block;border-radius:18px}
.band .cap{position:absolute;top:33%;right:5%;transform:translateY(-50%);width:min(46%,520px);text-align:left;font-family:var(--serif);color:var(--ink);font-size:clamp(20px,2.9vw,31px);letter-spacing:.1em;line-height:1.85}
@media(max-width:700px){.band .cap{position:static;transform:none;width:auto;margin-top:22px;text-align:center;font-size:clamp(19px,4.6vw,24px)}}

.phase{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.phase{grid-template-columns:1fr}}
.phase .card .dur{font-size:13px;color:var(--jade);letter-spacing:.12em;margin-bottom:6px;display:block}

.list-num{counter-reset:li;list-style:none}
.list-num li{counter-increment:li;position:relative;padding-left:44px;margin-bottom:16px;color:var(--ink-2)}
.list-num li::before{content:counter(li,decimal-leading-zero);position:absolute;left:0;top:2px;font-family:var(--serif);color:var(--seal);font-size:15px;letter-spacing:.05em}
.list-num li b{color:var(--ink)}

.figure{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.figure img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}
.figure figcaption{padding:12px 16px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}

.portrait{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.portrait img{display:block;width:100%;height:auto;aspect-ratio:4/5;object-fit:cover}
.portrait figcaption{padding:12px 16px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}

form.proto{background:#fff;border:1px solid var(--line);border-radius:16px;padding:36px 32px}
form.proto .row{margin-bottom:20px}
form.proto label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
form.proto input,form.proto select,form.proto textarea{width:100%;border:1px solid var(--line-2);border-radius:8px;padding:11px 14px;font-size:15px;font-family:var(--sans);background:var(--paper);color:var(--ink)}
form.proto input:focus,form.proto select:focus,form.proto textarea:focus{outline:2px solid var(--seal);outline-offset:1px;border-color:var(--seal)}
form.proto textarea{min-height:120px;resize:vertical}
.btn{display:inline-block;background:var(--seal);color:#fff;border:none;border-radius:999px;padding:13px 36px;font-size:16px;font-family:var(--sans);cursor:pointer;text-decoration:none;letter-spacing:.04em}
.btn:hover{background:#82211c}
.btn.ghost{background:transparent;color:var(--seal);border:1.5px solid var(--seal)}
.btn.ghost:hover{background:var(--seal-soft)}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px}

.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;padding:16px 0;font-size:15.5px;list-style:none;position:relative;padding-right:26px}
.faq summary::after{content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);color:var(--seal);font-size:18px}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);padding:0 0 18px;font-size:15px}

footer.site{background:var(--ink);color:#cfcabd;padding:56px 0 36px;margin-top:40px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr;gap:40px}
@media(max-width:700px){footer.site .cols{grid-template-columns:1fr}}
footer.site .brand-f{font-family:var(--serif);color:#f2ede2;font-size:19px;letter-spacing:.06em;margin-bottom:12px}
footer.site p{font-size:14px;line-height:1.9}
footer.site .fine{border-top:1px solid #4a4a46;margin-top:36px;padding-top:20px;font-size:12.5px;color:#9b968a;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

.pending{display:inline-block;border:1.5px dashed var(--seal);color:var(--seal);border-radius:6px;padding:1px 10px;font-size:13px}
.card .contact-link{color:var(--seal);text-decoration:none;border-bottom:1px solid var(--seal-soft);padding-bottom:1px;word-break:break-all;transition:border-color .15s}
.card .contact-link:hover{border-bottom-color:var(--seal)}
.toc{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(max-width:700px){.toc{grid-template-columns:1fr}}
.toc a{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink-2);font-size:14.5px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:13px 18px}
.toc a:hover{border-color:var(--seal);color:var(--seal)}
.toc a .n{font-family:var(--serif);color:var(--seal);font-size:13px}

.sprite{position:absolute;width:0;height:0;overflow:hidden}
.ico-16{width:16px;height:16px;display:block;flex:none}
.cta-row{display:flex;gap:16px;flex-wrap:wrap;margin-top:32px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
@media(max-width:860px){.two-col{grid-template-columns:1fr}}
.tag-line{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.tag-line span{border:1px solid var(--line-2);border-radius:999px;padding:4px 14px;font-size:13px;color:var(--ink-2)}

/* ===== 流派页：共性总纲横幅 ===== */
.core-banner{background:var(--seal-soft);border:1.5px solid var(--seal);border-radius:16px;padding:36px 30px;text-align:center;max-width:860px;margin:0 auto}
.core-banner .kicker{margin-bottom:16px}
.core-line{font-family:var(--serif);font-size:clamp(19px,2.6vw,25px);line-height:1.65;letter-spacing:.02em}
.core-line b{color:var(--seal)}
.core-sub{color:var(--ink-2);font-size:15px;margin-top:10px}

/* ===== 流派卡片：年代一行 ===== */
.card .era{display:block;font-size:13px;color:var(--ink-3);letter-spacing:.05em;margin-top:2px}

/* ===== 传承谱系图（组织架构式）===== */
.lineage{max-width:780px;margin:8px auto 0;text-align:center}
.lg-root{display:flex;justify-content:center}
.lg-drop{width:1.5px;height:22px;background:var(--line-2);margin:0 auto}
.lg-bar{height:1.5px;background:var(--line-2);width:50%;margin:0 auto}
.lg-branches{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.lg-branch{position:relative;display:flex;flex-direction:column;align-items:center}
.lg-branch::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:1.5px;height:22px;background:var(--line-2)}
.lg-branch .lg-node:first-of-type{margin-top:22px}
.lg-node{background:#fff;border:1.5px solid var(--line-2);border-radius:12px;padding:14px 26px;min-width:220px;max-width:100%}
.lg-node b{display:block;font-family:var(--serif);font-size:18px;letter-spacing:.08em}
.lg-node .lg-era{display:block;font-size:12.5px;color:var(--ink-2);margin-top:4px}
.lg-node .lg-src{display:block;font-size:12px;color:var(--seal);margin-top:3px}
.lg-node.root{border-color:var(--seal);background:var(--seal-soft)}
.lg-stem{width:1.5px;height:26px;background:var(--line-2)}
.lineage-note{max-width:760px;margin:30px auto 0;text-align:center;color:var(--ink-2);font-size:14.5px}
@media(max-width:640px){
  .lg-bar,.lg-branch::before{display:none}
  .lg-drop{margin-bottom:0}
  .lg-branches{grid-template-columns:1fr;gap:26px}
  .lg-branch .lg-node:first-of-type{margin-top:0}
}

/* ===== 标题旁的定制提示徽章 ===== */
h2.h-flex{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.h-note{font-family:var(--sans);font-size:12.5px;font-weight:400;color:var(--seal);border:1px solid var(--seal);border-radius:999px;padding:3px 14px;letter-spacing:.06em;white-space:nowrap}

/* ===== 背景音乐控制（固定右下角）===== */
.bgm{position:fixed;right:22px;bottom:22px;z-index:60}
.bgm-btn{display:flex;align-items:center;gap:9px;background:rgba(255,255,255,.94);border:1px solid var(--line-2);border-radius:999px;padding:9px 16px 9px 13px;cursor:pointer;font-family:var(--sans);font-size:13.5px;color:var(--ink-2);box-shadow:0 4px 18px rgba(44,44,42,.10);backdrop-filter:blur(6px);transition:border-color .15s,color .15s,box-shadow .15s}
.bgm-btn:hover{border-color:var(--seal);color:var(--seal)}
.bgm-ico{width:17px;height:17px;flex:none;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.bgm-bars{display:none;align-items:flex-end;gap:2.5px;height:13px}
.bgm-bars i{width:2.5px;background:var(--seal);border-radius:1px;animation:bgmWave 1s ease-in-out infinite}
.bgm-bars i:nth-child(1){height:6px;animation-delay:0s}
.bgm-bars i:nth-child(2){height:12px;animation-delay:.18s}
.bgm-bars i:nth-child(3){height:8px;animation-delay:.36s}
@keyframes bgmWave{0%,100%{transform:scaleY(.45)}50%{transform:scaleY(1)}}
.bgm.is-on .bgm-btn{border-color:var(--seal);color:var(--seal)}
.bgm.is-on .bgm-bars{display:flex}
.bgm.is-on .bgm-ico{display:none}
.bgm.is-missing .bgm-btn{border-color:var(--line-2);color:var(--ink-3)}
@media(max-width:600px){.bgm{right:14px;bottom:14px}.bgm-btn{font-size:12.5px;padding:8px 13px 8px 11px}}

/* ===== 印章红引句（反直觉理念的钩子）===== */
.pull-quote{margin-top:30px;padding:18px 26px;border-left:3px solid var(--seal);background:var(--seal-soft);border-radius:0 12px 12px 0;font-family:var(--serif);font-size:clamp(16.5px,2.1vw,21px);line-height:1.75;color:var(--ink);max-width:840px;letter-spacing:.01em}
.pull-quote b{color:var(--seal);font-weight:600}