/* =====================================================================
   FS Global Ferticare · 方案 C「夜幕殿堂」设计系统 v1（2026-10-20）
   - 全部类名以 c- 开头，可与现网样式并存，逐模板接入。
   - 预览稿用 Google Fonts；正式站改为自托管（见规格 §2.3），只需替换
     --c-serif / --c-latin 的字体名，不改其他规则。
   ===================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  /* 表面 */
  --c-night:#060A13; --c-night-2:#0A1120; --c-navy:#0F1B33; --c-navy-2:#152645;
  --c-paper:#F4EFE6; --c-paper-2:#ECE5D6; --c-ivory:#EEE7D8;
  /* 文字 */
  --c-iv:#EEE7D8; --c-iv-2:rgba(238,231,216,.74); --c-iv-3:rgba(238,231,216,.58);
  --c-ink:#16140F; --c-ink-2:#4A453B; --c-ink-3:#5F594D;
  /* 金 */
  --c-gold:#C9AF7A; --c-gold-2:#E7D3A5; --c-gold-ink:#76592A;
  /* 线 */
  --c-line:rgba(238,231,216,.1); --c-gline:rgba(201,175,122,.28); --c-pline:rgba(22,20,15,.14); --c-pline-2:rgba(22,20,15,.24);
  /* 字体 */
  --c-serif:"FS Serif SC","Noto Serif SC","Songti SC","STSong",serif;
  --c-latin:"FS Latin","Cormorant","Cormorant Garamond",Didot,"Bodoni 72",Georgia,serif;
  --c-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",sans-serif;
  /* 尺寸 */
  --c-wrap:1240px; --c-read:680px; --c-gut:clamp(20px,4.2vw,64px);
  --c-sec:clamp(96px,12vw,190px); --c-hdr:88px;
  /* 动效 */
  --c-ease:cubic-bezier(.2,.7,.2,1); --c-t-ui:.25s; --c-t-hover:.5s; --c-t-reveal:1.2s; --c-t-draw:1.6s;
}

/* ---------- 2. Base ---------- */
.c *, .c *::before, .c *::after{box-sizing:border-box}
.c,.c *{font-feature-settings:"lnum" 1}
.c{margin:0;background:var(--c-night);color:var(--c-iv);font:300 16px/1.95 var(--c-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-variant-numeric:lining-nums;overflow-x:hidden}
.c :where(h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd){margin:0;padding:0}
.c :where(ul,ol){list-style:none}
.c a{color:inherit;text-decoration:none}
.c img{display:block;max-width:100%;height:auto}
.c :focus-visible{outline:1px solid var(--c-gold);outline-offset:4px}
.c button{font:inherit;color:inherit}
.c-grain::after{content:"";position:fixed;inset:0;pointer-events:none;z-index:90;opacity:.5;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .045 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.c-wrap{max-width:calc(var(--c-wrap) + var(--c-gut)*2);margin:0 auto;padding:0 var(--c-gut)}
.c-sec{position:relative;padding:var(--c-sec) 0}
.c-sec--night2{background:var(--c-night-2)}
.c-sec--navy{background:var(--c-navy)}
.c-sec--pres{background:linear-gradient(180deg,var(--c-night) 0%,var(--c-navy) 50%,var(--c-night) 100%)}
.c-sec--paper{background:var(--c-paper);color:var(--c-ink)}
.c-center{text-align:center}
.c-skip{position:absolute;left:-9999px;top:8px;z-index:200;background:var(--c-gold);color:var(--c-night);padding:10px 16px}
.c-skip:focus{left:8px}

/* ---------- 3. Typography ---------- */
.c-kicker{display:flex;align-items:center;justify-content:center;gap:18px;font:400 12px/1.4 var(--c-sans);letter-spacing:.42em;color:var(--c-gold);text-transform:uppercase}
.c-kicker b{font:300 italic 26px/1 var(--c-latin);letter-spacing:0;text-transform:none}
.c-kicker::before,.c-kicker::after{content:"";flex:none;width:48px;height:1px;background:var(--c-gline)}
.c-kicker--l{justify-content:flex-start}
.c-kicker--l::after{display:none}
.c-h2{margin-top:30px;font:300 clamp(30px,3.8vw,56px)/1.3 var(--c-serif);letter-spacing:.1em;color:var(--c-iv)}
.c-h2 em{font-style:normal;color:var(--c-gold-2)}
.c-sub{margin-top:28px;color:var(--c-iv-2);font-size:15.5px}
.c-center .c-sub{max-width:36em;margin-left:auto;margin-right:auto}
:lang(en) .c-h2,:lang(ru) .c-h2,:lang(en) .c-h1,:lang(ru) .c-h1{letter-spacing:.01em}
/* 英文、俄文页：标题改用拉丁 / 西里尔字形完整的 Cormorant，中文衬线只作后备 */
:lang(en),:lang(ru){--c-serif:"FS Latin","Cormorant","FS Serif SC","Noto Serif SC",Georgia,serif}
.c-sec--paper .c-kicker{color:var(--c-gold-ink)}
.c-sec--paper .c-kicker::before,.c-sec--paper .c-kicker::after{background:var(--c-pline-2)}
.c-sec--paper .c-h2{color:var(--c-ink)}
.c-sec--paper .c-h2 em{color:var(--c-gold-ink)}
.c-sec--paper .c-sub{color:var(--c-ink-2)}

/* ---------- 4. Links & buttons ---------- */
.c-lk{display:inline-flex;align-items:center;gap:14px;font:400 13.5px/1.4 var(--c-sans);letter-spacing:.24em;color:var(--c-gold-2);padding-bottom:10px;border-bottom:1px solid var(--c-gline);transition:gap var(--c-t-hover) var(--c-ease),border-color var(--c-t-hover)}
.c-lk:hover{gap:22px;border-color:var(--c-gold)}
.c-lk i{font-style:normal;font-family:var(--c-latin);font-size:18px;letter-spacing:0}
.c-sec--paper .c-lk{color:var(--c-ink);border-color:var(--c-pline-2)}
.c-btn{position:relative;z-index:0;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:16px;height:58px;padding:0 40px;border:1px solid var(--c-gold);color:var(--c-gold-2);font:400 14.5px/1 var(--c-sans);letter-spacing:.32em;background:none;cursor:pointer;transition:color var(--c-t-hover)}
.c-btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--c-gold);transform:translateY(101%);transition:transform var(--c-t-hover) var(--c-ease)}
.c-btn:hover{color:var(--c-night)}
.c-btn:hover::before{transform:none}
.c-btn--solid{background:var(--c-gold);color:var(--c-night)}
.c-btn--solid::before{background:var(--c-gold-2)}

/* ---------- 5. Header ---------- */
.c-hdr{position:fixed;top:0;left:0;right:0;z-index:50;border-bottom:1px solid transparent;transition:background var(--c-t-hover),border-color var(--c-t-hover),height var(--c-t-ui)}
.c-hdr.is-solid,.c-hdr--solid{background:rgba(6,10,19,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-color:var(--c-line)}
.c-hdr .c-wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:var(--c-hdr);transition:height var(--c-t-ui)}
.c-hdr.is-solid .c-wrap{height:min(72px,var(--c-hdr))}
.c-nav{display:flex;align-items:center;gap:30px;font:400 13px/1 var(--c-sans);letter-spacing:.18em;color:var(--c-iv-2)}
.c-nav a{position:relative;padding:8px 0}
.c-nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:1px;background:var(--c-gold);transition:left var(--c-t-ui),right var(--c-t-ui)}
.c-nav a:hover,.c-nav a[aria-current]{color:var(--c-gold-2)}
.c-nav a:hover::after,.c-nav a[aria-current]::after{left:0;right:0}
.c-nav--r{justify-content:flex-end}
.c-crest{display:flex;flex-direction:column;align-items:center;gap:7px}
.c-crest img{width:44px;height:44px;transition:width var(--c-t-ui),height var(--c-t-ui)}
.c-hdr.is-solid .c-crest img{width:36px;height:36px}
.c-crest span{font:500 10.5px/1 var(--c-latin);letter-spacing:.42em;color:var(--c-gold-2);text-transform:uppercase;transition:opacity var(--c-t-ui)}
.c-hdr.is-solid .c-crest span{opacity:0;height:0;margin-top:-7px}
.c-lang{font:400 12px/1 var(--c-latin);letter-spacing:.18em;color:var(--c-iv-3)}
.c-lang a[aria-current]{color:var(--c-iv);font-weight:500}
.c-hdr .c-cta{border:1px solid var(--c-gline);padding:12px 20px;color:var(--c-gold-2);transition:border-color var(--c-t-ui),background var(--c-t-ui)}
.c-hdr .c-cta::after{display:none}
.c-hdr .c-cta:hover{border-color:var(--c-gold);background:rgba(201,175,122,.08)}
.c-burger{display:none;justify-self:end;width:44px;height:44px;border:0;background:none;cursor:pointer;position:relative}
.c-burger::before,.c-burger::after{content:"";position:absolute;left:8px;right:8px;height:1px;background:var(--c-gold-2);transition:transform var(--c-t-ui),top var(--c-t-ui)}
.c-burger::before{top:16px}.c-burger::after{top:27px}
.c-burger[aria-expanded="true"]::before{top:22px;transform:rotate(45deg)}
.c-burger[aria-expanded="true"]::after{top:22px;transform:rotate(-45deg)}
.c-drawer{position:fixed;inset:0;z-index:49;background:var(--c-night);padding:110px var(--c-gut) 40px;display:flex;flex-direction:column;visibility:hidden;opacity:0;transition:opacity .4s,visibility .4s}
.c-drawer.is-open{visibility:visible;opacity:1}
.c-drawer nav a{display:block;padding:14px 0;border-bottom:1px solid var(--c-line);font:300 26px/1.3 var(--c-serif);letter-spacing:.12em;opacity:0;transform:translateY(12px);transition:opacity .5s var(--c-ease),transform .5s var(--c-ease)}
.c-drawer.is-open nav a{opacity:1;transform:none}
.c-drawer nav a:nth-child(2){transition-delay:.04s}.c-drawer nav a:nth-child(3){transition-delay:.08s}.c-drawer nav a:nth-child(4){transition-delay:.12s}.c-drawer nav a:nth-child(5){transition-delay:.16s}.c-drawer nav a:nth-child(6){transition-delay:.2s}.c-drawer nav a:nth-child(7){transition-delay:.24s}.c-drawer nav a:nth-child(8){transition-delay:.28s}
.c-drawer .c-lang{margin-top:28px;font-size:15px}
.c-drawer .c-btn{margin-top:auto}

/* ---------- 6. Hero（首页） ---------- */
.c-hero{position:relative;min-height:max(800px,100vh);display:flex;flex-direction:column;justify-content:center;padding:150px 0 0;overflow:hidden;background:radial-gradient(70% 60% at 50% 46%,rgba(36,62,110,.55) 0%,rgba(15,27,51,.4) 40%,rgba(6,10,19,0) 72%),radial-gradient(40% 40% at 50% 46%,rgba(201,175,122,.08),transparent 70%),var(--c-night)}
.c-dial{position:absolute;left:50%;top:46%;width:min(1040px,132vw);aspect-ratio:1;transform:translate(-50%,-50%);pointer-events:none}
.c-dial svg{width:100%;height:100%}
.c-dial .c-dial-a{animation:c-spin 240s linear infinite}
.c-dial .c-dial-b{position:absolute;inset:0;animation:c-spin 180s linear infinite reverse}
@keyframes c-spin{to{transform:rotate(360deg)}}
.c-hero-in{position:relative;text-align:center}
.c-hero-kick{font:400 13px/1.8 var(--c-latin);letter-spacing:.5em;color:var(--c-iv-3);text-transform:uppercase}
.c-hero-kick span{color:var(--c-gold)}
.c-h1{margin-top:44px;font:300 clamp(40px,6.2vw,96px)/1.18 var(--c-serif);letter-spacing:.14em;padding-left:.14em;color:var(--c-iv)}
.c-h1 span{display:block;color:var(--c-gold-2)}
.c-motto{display:flex;align-items:center;justify-content:center;gap:22px;margin-top:40px;font:400 16px/1 var(--c-serif);letter-spacing:.5em;color:var(--c-iv-2)}
.c-motto::before,.c-motto::after{content:"";width:56px;height:1px;background:var(--c-gline)}
.c-en{margin-top:18px;font:300 italic 20px/1.4 var(--c-latin);color:var(--c-iv-3);letter-spacing:.04em}
.c-hero .c-lead{max-width:36em;margin:36px auto 0;font-size:15px;color:var(--c-iv-2);line-height:2}
.c-acts{display:flex;justify-content:center;align-items:center;gap:40px;margin-top:52px;flex-wrap:wrap}
.c-note{margin:26px auto 0;font-size:12px;color:var(--c-iv-3);max-width:44em;line-height:1.8}
.c-stats{position:relative;margin-top:clamp(80px,9vw,130px);border-top:1px solid var(--c-line);display:grid;grid-template-columns:repeat(5,1fr)}
.c-stats div{padding:34px 0 40px;text-align:center;border-left:1px solid var(--c-line)}
.c-stats div:first-child{border-left:0}
.c-stats b{display:block;font:300 clamp(40px,4.2vw,62px)/1 var(--c-latin);color:var(--c-gold-2)}
.c-stats sup{font:400 .34em/1 var(--c-serif);margin-left:4px;vertical-align:1.3em;color:var(--c-gold)}
.c-stats span{display:block;margin-top:14px;font-size:12.5px;letter-spacing:.3em;color:var(--c-iv-3)}

/* ---------- 7. 序章 · 双入口 ---------- */
.c-prose-c{max-width:48em;margin:56px auto 0;text-align:center}
.c-lede{font:300 clamp(19px,1.7vw,24px)/2 var(--c-serif);letter-spacing:.06em;color:var(--c-iv)}
.c-prose-c .c-sm{margin-top:32px;font-size:15px;color:var(--c-iv-2)}
.c-prose-c .c-lk{margin-top:44px}
.c-fine{margin-top:26px;font-size:12px;color:var(--c-iv-3)}
.c-gates{display:grid;grid-template-columns:1fr 1fr;margin-top:clamp(90px,10vw,150px);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.c-gate{position:relative;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:46px clamp(0px,3vw,48px) 46px 0;transition:background var(--c-t-hover)}
.c-gate+.c-gate{border-left:1px solid var(--c-line);padding-left:clamp(24px,3vw,48px)}
.c-gate:hover{background:rgba(201,175,122,.04)}
.c-gate-main::after{content:"";position:absolute;inset:0}
.c-gate small{display:block;font:400 11.5px/1 var(--c-sans);letter-spacing:.34em;color:var(--c-gold);text-transform:uppercase}
.c-gate b{display:block;margin-top:16px;font:300 clamp(22px,2vw,28px)/1.4 var(--c-serif);letter-spacing:.1em}
.c-gate>div>span{display:block;margin-top:8px;font-size:14px;color:var(--c-iv-3)}
.c-gate-sub{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:6px 22px;margin-top:16px}
.c-gate-sub a{font-size:12.5px;letter-spacing:.12em;color:var(--c-gold-2);border-bottom:1px solid var(--c-gline);padding-bottom:3px}
.c-gate-sub a:hover{border-color:var(--c-gold)}
.c-arrow{flex:none;width:60px;height:60px;border-radius:50%;border:1px solid var(--c-gline);display:grid;place-items:center;font:300 22px/1 var(--c-latin);color:var(--c-gold-2);transition:background var(--c-t-ui),color var(--c-t-ui)}
.c-gate:hover .c-arrow{background:var(--c-gold);color:var(--c-night)}

/* ---------- 8. 三地 · 关于 ---------- */
.c-quote{font:300 italic clamp(28px,3.8vw,58px)/1.32 var(--c-latin);text-align:center;max-width:19em;margin:56px auto 0;color:var(--c-iv)}
.c-cities{display:grid;grid-template-columns:repeat(3,1fr);margin-top:clamp(90px,9vw,140px)}
.c-cities div{text-align:center;padding:0 20px}
.c-cities div+div{border-left:1px solid var(--c-line)}
.c-cities .n{font:300 clamp(42px,4.6vw,72px)/1 var(--c-latin);color:var(--c-gold-2)}
.c-cities .cn{margin-top:20px;font:400 14px/1 var(--c-serif);letter-spacing:.6em;padding-left:.6em;color:var(--c-iv-2)}
.c-cities .co{margin-top:14px;font-size:12.5px;color:var(--c-iv-3);letter-spacing:.06em}
.c-split{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(40px,7vw,120px);align-items:start}
.c-about{margin-top:clamp(110px,11vw,170px)}
.c-split .c-sm{margin-top:28px;color:var(--c-iv-2);font-size:15px;max-width:30em}
.c-split .c-lk{margin-top:36px}
.c-pillars article{display:grid;grid-template-columns:70px 1fr;padding:34px 0;border-top:1px solid var(--c-line)}
.c-pillars article:last-child{border-bottom:1px solid var(--c-line)}
.c-pillars .n{font:300 italic 30px/1 var(--c-latin);color:var(--c-gold)}
.c-pillars h3{font:400 20px/1.5 var(--c-serif);letter-spacing:.12em}
.c-pillars p{margin-top:10px;font-size:14.5px;color:var(--c-iv-2)}

/* ---------- 9. 服务 · 生态 ---------- */
.c-svc{display:grid;grid-template-columns:repeat(3,1fr);margin-top:80px;border-top:1px solid var(--c-gline)}
.c-svc a{position:relative;padding:48px 40px 52px;border-bottom:1px solid var(--c-gline);min-height:340px;display:flex;flex-direction:column}
.c-svc a:not(:nth-child(3n+1)){border-left:1px solid var(--c-gline)}
.c-svc a::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 60% at 50% 0%,rgba(201,175,122,.12),transparent 70%);opacity:0;transition:opacity .6s}
.c-svc a:hover::after{opacity:1}
.c-svc .n{font:300 64px/1 var(--c-latin);color:transparent;-webkit-text-stroke:1px var(--c-gold)}
.c-svc h3{margin-top:auto;padding-top:40px;font:400 22px/1.45 var(--c-serif);letter-spacing:.12em}
.c-svc small{display:block;margin-top:6px;font:300 italic 16px/1.3 var(--c-latin);color:var(--c-gold);letter-spacing:.02em}
.c-svc p{margin-top:14px;font-size:14px;color:var(--c-iv-2)}
.c-eco{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:48px}
.c-eco a{position:relative;overflow:hidden;padding:48px;min-height:300px;display:flex;flex-direction:column;border:1px solid var(--c-gline);background:linear-gradient(150deg,rgba(21,38,69,.9),rgba(10,17,32,.9))}
.c-eco a:nth-child(2){background:linear-gradient(150deg,rgba(72,56,30,.85),rgba(20,15,8,.9))}
.c-eco a::before{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;border:1px solid rgba(201,175,122,.22);box-shadow:0 0 0 46px rgba(201,175,122,.03),0 0 0 47px rgba(201,175,122,.14);transition:transform 1.2s var(--c-ease)}
.c-eco a:hover::before{transform:scale(1.08)}
.c-eco small{font:400 11.5px/1 var(--c-sans);letter-spacing:.34em;color:var(--c-gold);text-transform:uppercase}
.c-eco h3{margin-top:auto;font:300 clamp(34px,3.4vw,48px)/1.1 var(--c-latin);color:var(--c-iv)}
.c-eco h4{margin-top:10px;font:400 16px/1.5 var(--c-serif);letter-spacing:.2em;color:var(--c-gold-2)}
.c-eco p{margin-top:12px;font-size:14px;color:var(--c-iv-2);max-width:28em}
.c-eco em{margin-top:22px;font-style:normal;font-size:12.5px;letter-spacing:.2em;color:var(--c-gold-2)}

/* ---------- 10. 案例 ---------- */
.c-cases{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:20px;margin-top:80px}
.c-case{position:relative;overflow:hidden;aspect-ratio:3/4;border:1px solid var(--c-line);background:var(--c-navy)}
.c-case:first-child{aspect-ratio:auto}
.c-case img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.08) brightness(.82);transition:transform 1.6s var(--c-ease),filter 1s}
.c-case:hover img{transform:scale(1.05);filter:grayscale(.3) brightness(.9)}
.c-case::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,19,.1) 30%,rgba(6,10,19,.92) 100%)}
.c-case .tx{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:30px}
.c-case small{display:flex;justify-content:space-between;font:400 11.5px/1 var(--c-sans);letter-spacing:.28em;color:var(--c-gold)}
.c-case small span:last-child{font-family:var(--c-latin);letter-spacing:.16em;color:var(--c-iv-3)}
.c-case h3{margin-top:14px;font:400 19px/1.55 var(--c-serif);letter-spacing:.08em}
.c-cases-foot{display:flex;justify-content:center;align-items:center;gap:28px;margin-top:40px;font-size:12.5px;color:var(--c-iv-3);flex-wrap:wrap}

/* ---------- 11. 流程 ---------- */
.c-tabs{display:flex;justify-content:center;gap:40px;margin-top:52px;overflow-x:auto;scrollbar-width:none;position:relative}
.c-tabs::-webkit-scrollbar{display:none}
.c-tabs button{padding:0 0 16px;border:0;background:none;cursor:pointer;font:400 13.5px/1 var(--c-sans);letter-spacing:.2em;color:var(--c-iv-3);white-space:nowrap;border-bottom:1px solid transparent;transition:color var(--c-t-ui),border-color var(--c-t-ui)}
.c-tabs button[aria-selected="true"]{color:var(--c-gold-2);border-color:var(--c-gold)}
.c-panel{margin-top:72px;text-align:left}
.c-panel[hidden]{display:none}
.c-panel-intro{max-width:46em;margin:0 auto 56px;text-align:center;font-size:14.5px;color:var(--c-iv-2)}
.c-thread{position:relative;display:grid;grid-template-columns:repeat(4,1fr)}
.c-thread::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:linear-gradient(90deg,transparent,var(--c-gold) 12%,var(--c-gold) 88%,transparent);transform-origin:left;transform:scaleX(var(--draw,1));transition:transform var(--c-t-draw) var(--c-ease)}
.js .c-thread{--draw:0}
.js .c-thread.in{--draw:1}
.c-phase{position:relative;padding:0 22px}
.c-phase::before{content:"";display:block;width:18px;height:18px;margin:0 auto;transform:rotate(45deg);border:1px solid var(--c-gold);background:var(--c-navy);box-shadow:0 0 0 6px var(--c-navy);transition:box-shadow .8s,background .8s}
.js .c-thread.in .c-phase::before{box-shadow:0 0 0 6px var(--c-navy),0 0 24px rgba(201,175,122,.45);background:#1B2C4E}
.js .c-thread .c-phase:nth-child(2)::before{transition-delay:.3s}.js .c-thread .c-phase:nth-child(3)::before{transition-delay:.6s}.js .c-thread .c-phase:nth-child(4)::before{transition-delay:.9s}
.c-phase .pn{display:block;text-align:center;margin-top:30px;font:300 italic 18px/1 var(--c-latin);color:var(--c-gold)}
.c-phase h3{text-align:center;margin-top:12px;font:400 20px/1.4 var(--c-serif);letter-spacing:.2em}
.c-phase ol{margin-top:34px}
.c-step{border-top:1px solid var(--c-line)}
.c-step summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:36px 1fr 14px;gap:0;align-items:baseline;padding:15px 0;font-size:14px;line-height:1.65;color:var(--c-iv-2);transition:color var(--c-t-ui)}
.c-step summary::-webkit-details-marker{display:none}
.c-step summary span{font:400 14px/1.6 var(--c-latin);color:var(--c-gold)}
.c-step summary::after{content:"+";font:300 16px/1 var(--c-latin);color:var(--c-gold);transition:transform var(--c-t-ui)}
.c-step[open] summary{color:var(--c-iv)}
.c-step[open] summary::after{transform:rotate(45deg)}
.c-step summary:hover{color:var(--c-iv)}
.c-step p{padding:0 0 18px 36px;font-size:13px;line-height:1.85;color:var(--c-iv-2)}
.c-list{max-width:820px;margin:0 auto;counter-reset:s}
.c-list li{counter-increment:s;display:grid;grid-template-columns:64px 1fr;padding:24px 0;border-top:1px solid var(--c-line)}
.c-list li::before{content:counter(s,decimal-leading-zero);font:300 26px/1.2 var(--c-latin);color:var(--c-gold)}
.c-list b{display:block;font:400 17px/1.5 var(--c-serif);letter-spacing:.1em;color:var(--c-iv)}
.c-list p{margin-top:6px;font-size:13.5px;color:var(--c-iv-2)}
.c-fam{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--c-gline)}
.c-fam article{padding:34px 24px 30px}
.c-fam article+article{border-left:1px solid var(--c-line)}
.c-fam h3{font:400 19px/1.4 var(--c-serif);letter-spacing:.14em}
.c-fam small{display:block;margin-top:6px;font:300 italic 15px/1.3 var(--c-latin);color:var(--c-gold)}
.c-fam ul{margin-top:20px}
.c-fam li{padding:9px 0;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-iv-2);line-height:1.7}
.c-rules{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.c-rules div{padding:24px 0;border-top:1px solid var(--c-gline)}
.c-rules b{font:400 16px/1.5 var(--c-serif);letter-spacing:.12em;color:var(--c-gold-2)}
.c-rules p{margin-top:8px;font-size:13.5px;color:var(--c-iv-2)}
.c-panel-foot{margin-top:64px;text-align:center}

/* ---------- 12. 法律（象牙章节） ---------- */
.c-seal{width:150px;height:150px;margin:56px auto 0}
.c-seal svg{width:100%;height:100%}
.c-seal .ring{transform-origin:75px 75px;animation:c-spin 90s linear infinite}
.c-arts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:80px;border-top:1px solid var(--c-pline-2)}
.c-arts article{padding:40px 28px 0;text-align:center}
.c-arts article+article{border-left:1px solid var(--c-pline)}
.c-arts .n{font:300 44px/1 var(--c-latin);color:var(--c-gold-ink)}
.c-arts h3{margin-top:22px;font:400 18px/1.5 var(--c-serif);letter-spacing:.12em}
.c-arts p{margin-top:12px;font-size:13.5px;color:var(--c-ink-2);line-height:1.9}
.c-notice{max-width:900px;margin:72px auto 0;padding:30px 36px;border:1px solid var(--c-pline-2);text-align:left;background:rgba(255,255,255,.35)}
.c-notice b{font:400 16px/1.5 var(--c-serif);letter-spacing:.12em}
.c-notice p{margin-top:10px;font-size:14px;color:var(--c-ink-2)}
.c-notice a{display:inline-block;margin-top:12px;font-size:13px;border-bottom:1px solid var(--c-pline-2)}
.c-sec--paper .c-center>.c-lk{margin-top:56px}

/* ---------- 13. 知识中心 ---------- */
.c-lib{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:clamp(40px,5vw,90px);margin-top:80px}
.c-feat{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:560px;padding:48px;border:1px solid var(--c-gline);overflow:hidden;background:radial-gradient(90% 80% at 80% 10%,rgba(36,62,110,.6),rgba(10,17,32,.95) 70%)}
.c-feat svg{position:absolute;inset:0;width:100%;height:100%;transition:transform 1.6s var(--c-ease)}
.c-feat:hover svg{transform:scale(1.04)}
.c-feat .cat{position:relative;font:400 11.5px/1 var(--c-sans);letter-spacing:.34em;color:var(--c-gold)}
.c-feat h3{position:relative;margin-top:20px;font:300 clamp(26px,2.6vw,36px)/1.5 var(--c-serif);letter-spacing:.06em}
.c-feat p{position:relative;margin-top:16px;font-size:14.5px;color:var(--c-iv-2);max-width:32em}
.c-feat .c-lk{position:relative;margin-top:32px;align-self:flex-start}
.c-rows a{display:grid;grid-template-columns:60px 1fr;padding:24px 0;border-top:1px solid var(--c-line);transition:padding var(--c-t-hover) var(--c-ease)}
.c-rows a:last-of-type{border-bottom:1px solid var(--c-line)}
.c-rows a:hover{padding-left:10px}
.c-rows .n{font:300 26px/1.2 var(--c-latin);color:var(--c-gold)}
.c-rows h4{font:400 16.5px/1.65 var(--c-serif);letter-spacing:.04em;font-weight:400}
.c-rows small{display:block;margin-top:6px;font-size:12px;letter-spacing:.2em;color:var(--c-iv-3)}
.c-more-btn{display:block;width:100%;margin-top:22px;padding:16px 0;border:1px solid var(--c-line);background:none;color:var(--c-gold-2);font:400 13px/1 var(--c-sans);letter-spacing:.24em;cursor:pointer;transition:border-color var(--c-t-ui)}
.c-more-btn:hover{border-color:var(--c-gold)}
.c-more[hidden]{display:none}
.c-clip-btn{display:none}
.c-sec--paper .c-more-btn{color:var(--c-ink);border-color:var(--c-pline-2)}
.c-lib-foot{display:flex;justify-content:center;gap:40px;margin-top:64px;flex-wrap:wrap}

/* ---------- 14. 为什么选择 · 影片 ---------- */
.c-film{position:relative;display:block;margin-top:80px;aspect-ratio:21/9;overflow:hidden;border:1px solid var(--c-gline);background:radial-gradient(60% 90% at 50% 50%,rgba(36,62,110,.7),var(--c-night) 80%)}
.c-film svg{position:absolute;inset:0;width:100%;height:100%}
.c-film .pl{position:absolute;left:50%;top:50%;width:110px;height:110px;margin:-55px 0 0 -55px;border-radius:50%;border:1px solid var(--c-gold);display:grid;place-items:center;transition:transform .6s var(--c-ease),background .6s}
.c-film .pl::before{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--c-gold);animation:c-pulse 3.2s var(--c-ease) infinite}
@keyframes c-pulse{0%{transform:scale(1);opacity:.6}100%{transform:scale(1.6);opacity:0}}
.c-film .pl::after{content:"";border-left:18px solid var(--c-gold-2);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:6px}
.c-film:hover .pl{transform:scale(1.08);background:rgba(201,175,122,.1)}
.c-film .cap{position:absolute;left:44px;bottom:38px;right:44px;display:flex;justify-content:space-between;align-items:flex-end;gap:24px}
.c-film .cap small{font:400 11.5px/1 var(--c-sans);letter-spacing:.34em;color:var(--c-gold)}
.c-film .cap b{display:block;margin-top:12px;font:300 30px/1.3 var(--c-serif);letter-spacing:.12em}
.c-film .cap p{max-width:26em;font-size:14px;color:var(--c-iv-2);text-align:right}
.c-vows{display:grid;grid-template-columns:repeat(4,1fr);margin-top:72px}
.c-vows article{padding:0 28px}
.c-vows article:first-child{padding-left:0}
.c-vows article+article{border-left:1px solid var(--c-line)}
.c-vows .n{font:300 italic 22px/1 var(--c-latin);color:var(--c-gold)}
.c-vows h3{margin-top:18px;font:400 17.5px/1.5 var(--c-serif);letter-spacing:.1em}
.c-vows p{margin-top:10px;font-size:13.5px;color:var(--c-iv-2)}

/* ---------- 15. 标准 · FAQ ---------- */
.c-std{display:grid;grid-template-columns:repeat(4,1fr);margin-top:72px;border-top:1px solid var(--c-gline);border-bottom:1px solid var(--c-gline)}
.c-std div{padding:40px 28px}
.c-std div+div{border-left:1px solid var(--c-line)}
.c-std h3{font:400 17px/1.5 var(--c-serif);letter-spacing:.12em;color:var(--c-gold-2)}
.c-std p{margin-top:12px;font-size:13.5px;color:var(--c-iv-2)}
.c-tos{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:30px 0;border-bottom:1px solid var(--c-line)}
.c-tos b{font:500 12px/1 var(--c-latin);letter-spacing:.42em;color:var(--c-gold)}
.c-tos span{margin-left:28px;font:400 17px/1.5 var(--c-serif);letter-spacing:.08em}
.c-faq{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:clamp(40px,7vw,120px);margin-top:clamp(110px,11vw,170px)}
.c-qa{border-top:1px solid var(--c-line)}
.c-qa:last-of-type{border-bottom:1px solid var(--c-line)}
.c-qa summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:130px 1fr 34px;align-items:center;gap:16px;padding:30px 0}
.c-qa summary::-webkit-details-marker{display:none}
.c-qa summary small{font:400 12px/1 var(--c-sans);letter-spacing:.24em;color:var(--c-gold)}
.c-qa summary b{font:400 19px/1.5 var(--c-serif);letter-spacing:.06em}
.c-qa summary::after{content:"";justify-self:end;width:30px;height:30px;border:1px solid var(--c-gline);border-radius:50%;background:linear-gradient(var(--c-gold-2),var(--c-gold-2)) center/10px 1px no-repeat,linear-gradient(var(--c-gold-2),var(--c-gold-2)) center/1px 10px no-repeat;transition:transform .4s}
.c-qa[open] summary::after{transform:rotate(45deg)}
.c-qa .ans{padding:0 0 32px 146px;font-size:14.5px;color:var(--c-iv-2)}
.c-qa .ans p+p{margin-top:8px}
.c-qa .ans a{display:inline-block;margin:14px 22px 0 0;color:var(--c-gold-2);border-bottom:1px solid var(--c-gline);font-size:13.5px;letter-spacing:.06em}

/* ---------- 16. 目录（象牙） ---------- */
.c-index{display:grid;grid-template-columns:repeat(3,1fr);gap:0 56px;margin-top:72px;text-align:left}
.c-index h3{font:400 18px/1.5 var(--c-serif);letter-spacing:.12em;padding-bottom:18px;border-bottom:1px solid var(--c-ink)}
.c-index p{margin-top:14px;font-size:13.5px;color:var(--c-ink-2);min-height:4.4em}
.c-index ul{margin-top:10px}
.c-index li a{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--c-pline);font-size:14.5px;color:var(--c-ink-2);transition:color var(--c-t-ui),padding var(--c-t-ui)}
.c-index li a::after{content:"→";font-family:var(--c-latin);opacity:0;transition:opacity var(--c-t-ui)}
.c-index li a:hover{color:var(--c-ink);padding-left:6px}
.c-index li a:hover::after{opacity:1}

/* ---------- 17. 联系 ---------- */
.c-contact{background:radial-gradient(60% 70% at 50% 30%,rgba(36,62,110,.5),transparent 70%),var(--c-night)}
.c-contact h2{margin-top:40px;font:300 clamp(48px,7vw,110px)/1.1 var(--c-serif);letter-spacing:.16em;padding-left:.16em}
.c-cgrid{display:grid;grid-template-columns:1fr auto 1fr;gap:clamp(32px,5vw,80px);align-items:center;margin-top:90px}
.c-ch div{padding:22px 0;border-top:1px solid var(--c-line)}
.c-ch div:last-child{border-bottom:1px solid var(--c-line)}
.c-ch b{display:block;font:400 16px/1.5 var(--c-serif);letter-spacing:.14em;color:var(--c-gold-2)}
.c-ch span,.c-ch a{display:block;margin-top:6px;font-size:13px;color:var(--c-iv-3)}
.c-ch a:hover{color:var(--c-gold-2)}
.c-ch--r{text-align:right}
.c-ch--l{text-align:left}
.c-qr{width:300px;padding:26px;border:1px solid var(--c-gline);background:rgba(238,231,216,.03)}
.c-qr [role=tablist]{display:flex;justify-content:center;gap:22px;margin-bottom:20px}
.c-qr button{padding:0 0 12px;border:0;border-bottom:1px solid transparent;background:none;cursor:pointer;font:400 12.5px/1 var(--c-sans);letter-spacing:.18em;color:var(--c-iv-3);white-space:nowrap}
.c-qr button[aria-selected="true"]{color:var(--c-gold-2);border-color:var(--c-gold)}
.c-qr img{width:100%;aspect-ratio:1;object-fit:contain;background:#fff;padding:12px}
.c-qr img[hidden]{display:none}
.c-qr p{margin-top:14px;text-align:center;font-size:12px;color:var(--c-iv-3);letter-spacing:.12em}
.c-mbtns{display:none}
.c-follow{display:flex;justify-content:center;flex-wrap:wrap;gap:12px 36px;margin-top:80px;padding-top:36px;border-top:1px solid var(--c-line);font-size:13px;letter-spacing:.16em;color:var(--c-iv-2)}
.c-follow b{color:var(--c-gold);font-weight:400;letter-spacing:.3em}
.c-follow a:hover{color:var(--c-gold-2)}

/* ---------- 18. 页脚 ---------- */
.c-ftr{padding:110px 0 44px;border-top:1px solid var(--c-line);background:var(--c-night)}
.c-ftr-top{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:40px}
.c-ftr-brand img{width:64px;height:64px}
.c-ftr-brand b{display:block;margin-top:20px;font:400 12px/1.6 var(--c-latin);letter-spacing:.4em;color:var(--c-gold-2);text-transform:uppercase}
.c-ftr-brand p{margin-top:14px;font-size:13.5px;color:var(--c-iv-3);max-width:20em}
.c-ftr h4{font:400 11.5px/1 var(--c-sans);letter-spacing:.32em;color:var(--c-gold);margin-bottom:20px;font-weight:400}
.c-ftr li a{display:block;padding:5px 0;font-size:13.5px;color:var(--c-iv-2);transition:color var(--c-t-ui)}
.c-ftr li a:hover{color:var(--c-gold-2)}
.c-ftr-cities{margin-top:90px;text-align:center;font:300 clamp(26px,4vw,52px)/1 var(--c-latin);letter-spacing:.2em;color:rgba(238,231,216,.16)}
.c-ftr-ents{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 36px;margin-top:26px;font-size:12px;color:var(--c-iv-3);letter-spacing:.06em}
.c-ftr-ll{display:flex;justify-content:space-between;gap:20px;margin-top:48px;padding-top:26px;border-top:1px solid var(--c-line);font-size:12px;color:var(--c-iv-3);letter-spacing:.06em;flex-wrap:wrap}

/* ---------- 19. 手机底部咨询栏（下滑隐藏、上滑出现） ---------- */
.c-mbar{display:none}

/* ---------- 20. 阅读页 ---------- */
.c-progress{position:fixed;left:0;top:0;z-index:60;height:2px;width:100%;background:var(--c-gold);transform-origin:left;transform:scaleX(0)}
.c-art-hero{position:relative;padding:calc(var(--c-hdr) + 64px) 0 72px;background:radial-gradient(70% 120% at 85% 0%,rgba(36,62,110,.55),transparent 60%),var(--c-night);overflow:hidden}
.c-art-hero::after{content:"";position:absolute;right:-180px;top:-200px;width:620px;height:620px;border-radius:50%;border:1px solid rgba(201,175,122,.16);box-shadow:0 0 0 80px rgba(201,175,122,.02),0 0 0 81px rgba(201,175,122,.08);pointer-events:none}
.c-art-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:clamp(32px,5vw,80px);align-items:end}
.c-art-grid--solo{grid-template-columns:minmax(0,1fr);max-width:960px}
.c-crumbs{display:flex;gap:10px;flex-wrap:wrap;font-size:12.5px;letter-spacing:.12em;color:var(--c-iv-3)}
.c-crumbs a:hover{color:var(--c-gold-2)}
.c-crumbs span{color:var(--c-gold)}
.c-art-kick{margin-top:34px;font:400 12px/1.4 var(--c-latin);letter-spacing:.4em;color:var(--c-gold);text-transform:uppercase}
.c-art-h1{margin-top:18px;font:300 clamp(30px,3.6vw,52px)/1.38 var(--c-serif);letter-spacing:.06em;color:var(--c-iv)}
.c-dek{margin-top:24px;font:300 17px/1.9 var(--c-serif);color:var(--c-iv-2);max-width:36em}
.c-byline{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:30px;padding-top:22px;border-top:1px solid var(--c-line);font-size:12.5px;letter-spacing:.06em;color:var(--c-iv-3)}
.c-byline b{color:var(--c-iv-2);font-weight:400}
.c-cover{border:1px solid var(--c-gline);background:var(--c-navy)}
.c-cover img{width:100%}
.c-read{background:var(--c-paper);color:var(--c-ink)}
.c-read-grid{display:grid;grid-template-columns:240px minmax(0,var(--c-read)) 1fr;gap:clamp(32px,5vw,80px);padding-top:80px;padding-bottom:120px}
.c-toc{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 120px);overflow:auto;scrollbar-width:thin}
.c-toc b{display:block;font:400 11.5px/1 var(--c-sans);letter-spacing:.32em;color:var(--c-gold-ink);margin-bottom:18px}
.c-toc a{position:relative;display:block;padding:9px 0 9px 16px;font-size:13.5px;line-height:1.6;color:var(--c-ink-3);border-left:1px solid var(--c-pline);transition:color var(--c-t-ui)}
.c-toc a::before{content:"";position:absolute;left:-1px;top:0;bottom:0;width:1px;background:var(--c-gold-ink);transform:scaleY(0);transition:transform .35s var(--c-ease)}
.c-toc a:hover{color:var(--c-ink)}
.c-toc a.is-on{color:var(--c-ink)}
.c-toc a.is-on::before{transform:none}
.c-toc-m{display:none}
.c-prose{font:400 17.5px/1.95 var(--c-sans);color:var(--c-ink);letter-spacing:.01em}
.c-prose>*+*{margin-top:1.1em}
.c-prose h2{margin-top:2.6em;padding-top:1.4em;border-top:1px solid var(--c-pline-2);font:400 27px/1.45 var(--c-serif);letter-spacing:.06em;scroll-margin-top:100px}
.c-prose h2 .no{display:block;margin-bottom:10px;font:300 italic 18px/1 var(--c-latin);color:var(--c-gold-ink);letter-spacing:.04em}
.c-prose h3{margin-top:2em;font:500 19px/1.6 var(--c-serif);letter-spacing:.04em;scroll-margin-top:100px}
.c-prose p{color:var(--c-ink-2)}
.c-prose strong{color:var(--c-ink);font-weight:600}
.c-prose a{color:var(--c-ink);border-bottom:1px solid var(--c-gold-ink)}
.c-prose ul li{position:relative;padding-left:22px;color:var(--c-ink-2)}
.c-prose ul li+li{margin-top:.55em}
.c-prose ul li::before{content:"";position:absolute;left:2px;top:.85em;width:8px;height:1px;background:var(--c-gold-ink)}
.c-prose ul li b{color:var(--c-ink);font-weight:600}
.c-key{padding:32px 34px;background:var(--c-paper-2);border-top:2px solid var(--c-gold-ink)}
.c-key>b{display:block;font:400 11.5px/1 var(--c-sans);letter-spacing:.32em;color:var(--c-gold-ink);margin-bottom:14px}
.c-key p{font:400 17px/1.95 var(--c-serif);color:var(--c-ink)}
.c-key p+p{margin-top:12px}
.c-tbl{margin-left:calc(-1 * min(80px, 6vw));margin-right:calc(-1 * min(80px, 6vw));overflow-x:auto;-webkit-overflow-scrolling:touch;background:linear-gradient(90deg,var(--c-paper) 30%,transparent),linear-gradient(-90deg,var(--c-paper) 30%,transparent) 100% 0,radial-gradient(farthest-side at 0 50%,rgba(0,0,0,.12),transparent),radial-gradient(farthest-side at 100% 50%,rgba(0,0,0,.12),transparent) 100% 0;background-repeat:no-repeat;background-size:40px 100%,40px 100%,14px 100%,14px 100%;background-attachment:local,local,scroll,scroll}
.c-tbl table{width:100%;min-width:640px;border-collapse:collapse;font-size:14px;line-height:1.75}
.c-tbl caption{caption-side:top;text-align:left;padding:0 0 12px;font:400 12px/1 var(--c-sans);letter-spacing:.28em;color:var(--c-gold-ink)}
.c-tbl th{padding:14px 16px;text-align:left;font:500 13px/1.5 var(--c-sans);letter-spacing:.06em;color:var(--c-iv);background:var(--c-navy)}
.c-tbl td{padding:16px;border-bottom:1px solid var(--c-pline);vertical-align:top;color:var(--c-ink-2)}
.c-tbl td:first-child{color:var(--c-ink);font-weight:600;white-space:nowrap}
.c-tbl tr:hover td{background:rgba(255,255,255,.45)}
.c-small{font-size:13.5px!important;color:var(--c-ink-3)!important}
.c-rq{margin-top:56px}
.c-rq .c-qa{border-color:var(--c-pline-2)}
.c-rq .c-qa summary{grid-template-columns:1fr 34px;padding:24px 0}
.c-rq .c-qa summary b{font-size:17.5px}
.c-rq .c-qa summary::after{border-color:var(--c-pline-2);background:linear-gradient(var(--c-ink),var(--c-ink)) center/10px 1px no-repeat,linear-gradient(var(--c-ink),var(--c-ink)) center/1px 10px no-repeat}
.c-rq .c-qa .ans{padding:0 0 26px;color:var(--c-ink-2);font-size:16px}
.c-src{margin-top:64px;border-top:1px solid var(--c-pline-2);border-bottom:1px solid var(--c-pline-2)}
.c-src summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:22px 0;font:400 16px/1.5 var(--c-serif);letter-spacing:.08em}
.c-src summary::-webkit-details-marker{display:none}
.c-src summary small{font:400 12px/1 var(--c-sans);letter-spacing:.16em;color:var(--c-ink-3)}
.c-src ol{counter-reset:r;padding-bottom:26px}
.c-src li{counter-increment:r;display:grid;grid-template-columns:36px 1fr;padding:8px 0;font-size:14px;color:var(--c-ink-2)}
.c-src li::before{content:counter(r,decimal-leading-zero);font:400 14px/1.6 var(--c-latin);color:var(--c-gold-ink)}
.c-next{margin-top:72px;padding:48px;background:var(--c-night);color:var(--c-iv);position:relative;overflow:hidden}
.c-next::after{content:"";position:absolute;right:-90px;bottom:-110px;width:300px;height:300px;border-radius:50%;border:1px solid rgba(201,175,122,.22)}
.c-next small{font:400 11.5px/1 var(--c-sans);letter-spacing:.34em;color:var(--c-gold)}
.c-next b{display:block;margin-top:16px;font:300 26px/1.45 var(--c-serif);letter-spacing:.08em}
.c-next p{margin-top:12px;font-size:14.5px;color:var(--c-iv-2);max-width:30em}
.c-next .c-acts{justify-content:flex-start;gap:28px;margin-top:30px}
.c-rel{background:var(--c-paper-2);color:var(--c-ink);padding:110px 0}
.c-rel .c-kicker{color:var(--c-gold-ink)}
.c-rel .c-kicker::before,.c-rel .c-kicker::after{background:var(--c-pline-2)}
.c-rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:56px}
.c-rel-grid a{display:block;padding-top:24px;border-top:1px solid var(--c-ink);transition:transform var(--c-t-hover) var(--c-ease)}
.c-rel-grid a:hover{transform:translateY(-4px)}
.c-rel-grid small{font:400 11.5px/1 var(--c-sans);letter-spacing:.28em;color:var(--c-gold-ink)}
.c-rel-grid h3{margin-top:14px;font:400 19px/1.6 var(--c-serif);letter-spacing:.04em}
.c-rel-grid p{margin-top:10px;font-size:13.5px;color:var(--c-ink-2)}
.c-rel-grid .im{margin:-24px 0 22px;aspect-ratio:4/3;overflow:hidden;background:var(--c-paper)}
.c-rel-grid .im img{width:100%;height:100%;object-fit:cover;filter:grayscale(.4);transition:transform 1.2s var(--c-ease),filter .8s}
.c-rel-grid a:hover .im img{transform:scale(1.04);filter:none}
.c-rel-grid a.has-im{border-top:0;padding-top:24px}
.c-totop{position:fixed;right:24px;bottom:28px;z-index:40;width:48px;height:48px;border-radius:50%;border:1px solid var(--c-gline);background:rgba(6,10,19,.86);color:var(--c-gold-2);display:grid;place-items:center;font:300 18px/1 var(--c-latin);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .4s,visibility .4s,transform .4s;cursor:pointer}
.c-totop.is-on{opacity:1;visibility:visible;transform:none}

/* ---------- 21. 案例详情 ---------- */
.c-case-hero{position:relative;min-height:min(86vh,820px);display:flex;align-items:flex-end;overflow:hidden;background:var(--c-night)}
.c-case-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:grayscale(.35) brightness(.62) contrast(1.05);transform:scale(1.06);animation:c-kb 22s var(--c-ease) forwards}
@keyframes c-kb{from{transform:scale(1.06)}to{transform:scale(1)}}
.c-case-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,19,.55) 0%,rgba(6,10,19,0) 30%,rgba(6,10,19,.2) 55%,rgba(6,10,19,.95) 100%)}
.c-case-hero .c-wrap{position:relative;z-index:1;width:100%;padding-bottom:64px}
.c-stage{background:var(--c-night-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.c-stage ol{display:grid;grid-template-columns:repeat(8,1fr);position:relative}
.c-stage li{position:relative;padding:22px 8px 20px;text-align:center;font-size:12px;letter-spacing:.12em;color:var(--c-iv-3)}
.c-stage li::before{content:"";display:block;width:9px;height:9px;margin:0 auto 12px;transform:rotate(45deg);border:1px solid var(--c-gline);background:var(--c-night-2)}
.c-stage li::after{content:"";position:absolute;top:26px;left:calc(50% + 10px);right:calc(-50% + 10px);height:1px;background:var(--c-line)}
.c-stage li:last-child::after{display:none}
.c-stage li.is-done{color:var(--c-iv-2)}
.c-stage li.is-done::before{border-color:var(--c-gold);background:var(--c-gold)}
.c-stage li.is-now{color:var(--c-gold-2)}
.c-stage li.is-now::before{border-color:var(--c-gold);background:var(--c-gold);box-shadow:0 0 0 5px rgba(201,175,122,.18);animation:c-glow 2.4s ease-in-out infinite}
@keyframes c-glow{50%{box-shadow:0 0 0 9px rgba(201,175,122,.06)}}
.c-case-body{background:var(--c-paper);color:var(--c-ink);padding:96px 0 120px}
.c-case-grid{display:grid;grid-template-columns:minmax(0,var(--c-read)) 1fr;gap:clamp(40px,6vw,110px)}
.c-facts{border-top:1px solid var(--c-ink);align-self:start;position:sticky;top:96px}
.c-facts div{display:grid;grid-template-columns:92px 1fr;padding:14px 0;border-bottom:1px solid var(--c-pline);font-size:13.5px}
.c-facts dt{color:var(--c-ink-3);letter-spacing:.12em}
.c-facts dd{color:var(--c-ink)}
.c-gallery{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;margin-top:64px}
.c-gallery figure{grid-column:span 6;position:relative;overflow:hidden;background:var(--c-paper-2);cursor:zoom-in}
.c-gallery figure:first-child:nth-last-child(odd){grid-column:span 12}
.c-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1.2s var(--c-ease)}
.c-gallery figure:first-child:nth-last-child(odd) img{aspect-ratio:16/9}
.c-gallery figure:hover img{transform:scale(1.03)}
.c-gallery figcaption{padding:12px 2px 0;font-size:13px;color:var(--c-ink-3);background:var(--c-paper)}
.c-pn{display:grid;grid-template-columns:1fr 1fr;margin-top:80px;border-top:1px solid var(--c-pline-2);border-bottom:1px solid var(--c-pline-2)}
.c-pn a{padding:28px 0}
.c-pn a+a{text-align:right;border-left:1px solid var(--c-pline);padding-left:24px}
.c-pn small{font:400 11.5px/1 var(--c-sans);letter-spacing:.28em;color:var(--c-gold-ink)}
.c-pn b{display:block;margin-top:10px;font:400 17px/1.6 var(--c-serif);letter-spacing:.04em}
.c-lightbox{position:fixed;inset:0;z-index:120;background:rgba(6,10,19,.94);display:grid;place-items:center;padding:40px;opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s;cursor:zoom-out}
.c-lightbox.is-open{opacity:1;visibility:visible}
.c-lightbox img{max-width:min(1200px,92vw);max-height:84vh;object-fit:contain;transform:scale(.97);transition:transform .45s var(--c-ease)}
.c-lightbox.is-open img{transform:none}
.c-lightbox p{position:absolute;left:0;right:0;bottom:28px;text-align:center;font-size:13px;color:var(--c-iv-2)}

/* ---------- 22. Reveal ---------- */
.c-motion-ready .rv{opacity:0;transform:translateY(24px);transition:opacity var(--c-t-reveal) var(--c-ease),transform var(--c-t-reveal) var(--c-ease)}
.c-motion-ready .rv.in{opacity:1;transform:none}

/* ---------- 23. Responsive ---------- */
@media (max-width:1080px){
  :root{--c-hdr:72px}
  .c-nav{display:none}
  .c-burger{display:block;grid-column:3}
  .c-crest{grid-column:2}
  .c-crest span{display:none}
  .c-stats{grid-template-columns:repeat(3,1fr)}
  .c-stats div:nth-child(4){border-left:0}
  .c-stats div:nth-child(n+4){border-top:1px solid var(--c-line)}
  .c-svc{grid-template-columns:1fr 1fr}
  .c-svc a:not(:nth-child(3n+1)){border-left:0}
  .c-svc a:nth-child(even){border-left:1px solid var(--c-gline)}
  .c-thread{grid-template-columns:1fr 1fr;row-gap:64px}
  .c-thread::before{display:none}
  .c-fam{grid-template-columns:1fr 1fr}
  .c-fam article:nth-child(3){border-left:0}
  .c-arts,.c-std{grid-template-columns:1fr 1fr}
  .c-arts article:nth-child(3),.c-std div:nth-child(3){border-left:0}
  .c-vows{grid-template-columns:1fr 1fr;row-gap:44px}
  .c-vows article:nth-child(3){border-left:0;padding-left:0}
  .c-lib,.c-split,.c-faq{grid-template-columns:1fr}
  .c-cgrid{grid-template-columns:1fr;justify-items:center}
  .c-ch,.c-ch--r,.c-ch--l{width:100%;max-width:420px;text-align:center}
  .c-ftr-top{grid-template-columns:1fr 1fr 1fr}
  .c-ftr-brand{grid-column:1/-1}
  .c-art-grid{grid-template-columns:1fr}
  .c-cover{max-width:640px}
  .c-read-grid{grid-template-columns:minmax(0,var(--c-read));justify-content:center}
  .c-toc{display:none}
  .c-toc-m{display:block;position:sticky;top:var(--c-hdr);z-index:30;margin:0 calc(-1*var(--c-gut));padding:0 var(--c-gut);background:rgba(244,239,230,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-pline)}
  .c-toc-m summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;height:48px;font-size:13.5px;letter-spacing:.14em;color:var(--c-ink)}
  .c-toc-m summary::-webkit-details-marker{display:none}
  .c-toc-m summary::after{content:"+";font:300 20px/1 var(--c-latin);color:var(--c-gold-ink);transition:transform var(--c-t-ui)}
  .c-toc-m[open] summary::after{transform:rotate(45deg)}
  .c-toc-m nav{max-height:52vh;overflow:auto;padding-bottom:12px}
  .c-toc-m a{display:block;padding:10px 0;border-top:1px solid var(--c-pline);font-size:14px;color:var(--c-ink-2)}
  .c-tbl{margin-left:0;margin-right:0}
  .c-case-grid{grid-template-columns:1fr}
  .c-facts{position:static}
  .c-stage ol{grid-template-columns:repeat(8,minmax(92px,1fr));overflow-x:auto}
  .c-stage{overflow-x:auto}
}
@media (max-width:720px){
  .c{font-size:15px}
  :root{--c-hdr:64px}
  .c-hero{min-height:auto;padding-top:120px}
  .c-hero-kick{font-size:10.5px;letter-spacing:.3em}
  .c-h1{font-size:clamp(34px,10vw,46px);letter-spacing:.08em;margin-top:34px}
  .c-motto{font-size:14px;letter-spacing:.34em;gap:14px}
  .c-motto::before,.c-motto::after{width:28px}
  .c-en{font-size:17px}
  .c-acts{gap:26px;margin-top:40px}
  .c-acts .c-btn{width:100%;height:56px}
  .c-kicker{letter-spacing:.26em;gap:12px;font-size:11px}
  .c-kicker::before,.c-kicker::after{width:22px}
  .c-lk{letter-spacing:.12em;gap:10px}
  .c-stats{grid-template-columns:1fr 1fr}
  .c-stats div{border-left:0!important;border-top:1px solid var(--c-line)}
  .c-stats div:nth-child(even){border-left:1px solid var(--c-line)!important}
  .c-stats div:last-child{grid-column:1/-1}
  .c-gates{grid-template-columns:1fr}
  .c-gate+.c-gate{border-left:0;border-top:1px solid var(--c-line);padding-left:0}
  .c-gate{padding-right:0}
  .c-cities{grid-template-columns:1fr;gap:48px}
  .c-cities div+div{border-left:0}
  .c-svc{grid-template-columns:1fr}
  .c-svc a,.c-svc a:nth-child(even){border-left:0;min-height:0;padding:36px 4px}
  .c-svc .n{font-size:48px}
  .c-svc h3{padding-top:22px}
  .c-eco{grid-template-columns:1fr}
  .c-eco a{padding:34px 28px;min-height:250px}
  .c-cases{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;margin:56px calc(-1*var(--c-gut)) 0;padding:0 var(--c-gut);scrollbar-width:none}
  .c-cases::-webkit-scrollbar{display:none}
  .c-case,.c-case:first-child{flex:0 0 82%;aspect-ratio:4/5;scroll-snap-align:center}
  .c-tabs{justify-content:flex-start;gap:28px}
  .c-panel{margin-top:48px}
  .c-thread,.c-fam,.c-rules{grid-template-columns:1fr;row-gap:44px}
  .c-phase{padding:0}
  .c-fam article,.c-fam article+article{border-left:0;padding:28px 0}
  .c-list li{grid-template-columns:48px 1fr}
  .c-arts,.c-std,.c-vows{grid-template-columns:1fr}
  .c-arts article,.c-arts article+article{border-left:0;padding:34px 0 0}
  .c-notice{padding:24px}
  .c-std div,.c-std div+div{border-left:0;padding:28px 0;border-top:1px solid var(--c-line)}
  .c-std div:first-child{border-top:0}
  .c-vows article,.c-vows article+article{border-left:0;padding:0}
  .c-feat{min-height:440px;padding:30px}
  .c-film{aspect-ratio:4/4.6}
  .c-film .cap{flex-direction:column;align-items:flex-start;left:24px;right:24px;bottom:26px}
  .c-film .cap p{text-align:left}
  .c-film .pl{top:40%}
  .c-tos{flex-direction:column;align-items:flex-start}
  .c-tos span{display:block;margin:12px 0 0}
  .c-qa summary{grid-template-columns:1fr 30px;gap:10px 12px}
  .c-qa summary small{grid-column:1}
  .c-qa summary b{grid-column:1;font-size:17px}
  .c-qa summary::after{grid-row:1/3;grid-column:2}
  .c-qa .ans{padding-left:0}
  .c-index{grid-template-columns:1fr;gap:48px}
  .c-index p{min-height:0}
  .c-js-clip li:nth-child(n+5){display:none}
  .c-js-clip.is-open li{display:block}
  .c-clip-btn{display:block}
  .c-contact h2{font-size:clamp(44px,13vw,64px)}
  .c-qr{display:none}
  .c-mbtns{display:grid;gap:10px;width:100%;max-width:420px}
  .c-mbtns a,.c-mbtns button{display:flex;justify-content:space-between;align-items:center;height:56px;padding:0 20px;border:1px solid var(--c-gline);background:none;font:400 14px/1 var(--c-sans);letter-spacing:.16em;color:var(--c-gold-2);cursor:pointer}
  .c-ftr{padding-bottom:110px}
  .c-ftr-top{grid-template-columns:1fr 1fr}
  .c-mbar{display:grid;grid-template-columns:1fr 1.3fr;position:fixed;left:12px;right:12px;bottom:12px;z-index:60;height:54px;border:1px solid var(--c-gline);background:rgba(6,10,19,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);font-size:14px;letter-spacing:.2em;transition:transform .45s var(--c-ease)}
  .c-mbar.is-hidden{transform:translateY(calc(100% + 16px))}
  .c-mbar a{display:grid;place-items:center;color:var(--c-iv-2)}
  .c-mbar a+a{background:var(--c-gold);color:var(--c-night)}
  .c-art-hero{padding:calc(var(--c-hdr) + 36px) 0 48px}
  .c-art-h1{font-size:clamp(26px,7.4vw,34px)}
  .c-dek{font-size:16px}
  .c-prose{font-size:17px}
  .c-prose h2{font-size:23px}
  .c-tbl--stack{background:none;overflow:visible}
  .c-tbl--stack table{min-width:0}
  .c-tbl--stack thead{display:none}
  .c-tbl--stack tr{display:block;margin-top:14px;border-top:2px solid var(--c-navy);background:var(--c-paper-2)}
  .c-tbl--stack td{display:grid;grid-template-columns:84px 1fr;gap:12px;padding:12px 14px;white-space:normal!important}
  .c-tbl--stack td::before{content:attr(data-label);font-size:12px;letter-spacing:.08em;color:var(--c-ink-3);font-weight:400}
  .c-tbl--stack td:first-child{display:block;font:500 16px/1.4 var(--c-serif);background:var(--c-navy);color:var(--c-iv)}
  .c-tbl--stack td:first-child::before{display:none}
  .c-key{padding:24px 22px}
  .c-next{padding:32px 24px}
  .c-rel-grid{grid-template-columns:1fr}
  .c-totop{bottom:80px;right:16px}
  .c-case-hero{min-height:72vh}
  .c-gallery{grid-template-columns:1fr;gap:20px}
  .c-gallery figure,.c-gallery figure:first-child{grid-column:auto}
  .c-pn{grid-template-columns:1fr}
  .c-pn a+a{border-left:0;border-top:1px solid var(--c-pline);text-align:left;padding-left:0}
}
@media (prefers-reduced-motion:reduce){
  .c *,.c *::before,.c *::after{animation:none!important;transition:none!important}
  .c-motion-ready .rv{opacity:1;transform:none}
  .js .c-thread{--draw:1}
}

/* =====================================================================
   24. FS FLOW 系统介绍章（首页第 II 章；/trust/ 介绍层可复用 .c-film-frame）
   ===================================================================== */
.c-flow{overflow:hidden;padding-top:clamp(72px,8vw,120px);background:linear-gradient(180deg,var(--c-night) 0,rgba(6,10,19,0) 260px),radial-gradient(55% 40% at 50% 44%,rgba(201,175,122,.12),transparent 70%),radial-gradient(85% 45% at 50% 24%,rgba(36,62,110,.5),transparent 72%),var(--c-night)}
.c-sec--before-flow{padding-bottom:clamp(56px,6vw,96px)}
.c-flow::before,.c-flow::after{content:"";position:absolute;left:0;right:0;top:-260px;bottom:-260px;pointer-events:none;opacity:.55;
  background-image:radial-gradient(1px 1px at 24px 36px,rgba(238,231,216,.75),transparent 60%),radial-gradient(1px 1px at 150px 120px,rgba(231,211,165,.7),transparent 60%),radial-gradient(1.5px 1.5px at 210px 40px,rgba(238,231,216,.5),transparent 60%),radial-gradient(1px 1px at 90px 200px,rgba(238,231,216,.6),transparent 60%);
  background-size:260px 260px;animation:c-drift 140s linear infinite}
.c-flow::after{opacity:.3;background-size:410px 410px;animation-duration:220s}
@keyframes c-drift{to{transform:translateY(-260px)}}
.c-flow>.c-wrap{position:relative;z-index:1}
.c-flow-mark{margin-top:38px;font:300 clamp(64px,15vw,232px)/.9 var(--c-latin);letter-spacing:.06em;padding-left:.06em;white-space:nowrap;color:transparent;-webkit-text-stroke:1px rgba(201,175,122,.42);
  background:linear-gradient(100deg,transparent 42%,rgba(231,211,165,.85) 50%,transparent 58%) 100% 0/300% 100% no-repeat;-webkit-background-clip:text;background-clip:text;transition:background-position 2.6s var(--c-ease) .3s,opacity var(--c-t-reveal) var(--c-ease),transform var(--c-t-reveal) var(--c-ease)}
.c-flow-mark.in{background-position:0 0}
.c-flow .c-h2{margin-top:6px}
.c-film-frame{position:relative;max-width:1120px;margin:72px auto 0}
.c-film-stage{position:relative;aspect-ratio:16/9;overflow:hidden;background:#000;border:1px solid var(--c-gline);box-shadow:0 70px 140px -70px rgba(201,175,122,.4),0 30px 80px -30px rgba(0,0,0,.8)}
.c-film-video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000;opacity:0;transition:opacity .6s}
.c-film-cover{position:absolute;inset:0;display:block;cursor:pointer;transition:opacity .6s,visibility .6s}
.c-film-cover img{width:100%;height:100%;object-fit:cover;transform:scale(1.05);transition:transform 2.4s var(--c-ease),filter .6s;filter:brightness(.82)}
.c-film-frame.in .c-film-cover img{transform:none}
.c-film-cover:hover img{filter:brightness(.95)}
.c-film-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,19,.55) 0%,transparent 24%,transparent 70%,rgba(6,10,19,.8) 100%)}
.c-film-top{position:absolute;left:24px;right:24px;top:18px;z-index:1;display:flex;justify-content:space-between;font:400 12px/1 var(--c-latin);letter-spacing:.32em;color:var(--c-gold-2)}
.c-play{position:absolute;left:32px;bottom:28px;z-index:1;width:76px;height:76px;border-radius:50%;border:1px solid var(--c-gold);background:rgba(6,10,19,.35);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;transition:transform .6s var(--c-ease),background .6s}
.c-play::before{content:"";position:absolute;inset:-1px;border-radius:50%;border:1px solid var(--c-gold);animation:c-pulse 3.2s var(--c-ease) infinite}
.c-play::after{content:"";border-left:16px solid var(--c-gold-2);border-top:10px solid transparent;border-bottom:10px solid transparent;margin-left:6px}
.c-film-cover:hover .c-play{transform:scale(1.08);background:rgba(201,175,122,.16)}
.c-film-cta{position:absolute;left:128px;bottom:58px;z-index:1;font:400 13px/1 var(--c-sans);letter-spacing:.32em;color:var(--c-iv)}
.c-film-cta small{display:block;margin-top:10px;font:400 12px/1 var(--c-latin);letter-spacing:.24em;color:var(--c-gold-2)}
.c-flow.is-playing .c-film-video{opacity:1}
.c-flow.is-playing .c-film-cover{opacity:0;visibility:hidden}
.c-corner{position:absolute;z-index:2;width:30px;height:30px;pointer-events:none}
.c-corner::before,.c-corner::after{content:"";position:absolute;background:var(--c-gold);transition:transform 1.1s var(--c-ease) .4s}
.c-corner::before{width:30px;height:1px}.c-corner::after{width:1px;height:30px}
.c-corner.tl{left:-14px;top:-14px}.c-corner.tr{right:-14px;top:-14px}.c-corner.bl{left:-14px;bottom:-14px}.c-corner.br{right:-14px;bottom:-14px}
.c-corner.tl::before,.c-corner.tl::after{left:0;top:0;transform-origin:0 0}
.c-corner.tr::before{right:0;top:0;transform-origin:100% 0}.c-corner.tr::after{right:0;top:0;transform-origin:0 0}
.c-corner.bl::before{left:0;bottom:0;transform-origin:0 0}.c-corner.bl::after{left:0;bottom:0;transform-origin:0 100%}
.c-corner.br::before{right:0;bottom:0;transform-origin:100% 0}.c-corner.br::after{right:0;bottom:0;transform-origin:0 100%}
.js .c-film-frame .c-corner::before{transform:scaleX(0)}.js .c-film-frame .c-corner::after{transform:scaleY(0)}
.js .c-film-frame.in .c-corner::before{transform:none}.js .c-film-frame.in .c-corner::after{transform:none}
.c-film-note{margin-top:22px;font-size:12px;letter-spacing:.14em;color:var(--c-iv-3)}
.c-chap-rail{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;max-width:1120px;margin:48px auto 0;text-align:left}
.c-chap{--p:0;position:relative;display:block;width:100%;padding:0 0 10px;border:0;border-top:1px solid var(--c-line);background:none;text-align:left;cursor:pointer;color:inherit}
.c-chap::before{content:"";position:absolute;left:0;top:-1px;height:1px;width:calc(var(--p) * 100%);background:var(--c-gold)}
.c-chap img{width:100%;aspect-ratio:16/9;object-fit:cover;margin-top:16px;border:1px solid var(--c-line);filter:grayscale(.65) brightness(.75);transition:filter .6s,transform 1.2s var(--c-ease)}
.c-chap:hover img,.c-chap.is-on img{filter:none}
.c-chap time{display:block;margin-top:14px;font:400 13px/1 var(--c-latin);letter-spacing:.22em;color:var(--c-gold)}
.c-chap b{display:block;margin-top:9px;font:400 16px/1.45 var(--c-serif);letter-spacing:.1em;color:var(--c-iv);font-weight:400;transition:color var(--c-t-ui)}
.c-chap span{display:block;margin-top:6px;font-size:12.5px;line-height:1.75;color:var(--c-iv-3)}
.c-chap.is-on b,.c-chap:hover b{color:var(--c-gold-2)}
.c-flow-state{margin-top:clamp(96px,10vw,150px)}
.c-flow-state .en{font:300 clamp(30px,4.6vw,68px)/1.18 var(--c-latin);letter-spacing:.16em;padding-left:.16em;text-transform:uppercase;color:var(--c-iv)}
.c-flow-state .en em{font-style:normal;color:var(--c-gold-2)}
.c-flow-state .zh{margin-top:22px;font:400 17px/1.8 var(--c-serif);letter-spacing:.42em;padding-left:.42em;color:var(--c-iv-2)}
.c-flow-state .c-fine{max-width:40em;margin:18px auto 0}
.c-flow-lockup{display:flex;align-items:center;justify-content:center;gap:26px;margin:72px auto 0;padding-top:52px;border-top:1px solid var(--c-line);max-width:760px;text-align:left}
.c-flow-lockup img{width:76px;height:76px;filter:drop-shadow(0 0 22px rgba(201,175,122,.35))}
.c-flow-lockup b{display:block;font:500 13px/1.4 var(--c-latin);letter-spacing:.42em;color:var(--c-gold-2);text-transform:uppercase;font-weight:500}
.c-flow-lockup span{display:block;margin-top:8px;font:400 14px/1.4 var(--c-serif);letter-spacing:.42em;color:var(--c-iv-2)}
.c-flow-lockup i{display:block;margin-top:8px;font:300 italic 16px/1.4 var(--c-latin);color:var(--c-iv-3)}
.c-flow .c-acts{margin-top:44px}
.c-trans{max-width:860px;margin:72px auto 0;text-align:left;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.c-trans summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;padding:20px 0;font:400 15px/1.5 var(--c-serif);letter-spacing:.14em;color:var(--c-iv-2)}
.c-trans summary::-webkit-details-marker{display:none}
.c-trans summary small{font:400 12px/1 var(--c-latin);letter-spacing:.2em;color:var(--c-iv-3)}
.c-trans ol{padding-bottom:20px}
.c-trans li{display:grid;grid-template-columns:64px 1fr;padding:10px 0;border-top:1px solid var(--c-line)}
.c-trans time{font:400 13px/1.8 var(--c-latin);letter-spacing:.14em;color:var(--c-gold)}
.c-trans p{font-size:14px;line-height:1.8;color:var(--c-iv-2)}
.c-trans p span{display:block;font:300 italic 15px/1.6 var(--c-latin);color:var(--c-iv-3)}
@media (max-width:1080px){
  .c-chap-rail{grid-template-columns:repeat(5,minmax(200px,1fr));overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding:0 var(--c-gut);margin-left:calc(-1*var(--c-gut));margin-right:calc(-1*var(--c-gut));padding:0 var(--c-gut);scrollbar-width:none}
  .c-chap-rail::-webkit-scrollbar{display:none}
  .c-chap-rail li{scroll-snap-align:start}
}
@media (max-width:720px){
  .c-flow-mark{font-size:clamp(56px,17vw,92px);margin-top:28px}
  .c-film-frame{margin:48px calc(-1*var(--c-gut)) 0}
  .c-film-stage{border-left:0;border-right:0}
  .c-corner{display:none}
  .c-play{width:56px;height:56px;left:16px;bottom:16px}
  .c-play::after{border-left-width:13px;border-top-width:8px;border-bottom-width:8px;margin-left:5px}
  .c-film-top{left:14px;right:14px;top:12px;font-size:10.5px;letter-spacing:.22em}
  .c-film-cta{display:none}
  .c-film-note{padding:0 var(--c-gut);line-height:1.8}
  .c-chap-rail{grid-template-columns:repeat(5,minmax(68%,1fr));gap:14px}
  .c-flow-state .zh{letter-spacing:.24em;padding-left:.24em;font-size:15.5px}
  .c-flow-lockup{flex-direction:column;text-align:center;gap:18px}
  .c-flow-lockup b{letter-spacing:.28em}
  .c-trans li{grid-template-columns:52px 1fr}
}
@media (prefers-reduced-motion:reduce){
  .c-flow::before,.c-flow::after{animation:none}
  .c-flow-mark{background:none}
  .js .c-film-frame .c-corner::before,.js .c-film-frame .c-corner::after{transform:none}
}

/* Integration: shared chrome is isolated from legacy template selectors. */
.c .c-hdr,.c .c-ftr,.c .c-drawer{max-width:none;margin:0;box-shadow:none;border-radius:0}
.c .c-hdr{padding:0}
.c .c-nav{background:none;border:0;box-shadow:none}
.c .c-crest{text-decoration:none}
.c .c-crest img{object-fit:contain}
.c .c-mbar{margin:0;border-radius:0;box-shadow:none}
.c.c-tpl-home .c-h1{font-weight:300}
.c.c-tpl-home .c-cities .co{word-break:normal}
:lang(en) .c-tpl-home .c-cities .cn{display:none}
html:not(.js) .c [role=tabpanel][hidden],html:not(.js) .c .c-more[hidden]{display:block!important}
@media(min-width:1081px) and (max-width:1380px){:lang(ru) .c-hdr .c-nav{display:none}:lang(ru) .c-hdr .c-burger{display:block}:lang(ru) .c-hdr .c-wrap{display:flex;justify-content:center}:lang(ru) .c-burger{position:absolute;right:var(--c-gut)}}
/* Legacy templates style bare nav tags as fixed bars; C nav stays in its grid. */
.c .c-hdr .c-nav,.c .c-drawer nav{position:static;inset:auto;width:auto;height:auto;min-height:0;max-width:none;margin:0;padding:0;border:0;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;z-index:auto}
.c .c-mbar{top:auto}

/* Native nav defaults from older templates must not change the consultation dock. */
.c .c-mbar{padding:0;width:auto;align-items:stretch;gap:0;justify-content:initial;box-sizing:border-box}

.c .c-mbar[hidden]{display:none!important}
/* Legacy flat guides constrained the body itself. Constrain their reading
   content instead so the shared hero, header and footer span the viewport. */
body.c{width:auto!important;max-width:none!important;padding:0!important;min-height:100vh}