:root{
  --ruiqi-purple:#5B2A86;
  --ruiqi-purple-deep:#3A1A5C;
  --ruiqi-purple-light:#A879C4;
  --ruiqi-ink:#171019;
  --ruiqi-cream:#F6F1E6;
  --ruiqi-cream-warm:#ECE5D2;
  --ruiqi-gold:#C29A4B;
  --ruiqi-seal-red:#B33028;
  --ruiqi-rule:rgba(23,16,25,.12);
  --ruiqi-text-soft:rgba(23,16,25,.7);
  --ruiqi-text-mute:rgba(23,16,25,.45);
  --ruiqi-serif:'Noto Serif SC','Songti SC','STSong',serif;
  --ruiqi-sans:'Noto Sans SC','PingFang SC',system-ui,sans-serif;
  --ruiqi-display:'Cormorant Garamond',Georgia,serif;
  --ruiqi-mono:'Inter','SF Pro Text',system-ui,sans-serif;
  --ruiqi-radius-sharp:2px;
  --ruiqi-radius:4px;
  --ruiqi-radius-lg:6px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
::selection{background:var(--ruiqi-purple);color:var(--ruiqi-cream)}
body{
  font-family:var(--ruiqi-sans);
  background:var(--ruiqi-cream);
  color:var(--ruiqi-ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--ruiqi-cream-warm)}
::-webkit-scrollbar-thumb{background:var(--ruiqi-purple);border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--ruiqi-purple-deep)}

/* ===== 滚动进度条 ===== */
#progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:300;
  background:linear-gradient(90deg,var(--ruiqi-purple),var(--ruiqi-gold));
  transition:width .1s linear}

/* ===== NAV ===== */
nav{position:fixed;top:0;left:0;right:0;z-index:200;
  backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);
  background:rgba(23,16,25,.0);border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease}
nav.scrolled{background:rgba(246,241,230,.9);border-bottom-color:var(--ruiqi-rule)}
.nav-inner{max-width:1320px;margin:0 auto;padding:16px 36px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none}
.brand svg{width:38px;height:38px;display:block;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.brand:hover svg{transform:rotate(90deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-cn{font-family:var(--ruiqi-serif);font-weight:700;font-size:17px;letter-spacing:.22em;color:var(--ruiqi-cream);transition:color .35s}
.brand-en{font-family:var(--ruiqi-mono);font-size:9px;letter-spacing:.32em;text-transform:uppercase;color:rgba(246,241,230,.55);margin-top:3px;transition:color .35s}
nav.scrolled .brand-cn{color:var(--ruiqi-ink)}
nav.scrolled .brand-en{color:var(--ruiqi-text-mute)}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{font-size:13.5px;font-weight:500;text-decoration:none;color:rgba(246,241,230,.78);position:relative;transition:color .25s;letter-spacing:.06em}
.nav-links a::after{content:'';position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--ruiqi-gold);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.nav-links a:hover::after{transform:scaleX(1)}
nav.scrolled .nav-links a{color:var(--ruiqi-text-soft)}
.nav-links a:hover{color:var(--ruiqi-gold)}
nav.scrolled .nav-links a:hover{color:var(--ruiqi-purple)}
.nav-cta{background:var(--ruiqi-gold);color:var(--ruiqi-ink)!important;padding:10px 22px;border-radius:var(--ruiqi-radius-sharp);
  font-family:var(--ruiqi-mono);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  transition:transform .2s,box-shadow .2s!important}
.nav-cta::after{display:none}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(194,154,75,.45)}
@media(max-width:900px){.nav-links a:not(.nav-cta){display:none}}

/* ===== HERO ===== */
.hero{position:relative;min-height:100vh;background:var(--ruiqi-ink);overflow:hidden;
  display:flex;flex-direction:column;justify-content:center;padding:140px 36px 0}
#net{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero::after{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(ellipse 90% 70% at 50% 45%,transparent 40%,var(--ruiqi-ink) 100%)}
.hero-inner{position:relative;z-index:3;max-width:1320px;margin:0 auto;width:100%}
.hero-eyebrow{display:inline-flex;align-items:center;gap:12px;padding:8px 18px;
  border:1px solid rgba(194,154,75,.45);border-radius:100px;
  font-family:var(--ruiqi-mono);font-size:11.5px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--ruiqi-gold);background:rgba(194,154,75,.07);margin-bottom:38px;
  animation:fadeUp .9s .1s cubic-bezier(.2,.8,.2,1) both}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--ruiqi-gold);
  box-shadow:0 0 14px var(--ruiqi-gold);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.7)}}
.hero h1{font-family:var(--ruiqi-serif);font-weight:900;
  font-size:clamp(52px,7.2vw,116px);line-height:1.12;letter-spacing:.04em;
  color:var(--ruiqi-cream);margin-bottom:34px}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line>span{display:inline-block;animation:riseIn 1s cubic-bezier(.2,.8,.2,1) both}
.hero h1 .line:nth-child(2)>span{animation-delay:.18s}
@keyframes riseIn{from{transform:translateY(110%);opacity:0}to{transform:translateY(0);opacity:1}}
.hero h1 .au{color:var(--ruiqi-gold);position:relative;text-shadow:0 0 60px rgba(194,154,75,.45)}
.hero h1 .pu{color:var(--ruiqi-purple-light)}
.hero-tagline{font-size:17.5px;color:rgba(246,241,230,.66);max-width:640px;line-height:1.9;margin-bottom:46px;
  animation:fadeUp 1s .45s cubic-bezier(.2,.8,.2,1) both}
.hero-tagline strong{color:var(--ruiqi-cream);font-weight:500}
.hero-tagline em{color:var(--ruiqi-gold);font-style:normal}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.hero-actions{display:flex;gap:18px;flex-wrap:wrap;animation:fadeUp 1s .6s cubic-bezier(.2,.8,.2,1) both}
.btn-au{display:inline-flex;align-items:center;gap:10px;background:var(--ruiqi-gold);color:var(--ruiqi-ink);
  padding:17px 34px;border-radius:var(--ruiqi-radius-sharp);text-decoration:none;
  font-family:var(--ruiqi-mono);font-size:13px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;
  position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s}
.btn-au::before{content:'';position:absolute;top:0;left:-80%;width:50%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(246,241,230,.55),transparent);
  transform:skewX(-20deg);transition:left .5s ease}
.btn-au:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(194,154,75,.4)}
.btn-au:hover::before{left:130%}
.btn-au .arr{transition:transform .25s}
.btn-au:hover .arr{transform:translateX(5px)}
.btn-gh{display:inline-flex;align-items:center;background:transparent;color:var(--ruiqi-cream);
  border:1px solid rgba(246,241,230,.3);padding:17px 34px;border-radius:var(--ruiqi-radius-sharp);text-decoration:none;
  font-family:var(--ruiqi-mono);font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  transition:border-color .25s,background .25s,color .25s}
.btn-gh:hover{border-color:var(--ruiqi-purple-light);background:rgba(168,121,196,.12);color:var(--ruiqi-purple-light)}
.hero-side{position:absolute;right:48px;top:50%;transform:translateY(-50%);z-index:3;
  writing-mode:vertical-rl;font-family:var(--ruiqi-serif);font-weight:700;font-size:15px;
  letter-spacing:.55em;color:rgba(246,241,230,.3);
  animation:fadeUp 1.4s .9s both}
.hero-side::after{content:'';display:inline-block;width:1px;height:80px;background:linear-gradient(180deg,var(--ruiqi-gold),transparent);margin-top:26px}
@media(max-width:1100px){.hero-side{display:none}}
/* 统计条 */
.hero-stats{position:relative;z-index:3;margin-top:84px;border-top:1px solid rgba(246,241,230,.12);
  animation:fadeUp 1.1s .8s both}
.stats-inner{max-width:1320px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(246,241,230,.08)}
.stat{background:var(--ruiqi-ink);padding:30px 26px 34px;transition:background .3s}
.stat:hover{background:#221531}
.stat-num{font-family:var(--ruiqi-display);font-weight:500;font-size:46px;line-height:1.1;color:var(--ruiqi-gold)}
.stat-num .u{font-family:var(--ruiqi-serif);font-size:20px;font-weight:700;margin-left:2px;color:rgba(246,241,230,.85)}
.stat-label{font-size:13px;color:rgba(246,241,230,.5);margin-top:8px;letter-spacing:.1em}
@media(max-width:800px){.stats-inner{grid-template-columns:repeat(2,1fr)}}

/* ===== 跑马灯 ===== */
.marquee{background:var(--ruiqi-ink);border-top:1px solid rgba(246,241,230,.08);overflow:hidden;padding:20px 0;position:relative}
.marquee-track{display:flex;width:max-content;animation:scrollX 32s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.marquee-item{display:flex;align-items:center;gap:36px;padding-right:36px;white-space:nowrap}
.marquee-item .cn{font-family:var(--ruiqi-serif);font-weight:700;font-size:20px;letter-spacing:.3em;color:rgba(246,241,230,.4)}
.marquee-item .en{font-family:var(--ruiqi-display);font-style:italic;font-size:18px;letter-spacing:.12em;color:rgba(194,154,75,.6)}
.marquee-item .knot-sep{width:18px;height:18px;opacity:.4;flex:0 0 auto}

/* ===== 通用 section ===== */
section{position:relative}
.section-inner{max-width:1320px;margin:0 auto;padding:120px 36px}
.section-head{margin-bottom:72px;position:relative}
.sec-eyebrow{font-family:var(--ruiqi-display);font-style:italic;font-size:14px;
  letter-spacing:.32em;text-transform:uppercase;color:var(--ruiqi-purple);margin-bottom:16px;display:flex;align-items:center;gap:14px}
.sec-eyebrow::before{content:'';width:42px;height:1px;background:var(--ruiqi-gold)}
.sec-title{font-family:var(--ruiqi-serif);font-weight:900;font-size:clamp(34px,4vw,56px);line-height:1.18;letter-spacing:.04em}
.sec-title .pu{color:var(--ruiqi-purple)}
.sec-sub{font-size:16px;color:var(--ruiqi-text-mute);margin-top:18px;max-width:680px}
.ghost{position:absolute;right:0;top:-34px;font-family:var(--ruiqi-display);font-weight:600;
  font-size:clamp(90px,11vw,170px);line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(91,42,134,.13);pointer-events:none;user-select:none;font-style:italic}
/* reveal */
.reveal{opacity:0;transform:translateY(42px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== ABOUT ===== */
.about{background:var(--ruiqi-cream)}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.about-card{background:#fffdf8;border:1px solid var(--ruiqi-rule);border-radius:var(--ruiqi-radius-lg);
  padding:42px 36px;position:relative;overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s;will-change:transform}
.about-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--ruiqi-purple),var(--ruiqi-gold));
  transform:scaleX(0);transform-origin:left;transition:transform .45s ease}
.about-card:hover{transform:translateY(-8px);box-shadow:0 24px 60px rgba(58,26,92,.14);border-color:rgba(91,42,134,.3)}
.about-card:hover::before{transform:scaleX(1)}
.about-tag{font-family:var(--ruiqi-mono);font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--ruiqi-gold);margin-bottom:20px}
.about-card h3{font-family:var(--ruiqi-serif);font-weight:700;font-size:23px;letter-spacing:.04em;margin-bottom:16px}
.about-card p{font-size:14.5px;color:var(--ruiqi-text-soft);line-height:1.85}
.about-card p strong{color:var(--ruiqi-purple);font-weight:700}
@media(max-width:980px){.about-grid{grid-template-columns:1fr}}

/* ===== PAIN ===== */
.pain{background:var(--ruiqi-cream-warm)}
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.pain-card{display:flex;gap:26px;background:var(--ruiqi-cream);border:1px solid var(--ruiqi-rule);
  border-radius:var(--ruiqi-radius-lg);padding:36px;transition:transform .35s,box-shadow .35s}
.pain-card:hover{transform:translateY(-6px);box-shadow:0 20px 48px rgba(58,26,92,.12)}
.pain-num{font-family:var(--ruiqi-display);font-weight:600;font-size:54px;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--ruiqi-purple-light);flex:0 0 auto;transition:color .3s}
.pain-card:hover .pain-num{color:var(--ruiqi-purple-light)}
.pain-body h4{font-family:var(--ruiqi-serif);font-size:20px;font-weight:700;letter-spacing:.04em;margin-bottom:10px}
.pain-body p{font-size:14.5px;color:var(--ruiqi-text-soft);margin-bottom:14px}
.pain-result{font-family:var(--ruiqi-mono);font-size:12.5px;color:var(--ruiqi-seal-red);letter-spacing:.04em}
.pain-anchor{margin-top:60px;display:flex;align-items:center;gap:40px;
  background:var(--ruiqi-ink);border-radius:var(--ruiqi-radius-lg);padding:46px 56px;position:relative;overflow:hidden}
.pain-anchor::after{content:'';position:absolute;right:-60px;top:50%;transform:translateY(-50%);
  width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,42,134,.4),transparent 70%);pointer-events:none}
.pain-anchor-num{font-family:var(--ruiqi-display);font-weight:500;font-size:96px;line-height:1;color:var(--ruiqi-gold);flex:0 0 auto}
.pain-anchor-text{display:flex;flex-direction:column;gap:8px}
.pain-anchor-text strong{font-family:var(--ruiqi-serif);font-size:19px;color:var(--ruiqi-cream);letter-spacing:.06em}
.pain-anchor-text span{font-size:15px;color:rgba(246,241,230,.6)}
@media(max-width:880px){.pain-grid{grid-template-columns:1fr}.pain-anchor{flex-direction:column;text-align:center;gap:16px}}

/* ===== POSITION ===== */
.position{background:var(--ruiqi-cream)}
.position-banner{background:linear-gradient(120deg,var(--ruiqi-purple-deep),var(--ruiqi-purple));
  border-radius:var(--ruiqi-radius-lg);padding:54px 60px;text-align:center;margin-bottom:30px;position:relative;overflow:hidden}
.position-banner .knot-bg{position:absolute;right:-40px;top:-60px;width:260px;height:260px;opacity:.12;animation:spin 50s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.position-banner h3{font-family:var(--ruiqi-serif);font-weight:700;font-size:clamp(22px,2.6vw,34px);
  color:var(--ruiqi-cream);letter-spacing:.06em;position:relative;z-index:1}
.position-banner em{color:var(--ruiqi-gold);font-style:normal}
.position-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.position-col{border-radius:var(--ruiqi-radius-lg);padding:42px 44px;transition:transform .35s,box-shadow .35s}
.position-col:hover{transform:translateY(-6px)}
.position-col.dont{background:var(--ruiqi-cream-warm);border:1px solid var(--ruiqi-rule)}
.position-col.do{background:var(--ruiqi-ink);box-shadow:0 18px 50px rgba(23,16,25,.25)}
.position-col h4{font-family:var(--ruiqi-mono);font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  margin-bottom:26px;display:flex;align-items:center;gap:12px}
.position-col.dont h4{color:var(--ruiqi-text-mute)}
.position-col.do h4{color:var(--ruiqi-gold)}
.position-mark{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;
  border-radius:50%;font-size:13px;flex:0 0 auto}
.dont .position-mark{border:1px solid rgba(179,48,40,.5);color:var(--ruiqi-seal-red)}
.do .position-mark{background:var(--ruiqi-gold);color:var(--ruiqi-ink);font-weight:700}
.position-col ul{list-style:none}
.position-col li{padding:13px 0;font-size:15px;border-bottom:1px dashed var(--ruiqi-rule)}
.position-col.dont li{color:var(--ruiqi-text-mute);text-decoration:line-through;text-decoration-color:rgba(179,48,40,.45);text-decoration-thickness:1px}
.position-col.do li{color:rgba(246,241,230,.85);border-bottom-color:rgba(246,241,230,.12)}
.position-col li:last-child{border-bottom:none}
.position-quote{margin-top:46px;text-align:center;font-family:var(--ruiqi-display);font-style:italic;
  font-size:clamp(19px,2.2vw,26px);color:var(--ruiqi-purple);letter-spacing:.06em}
@media(max-width:880px){.position-grid{grid-template-columns:1fr}}

/* ===== SERVICES ===== */
.services{background:var(--ruiqi-ink)}
.services .sec-eyebrow{color:var(--ruiqi-gold)}
.services .sec-title{color:var(--ruiqi-cream)}
.services .sec-sub{color:rgba(246,241,230,.5)}
.services .ghost{-webkit-text-stroke-color:rgba(246,241,230,.07)}
.services-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.service-card{background:rgba(246,241,230,.04);border:1px solid rgba(246,241,230,.1);
  border-radius:var(--ruiqi-radius-lg);padding:34px 26px 38px;position:relative;overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),background .35s,border-color .35s}
.service-card::after{content:'';position:absolute;left:0;right:0;bottom:0;height:0;
  background:linear-gradient(180deg,transparent,rgba(91,42,134,.35));transition:height .4s ease;pointer-events:none}
.service-card:hover{transform:translateY(-10px);background:rgba(91,42,134,.18);border-color:rgba(168,121,196,.5)}
.service-card:hover::after{height:60%}
.service-step{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.26em;color:var(--ruiqi-gold);margin-bottom:22px}
.service-glyph{font-family:var(--ruiqi-display);font-weight:600;font-size:44px;line-height:1;
  color:transparent;-webkit-text-stroke:1.2px var(--ruiqi-purple-light);margin-bottom:20px;transition:color .35s}
.service-card:hover .service-glyph{color:var(--ruiqi-purple-light)}
.service-card h4{font-family:var(--ruiqi-serif);font-weight:700;font-size:22px;letter-spacing:.1em;color:var(--ruiqi-cream);margin-bottom:6px}
.service-cat{font-size:11.5px;color:var(--ruiqi-gold);letter-spacing:.12em;display:block;margin-bottom:16px}
.service-card p{font-size:13px;color:rgba(246,241,230,.6);line-height:1.8;position:relative;z-index:1}
.service-card p strong{color:var(--ruiqi-cream);font-weight:500}
@media(max-width:1080px){.services-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.services-grid{grid-template-columns:1fr}}

/* ===== DELIVERY ===== */
.delivery{background:var(--ruiqi-cream)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;position:relative;padding-top:36px}
.timeline::before{content:'';position:absolute;top:0;left:4%;right:4%;height:2px;
  background:linear-gradient(90deg,var(--ruiqi-purple),var(--ruiqi-gold))}
.timeline-step{position:relative}
.timeline-marker{position:absolute;top:-36px;left:50%;transform:translate(-50%,-50%);
  width:52px;height:52px;border-radius:50%;background:var(--ruiqi-cream);
  border:2px solid var(--ruiqi-purple);display:flex;align-items:center;justify-content:center;
  font-family:var(--ruiqi-serif);font-weight:900;font-size:19px;color:var(--ruiqi-purple);
  transition:background .3s,color .3s,box-shadow .3s}
.timeline-step:hover .timeline-marker{background:var(--ruiqi-purple);color:var(--ruiqi-cream);box-shadow:0 0 0 8px rgba(91,42,134,.15)}
.timeline-card{background:#fffdf8;border:1px solid var(--ruiqi-rule);border-radius:var(--ruiqi-radius-lg);
  padding:42px 30px 34px;margin-top:30px;height:100%;transition:transform .35s,box-shadow .35s}
.timeline-step:hover .timeline-card{transform:translateY(-6px);box-shadow:0 20px 48px rgba(58,26,92,.12)}
.timeline-phase{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.26em;color:var(--ruiqi-gold);margin-bottom:12px}
.timeline-card h4{font-family:var(--ruiqi-serif);font-weight:900;font-size:24px;letter-spacing:.1em;margin-bottom:4px}
.timeline-dur{font-family:var(--ruiqi-display);font-style:italic;font-size:15px;color:var(--ruiqi-purple);margin-bottom:14px}
.timeline-card>p{font-size:13.5px;color:var(--ruiqi-text-soft);margin-bottom:18px;line-height:1.8}
.timeline-deliver{border-top:1px dashed var(--ruiqi-rule);padding-top:14px;font-size:12.5px;color:var(--ruiqi-text-mute);line-height:1.7}
.timeline-deliver strong{display:block;font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.22em;color:var(--ruiqi-purple);margin-bottom:6px}
.delivery-note{margin-top:64px;text-align:center;background:var(--ruiqi-cream-warm);
  border:1px solid var(--ruiqi-rule);border-radius:var(--ruiqi-radius-lg);padding:30px 40px}
.delivery-note strong{font-family:var(--ruiqi-serif);font-size:19px;letter-spacing:.14em;color:var(--ruiqi-purple);display:block;margin-bottom:6px}
.delivery-note span{font-size:14px;color:var(--ruiqi-text-mute)}
@media(max-width:980px){.timeline{grid-template-columns:1fr 1fr}.timeline::before{display:none}.timeline-marker{display:none}.timeline-card{margin-top:0}}
@media(max-width:640px){.timeline{grid-template-columns:1fr}}

/* ===== CASES ===== */
.cases{background:var(--ruiqi-cream-warm)}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{background:var(--ruiqi-cream);border:1px solid var(--ruiqi-rule);border-radius:var(--ruiqi-radius-lg);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .35s,box-shadow .35s}
.case-card:hover{transform:translateY(-8px);box-shadow:0 26px 64px rgba(58,26,92,.16)}
.case-header{background:var(--ruiqi-ink);padding:30px 32px 26px;position:relative;overflow:hidden}
.case-header::after{content:'';position:absolute;right:-30px;bottom:-50px;width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,42,134,.5),transparent 70%)}
.case-industry{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.26em;color:var(--ruiqi-gold);margin-bottom:12px}
.case-header h4{font-family:var(--ruiqi-serif);font-weight:700;font-size:21px;letter-spacing:.04em;color:var(--ruiqi-cream);margin-bottom:8px;position:relative;z-index:1}
.case-tag{font-size:12px;color:rgba(246,241,230,.55);letter-spacing:.08em}
.case-body{padding:28px 32px;flex:1;display:flex;flex-direction:column;gap:18px}
.case-row-label{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.24em;color:var(--ruiqi-purple);margin-bottom:5px}
.case-row p{font-size:13.5px;color:var(--ruiqi-text-soft);line-height:1.75}
.case-row p strong{color:var(--ruiqi-purple);font-weight:700}
.case-metric{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--ruiqi-rule)}
.metric{padding:20px 16px;text-align:center}
.metric+.metric{border-left:1px solid var(--ruiqi-rule)}
.metric-val{font-family:var(--ruiqi-display);font-weight:600;font-size:30px;color:var(--ruiqi-purple)}
.metric-lbl{font-size:11.5px;color:var(--ruiqi-text-mute);margin-top:4px;letter-spacing:.06em}
.cases-note{margin-top:56px;text-align:center;font-size:15.5px;color:var(--ruiqi-text-soft);
  background:var(--ruiqi-cream);border:1px dashed rgba(91,42,134,.35);border-radius:var(--ruiqi-radius-lg);padding:26px 36px}
.cases-note strong{color:var(--ruiqi-purple)}
@media(max-width:1020px){.cases-grid{grid-template-columns:1fr}}

/* ===== CTA ===== */
.cta{background:var(--ruiqi-ink);position:relative;overflow:hidden}
.cta .knot-wm{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:760px;height:760px;
  opacity:.05;animation:spin 90s linear infinite;pointer-events:none}
.cta-inner{position:relative;z-index:2;max-width:1100px;margin:0 auto;padding:130px 36px;text-align:center}
.cta h2{font-family:var(--ruiqi-serif);font-weight:900;font-size:clamp(38px,5vw,68px);
  letter-spacing:.1em;color:var(--ruiqi-cream);margin-bottom:26px}
.cta h2 em{color:var(--ruiqi-gold);font-style:normal}
.cta-sub{font-size:16.5px;color:rgba(246,241,230,.6);line-height:1.95;margin-bottom:60px}
.cta-sub strong{color:var(--ruiqi-cream)}
.cta-card{display:grid;grid-template-columns:1.25fr 1fr;text-align:left;
  background:rgba(246,241,230,.05);border:1px solid rgba(246,241,230,.14);
  border-radius:var(--ruiqi-radius-lg);overflow:hidden;backdrop-filter:blur(6px)}
.cta-card-left{padding:48px 52px;border-right:1px solid rgba(246,241,230,.12)}
.cta-card-left h3{font-family:var(--ruiqi-serif);font-size:25px;font-weight:700;letter-spacing:.04em;color:var(--ruiqi-cream);margin-bottom:14px}
.cta-card-left>p{font-size:14.5px;color:rgba(246,241,230,.6);line-height:1.85;margin-bottom:26px}
.cta-deliver{display:flex;flex-direction:column;gap:10px}
.cta-deliver-item{display:flex;align-items:center;gap:12px;font-size:14px;color:rgba(246,241,230,.8)}
.cta-deliver-item::before{content:'';width:8px;height:8px;flex:0 0 auto;background:var(--ruiqi-gold);
  transform:rotate(45deg)}
.cta-card-right{padding:48px 52px;display:flex;flex-direction:column;justify-content:center;gap:26px}
.cta-contact-label{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.26em;color:var(--ruiqi-gold);margin-bottom:5px}
.cta-contact-val{font-size:16px;color:var(--ruiqi-cream);letter-spacing:.03em}
.cta-final{margin-top:80px;font-family:var(--ruiqi-serif);font-weight:900;
  font-size:clamp(30px,4vw,52px);letter-spacing:.85em;text-indent:.85em;color:rgba(246,241,230,.22)}
@media(max-width:880px){.cta-card{grid-template-columns:1fr}.cta-card-left{border-right:none;border-bottom:1px solid rgba(246,241,230,.12)}}

/* ===== FOOTER ===== */
footer{background:var(--ruiqi-ink);border-top:1px solid rgba(246,241,230,.1)}
.footer-inner{max-width:1320px;margin:0 auto;padding:70px 36px 40px;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px}
.footer-brand p{font-size:13.5px;color:rgba(246,241,230,.45);line-height:1.85;margin-top:18px;max-width:340px}
.footer-col h5{font-family:var(--ruiqi-mono);font-size:11px;letter-spacing:.26em;color:var(--ruiqi-gold);margin-bottom:20px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13.5px;color:rgba(246,241,230,.55);text-decoration:none;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--ruiqi-gold);padding-left:5px}
.footer-bottom{border-top:1px solid rgba(246,241,230,.08);padding:26px 36px;
  display:flex;justify-content:space-between;align-items:center;max-width:1320px;margin:0 auto;flex-wrap:wrap;gap:10px}
.footer-bottom span{font-size:12px;color:rgba(246,241,230,.35);letter-spacing:.06em}
.footer-bottom .slogan{font-family:var(--ruiqi-serif);letter-spacing:.3em;color:rgba(194,154,75,.55)}
@media(max-width:980px){.footer-inner{grid-template-columns:1fr 1fr}}

/* ===== 开场序章：盘长结描边 ===== */
#intro{position:fixed;inset:0;z-index:1000;background:var(--ruiqi-ink);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:36px;
  transition:opacity .7s ease,visibility .7s;cursor:pointer}
#intro.done{opacity:0;visibility:hidden;pointer-events:none}
#intro svg{width:168px;height:168px}
#intro .ik{fill:none;stroke-width:10;stroke-linejoin:round;stroke-dasharray:420;stroke-dashoffset:420;
  animation:ikDraw 1.15s cubic-bezier(.6,.05,.3,1) forwards}
#intro .ik-a{stroke:#5B2A86;animation-delay:.12s}
#intro .ik-b{stroke:#A879C4;animation-delay:.38s}
@keyframes ikDraw{to{stroke-dashoffset:0}}
#intro .ik-dot{fill:var(--ruiqi-gold);opacity:0;animation:ikDot .45s ease forwards 1.35s}
@keyframes ikDot{to{opacity:1}}
.intro-word{font-family:var(--ruiqi-serif);font-weight:700;font-size:17px;color:rgba(246,241,230,.78);
  opacity:0;animation:ikWord 1.1s cubic-bezier(.2,.8,.2,1) forwards 1.15s}
@keyframes ikWord{from{opacity:0;letter-spacing:1.1em}to{opacity:1;letter-spacing:.6em}}
/* 序章未结束时暂停 Hero 入场动画 */
body:not(.ready) .hero-eyebrow,
body:not(.ready) .hero h1 .line>span,
body:not(.ready) .hero-tagline,
body:not(.ready) .hero-actions,
body:not(.ready) .hero-stats,
body:not(.ready) .hero-3d,
body:not(.ready) .hero-side{animation-play-state:paused}

/* ===== Hero 右栏 · 3D 盘长结 ===== */
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.hero-3d{position:relative;display:flex;align-items:center;justify-content:center;
  animation:fadeUp 1.2s .7s cubic-bezier(.2,.8,.2,1) both}
#knot3d{width:100%;max-width:560px;aspect-ratio:1/1;cursor:grab;touch-action:none;display:block}
#knot3d.dragging{cursor:grabbing}
.hero-3d .hint{position:absolute;bottom:-4px;left:50%;transform:translateX(-50%);
  font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.3em;text-transform:uppercase;
  color:rgba(246,241,230,.32);white-space:nowrap}
@media(max-width:1020px){.hero-3d{display:none}.hero-grid{grid-template-columns:1fr}}

/* ===== 三流同动 · 滚动叙事 ===== */
.flows{background:var(--ruiqi-ink)}
.flows-wrap{height:300vh}
.flows-sticky{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  justify-content:center;overflow:hidden;padding:92px 36px 30px}
.flows-head{max-width:1320px;margin:0 auto;width:100%}
.flows-head .sec-eyebrow{color:var(--ruiqi-gold)}
.flows-head .sec-title{color:var(--ruiqi-cream)}
.flows-head .sec-title .lt{color:var(--ruiqi-purple-light)}
.flows-head .sec-sub{color:rgba(246,241,230,.5)}
.flows-stage{flex:1 1 auto;max-width:1320px;margin:0 auto;width:100%;min-height:0;display:flex;align-items:center}
#flowsvg{width:100%;height:100%;max-height:560px;display:block}
#flowsvg .flabel{font-family:var(--ruiqi-serif);font-size:19px;font-weight:700;letter-spacing:.12em}
#flowsvg .fsub{font-family:var(--ruiqi-mono);font-size:10px;letter-spacing:.22em;opacity:.55}
.flows-caption{max-width:1320px;margin:6px auto 0;width:100%;text-align:center;
  font-family:var(--ruiqi-serif);font-size:clamp(17px,2vw,24px);font-weight:700;letter-spacing:.14em;
  color:var(--ruiqi-cream);opacity:0;transform:translateY(14px);transition:opacity .6s,transform .6s}
.flows-caption em{color:var(--ruiqi-gold);font-style:normal}
.flows-caption.show{opacity:1;transform:none}
.flows-progress{position:absolute;right:40px;top:50%;transform:translateY(-50%);width:2px;height:120px;
  background:rgba(246,241,230,.12);border-radius:2px;overflow:hidden}
.flows-progress i{position:absolute;left:0;top:0;width:100%;height:0;background:var(--ruiqi-gold);display:block}
@media(max-width:760px){.flows-wrap{height:220vh}.flows-progress{display:none}}

/* ===== Spotlight 流光描边 ===== */
.spot{position:relative}
.spot>i.glow{position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  opacity:0;transition:opacity .35s;padding:1.6px;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),
    rgba(194,154,75,.95),rgba(91,42,134,.5) 42%,transparent 72%);
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude}
.spot:hover>i.glow{opacity:1}

/* 减少动效偏好 */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
  .reveal{opacity:1;transform:none}
  .flows-wrap{height:auto}
  .flows-caption{opacity:1;transform:none}
}