/* =============================================================
   AVELIS 艾维丝 — 跨境美妆供应链 · 品牌全案运营
   Shared design system for all pages (zh + en)
   Direction: white ground / ink type / single bronze accent / editorial
   ============================================================= */

/* ---------- tokens ---------- */
:root{
  --bg:#FFFFFF;
  --surface:#F7F6F3;
  --surface-2:#EFEDE8;
  --ink:#0F1012;
  --ink-2:#2C2E33;
  --muted:#6B6E75;
  --muted-2:#75787E;
  --line:#E5E4E0;
  --line-soft:#F0EFEB;
  --gold:#A8814F;          /* 装饰用金色（线/点/描边） */
  --gold-text:#8E6B3B;     /* 文字用金色：白底对比度 4.65:1（原 #A8814F 仅 3.39:1）*/
  --gold-l:#C4A576;
  --dark:#100F0D;
  --dark-2:#191815;
  --dark-muted:#D6D3CB;
  --dark-muted-2:#B4B1A8;
  --dark-line:rgba(255,255,255,.11);

  --r:2px;
  --image-r:16px;
  --maxw:1320px;
  --gut:clamp(20px,4.4vw,64px);
  --sec:clamp(64px,8vw,140px);
  --ease:cubic-bezier(.4,0,.2,1);

  --sans:"Inter","Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  --display:"Cormorant Garamond","Source Serif 4","Songti SC","Source Han Serif SC","Noto Serif SC",Georgia,serif;
  --display-sc:"Noto Serif CJK SC","Source Han Serif SC","Source Han Serif CN","Noto Serif SC","Songti SC","STSong","SimSun","Songti TC",serif;
}

/* ---------- reset ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.7;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
::selection{background:var(--gold);color:#fff}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto!important}
}

/* ---------- type ---------- */
h1,h2,h3,h4{font-weight:400;line-height:1.16;letter-spacing:-.01em}
.display,
html.zh h1,html.zh h2,html.zh h3,
html.en h1,html.en h2,html.en h3{font-family:var(--display);font-weight:400}
html.zh h1,html.zh h2,html.zh h3{font-family:var(--display-sc);font-weight:600;letter-spacing:0}

h1{font-size:clamp(32px,5vw,68px);line-height:1.08}
h2{font-size:clamp(26px,3.1vw,44px);line-height:1.14}
h3{font-size:clamp(19px,1.5vw,24px)}
h4{font-family:var(--sans);font-size:15px;font-weight:600;letter-spacing:0}
p{color:var(--ink-2)}
.lead{font-size:clamp(16px,1.25vw,19px);line-height:1.75;color:var(--ink-2);max-width:60ch}
.eyebrow{
  font-family:var(--display);font-size:12px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--gold-text);
}
html.zh .eyebrow{font-family:var(--sans);font-weight:500;letter-spacing:.32em;font-size:11.5px}
.muted{color:var(--muted)}
.small{font-size:13px;line-height:1.7}
.num{font-variant-numeric:tabular-nums}

.page-home main .muted,
.page-home main .stats span,
.page-home main .feats p,
.page-home main .trust-item p,
.page-home main .metrics span,
.page-home main .metrics .src,
.page-home main .small,
.page-home main .lead{color:var(--ink-2)}
.page-home main .cta p,
.page-home main .cta .lead,
.page-home main .cta .note-sm{color:#fff!important}
html.zh .page-home main .eyebrow,
html.zh .page-home .hero .eyebrow{display:none}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
.wrap-wide{width:100%;max-width:1600px;margin:0 auto;padding:0 var(--gut)}
.sec{padding:var(--sec) 0}
.sec-sm{padding:clamp(44px,5vw,80px) 0}
.tight{padding-top:0}
.center{text-align:center}
.rule{height:1px;background:var(--line);border:0;width:100%}
.rule-ink{height:1px;background:var(--line-soft);border:0}

.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:clamp(32px,4vw,56px)}
.sec-head .stack{max-width:70ch}
.sec-head h2{margin-top:14px}
.sec-head .more{white-space:nowrap}
@media (max-width:820px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:18px}
}

.grid{display:grid;gap:clamp(20px,2.6vw,40px)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:1000px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){.g3{grid-template-columns:1fr}}
@media (max-width:720px){.g2,.g4{grid-template-columns:1fr}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:50px;padding:0 30px;border:1px solid var(--ink);border-radius:var(--r);
  background:var(--ink);color:#fff;font-size:13px;font-weight:500;letter-spacing:.08em;
  cursor:pointer;transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
  text-align:center;
}
html.zh .btn{letter-spacing:.14em}
.btn:hover{background:transparent;color:var(--ink)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--light{background:#fff;border-color:#fff;color:var(--ink)}
.btn--light:hover{background:transparent;color:#fff}
.btn--online{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn--online:hover{background:#fff;border-color:#fff;color:var(--ink)}
.btn--sm{min-height:42px;padding:0 20px;font-size:12px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
@media (max-width:520px){
  .btn{width:100%}
  .btn-row{gap:10px}
}

.link-more{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:4px;
  transition:color .3s var(--ease),border-color .3s var(--ease);
}
.link-more:hover{color:var(--gold-text);border-color:var(--gold)}
html.zh .link-more{letter-spacing:.18em}
/* 移动端：把「查看更多」这类次级链接的点击区域放大到 44px 触控标准 */
@media (max-width:760px){
  .link-more{min-height:44px;padding:12px 0;font-size:13px}
}

/* ---------- timeline（用于合作流程 / 案例过程 / 发展历程）---------- */
.timeline{margin-top:clamp(26px,3.4vw,46px);border-top:1px solid var(--line)}
.timeline__row{display:grid;grid-template-columns:150px 1fr;gap:clamp(18px,3vw,44px);
  padding:clamp(20px,2.6vw,30px) 0;border-bottom:1px solid var(--line);align-items:start}
.timeline__when{font-family:var(--display);font-size:15px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold);padding-top:4px}
html.zh .timeline__when{font-family:var(--sans);font-weight:600;font-size:14px;letter-spacing:.06em}
.timeline__body h3{font-size:clamp(17px,1.3vw,20px);margin-bottom:8px}
.timeline__body p{font-size:15px;color:var(--ink-2);max-width:62ch}
@media (max-width:680px){
  .timeline__row{grid-template-columns:1fr;gap:8px}
  .timeline__when{padding-top:0}
}

/* ---------- 全宽引用块（打破网格节奏）---------- */
.pull-wide{margin:clamp(34px,5vw,72px) 0 0;padding:clamp(28px,4vw,52px) 0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.pull-wide p{font-family:var(--display);font-size:clamp(22px,3.2vw,40px);line-height:1.35;
  color:var(--ink);max-width:22ch;margin:0 auto;font-weight:400}
html.zh .pull-wide p{font-family:var(--sans);font-weight:600;font-size:clamp(20px,2.6vw,32px);letter-spacing:.01em}
.pull-wide cite{display:block;margin-top:20px;font-style:normal;font-size:13px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted)}

/* ---------- header ---------- */
.topbar{
  background:var(--dark);color:var(--dark-muted);font-size:12px;letter-spacing:.06em;
  min-height:38px;display:flex;align-items:center;
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar .tb-right{display:flex;align-items:center;gap:18px}
.topbar a:hover{color:#fff}
.topbar .dot{width:3px;height:3px;background:var(--gold);border-radius:50%;display:inline-block}
@media (max-width:860px){.topbar .tb-left span.tb-hide{display:none}}
/* phones: the topbar must not squeeze three items into 375px */
@media (max-width:640px){
  .topbar{font-size:11px;min-height:34px}
  .topbar .tb-right a[href^="mailto"]{display:none}
  .topbar .dot{display:none}
  .topbar .tb-left span{margin-left:0!important}
}

.site-head{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;gap:clamp(18px,3vw,52px);min-height:76px}
.brand{display:flex;align-items:center;gap:13px;white-space:nowrap}
.brand .mark{
  font-family:var(--display);font-size:24px;font-weight:600;letter-spacing:.24em;
  text-transform:uppercase;line-height:1;
}
.brand .mark-sc{font-size:15px;font-weight:600;letter-spacing:.3em;color:var(--ink)}
.brand .sub{font-size:10.5px;letter-spacing:.24em;color:var(--muted-2);text-transform:uppercase;margin-left:4px}
.nav{display:flex;align-items:center;gap:clamp(14px,1.8vw,30px);margin-left:auto}
.nav a{
  font-size:13.5px;color:var(--ink-2);padding:8px 0;position:relative;white-space:nowrap;
  transition:color .25s var(--ease);
}
html.zh .nav a{font-size:14px}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease);
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:500}

.head-tools{display:flex;align-items:center;gap:14px}
.lang{
  display:flex;align-items:center;gap:6px;font-size:12.5px;letter-spacing:.08em;color:var(--muted);
  border:1px solid var(--line);padding:6px 12px;border-radius:99px;
}
.lang a{color:var(--muted)}
.lang a.on{color:var(--ink);font-weight:500}
.lang a:hover{color:var(--ink)}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r);
  align-items:center;justify-content:center;cursor:pointer;
}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);transition:transform .3s var(--ease);
}
.burger span::before{top:-6px}
.burger span::after{top:6px}
@media (max-width:1080px){
  .nav{
    position:fixed;inset:76px 0 0 0;background:#fff;flex-direction:column;align-items:flex-start;
    gap:0;padding:12px var(--gut) 40px;overflow-y:auto;margin:0;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .28s var(--ease),transform .28s var(--ease);
    border-top:1px solid var(--line);
  }
  .nav.open{opacity:1;transform:none;pointer-events:auto}
  .nav a{font-size:19px;width:100%;padding:18px 0;border-bottom:1px solid var(--line-soft)}
  .nav a::after{display:none}
  .burger{display:inline-flex;margin-left:auto}
  .head-tools{margin-left:0}
}
@media (max-width:520px){
  .brand .sub{display:none}
  .brand .mark{font-size:20px;letter-spacing:.18em}
  .head-inner{min-height:64px;gap:12px}
  .nav{inset:64px 0 0 0}
  .lang{padding:8px 12px;font-size:12px;min-height:40px}
}

/* ---------- hero (大横图) ---------- */
.hero{
  position:relative;min-height:min(86vh,780px);display:flex;align-items:flex-end;
  background:var(--dark);color:#fff;overflow:hidden;
}
.hero--page{min-height:min(58vh,540px);align-items:center}
.hero__media{position:absolute;inset:0}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%;z-index:0}
.hero__carousel{position:absolute;inset:0;overflow:hidden;background:var(--dark)}
.hero__slide{opacity:0;transition:opacity 700ms ease}
.hero__slide.is-active{opacity:1}
.hero__dots{position:absolute;z-index:3;right:var(--gut);bottom:20px;display:flex;gap:8px}
.hero__dot{width:28px;height:3px;padding:0;border:0;background:rgba(255,255,255,.38);cursor:pointer;transition:background-color 180ms ease,transform 180ms ease}
.hero__dot.is-active{background:#fff;transform:scaleX(1.15)}
.hero__dot:focus-visible{outline:2px solid #fff;outline-offset:4px}
@media (prefers-reduced-motion:reduce){.hero__slide{transition:none}}
.hero__media::after{
  content:attr(data-ph);position:absolute;right:18px;bottom:16px;font-size:10.5px;letter-spacing:.18em;
  text-transform:uppercase;color:rgba(255,255,255,.42);
}
.hero__scrim{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,9,8,.92) 0%,rgba(10,9,8,.8) 28%,rgba(10,9,8,.5) 55%,rgba(10,9,8,.15) 100%);
}
.hero--page .hero__scrim{background:linear-gradient(90deg,rgba(10,9,8,.78) 0%,rgba(10,9,8,.42) 60%,rgba(10,9,8,.2) 100%)}
.hero__inner{position:relative;z-index:2;padding:clamp(72px,9vw,150px) 0 clamp(56px,7vw,96px);width:100%}
.hero--page .hero__inner{padding:clamp(64px,8vw,120px) 0}
.hero .eyebrow{color:var(--gold-l)}
.hero h1{color:#fff;margin:20px 0 24px;max-width:20ch;text-shadow:0 2px 24px rgba(0,0,0,.78),0 1px 4px rgba(0,0,0,.5)}
html.zh .page-home .hero h1{font-size:clamp(38px,4.15vw,56px);max-width:27ch}
html.zh .page-home .hero-nowrap{white-space:nowrap}
html.zh .page-home .case-title-nowrap{white-space:nowrap;font-size:clamp(30px,2.6vw,40px)}
.hero--page h1{max-width:26ch;margin:18px 0 18px}
.hero p.lead{color:rgba(255,255,255,.88);max-width:56ch;text-shadow:0 1px 14px rgba(0,0,0,.72)}
.hero .btn-row{margin-top:38px}
.hero .btn:hover{background:#fff;border-color:#fff;color:var(--ink)}
.hero .btn--online:hover{background:#fff;border-color:#fff;color:var(--ink)}
.hero__meta{
  position:absolute;z-index:3;right:var(--gut);bottom:clamp(28px,4vw,54px);
  display:flex;gap:34px;align-items:flex-end;
}
.hero__meta div{text-align:right}
.hero__meta b{display:block;font-family:var(--display);font-size:clamp(24px,2.6vw,38px);font-weight:500;line-height:1}
.hero__meta span{display:block;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.74);margin-top:8px}
@media (max-width:1080px){.hero__meta{display:none}}
@media (max-width:720px){
  .hero{min-height:auto}
  .hero--page{min-height:auto}
  .hero__inner{padding:76px 0 64px}
  .hero h1{font-size:clamp(30px,8.4vw,44px)}
}

/* image placeholders — replace with real photography */
.ph{position:relative;background:var(--surface);overflow:hidden}
.ph::after{
  content:attr(data-ph);position:absolute;left:14px;bottom:12px;font-size:10px;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(0,0,0,.32);
}
.ph--dark::after{color:rgba(255,255,255,.45)}
/* studio-light gradients stand in for photography until assets arrive */
.img-a{background:
  radial-gradient(120% 100% at 78% 12%,#F3E9DC 0%,#E4D6C3 44%,#CDBBA2 100%)}
.img-b{background:
  radial-gradient(110% 90% at 30% 20%,#F1EDE7 0%,#DED7CD 48%,#B9B1A4 100%)}
.img-c{background:
  radial-gradient(120% 100% at 70% 80%,#EFE2D6 0%,#DCC6B4 46%,#B08E6E 100%)}
.img-d{background:
  radial-gradient(120% 90% at 25% 15%,#E9E4DC 0%,#CFC7BA 50%,#8E8577 100%)}
.img-skin{background:
  radial-gradient(120% 95% at 70% 25%,#F6E7DE 0%,#E8CFC0 46%,#C9A48D 100%)}
.img-dk1{background:
  radial-gradient(90% 80% at 28% 30%,#4A3B2E 0%,#241D17 52%,#0E0C0A 100%)}
.img-dk2{background:
  radial-gradient(85% 75% at 72% 26%,#54463A 0%,#2A231C 50%,#100E0C 100%)}
.img-dk3{background:
  radial-gradient(90% 80% at 40% 70%,#3F3327 0%,#221B15 52%,#0D0B09 100%)}
.ph-tag{
  position:absolute;z-index:2;left:16px;top:16px;background:#fff;color:var(--ink);
  font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;padding:6px 10px;
}

/* ---------- numbers band ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stats .item{padding:clamp(28px,3.4vw,48px) clamp(16px,2vw,30px);border-left:1px solid var(--line)}
.stats .item:first-child{border-left:0;padding-left:0}
.stats b{display:block;font-family:var(--display);font-size:clamp(30px,3.6vw,52px);font-weight:500;line-height:1;letter-spacing:-.01em}
html.zh .stats b{font-family:var(--sans);font-weight:600}
.stats span{display:block;font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.6}
@media (max-width:820px){
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stats .item{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .stats .item:nth-child(3),.stats .item:nth-child(4){border-top:1px solid var(--line)}
  .stats .item:nth-child(odd){padding-right:16px}
}

/* ---------- editorial split (text + image) ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,80px);align-items:center}
.split--wide{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.split--flip .split__media{order:-1}
@media (max-width:900px){
  .split,.split--wide{grid-template-columns:1fr;gap:28px}
  .split--flip .split__media{order:0}
}
.split__media{aspect-ratio:4/3;border-radius:var(--image-r);overflow:hidden}
.split__media--tall{aspect-ratio:3/4}
.content-carousel{position:relative;aspect-ratio:16/9;border-radius:var(--image-r);overflow:hidden;background:var(--dark)}
.content-carousel__slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:translateX(100%);transition:transform 520ms ease,opacity 520ms ease}
.content-carousel__slide.is-active{opacity:1;transform:translateX(0)}
.content-carousel__slide.is-leaving{opacity:1;transform:translateX(-100%)}
.content-carousel__dots{position:absolute;z-index:1;right:18px;bottom:16px;display:flex;gap:6px}
.content-carousel__dots button{width:22px;height:3px;padding:0;border:0;background:rgba(255,255,255,.42);cursor:pointer}
.content-carousel__dots button.is-active{background:#fff}
.content-carousel__dots button:focus-visible{outline:2px solid #fff;outline-offset:3px}
@media (prefers-reduced-motion:reduce){.content-carousel__slide{transition:none;transform:none}.content-carousel__slide:not(.is-active){display:none}}
.split__body h2{margin:16px 0 20px}
.split__body p+p{margin-top:16px}

/* ---------- feature list (numbered, no icon toppers) ---------- */
.feats{border-top:1px solid var(--line)}
.feats .row{
  display:grid;grid-template-columns:64px minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(16px,3vw,48px);
  padding:clamp(26px,3vw,40px) 0;border-bottom:1px solid var(--line);align-items:start;
}
.feats .idx{font-family:var(--display);font-size:15px;letter-spacing:.14em;color:var(--gold-text);padding-top:4px}
.feats h3{margin:0}
.feats p{font-size:15px;color:var(--muted);margin:0}
@media (max-width:760px){
  .feats .row{grid-template-columns:1fr;gap:10px}
  .feats .idx{padding-top:0}
}

/* ---------- trust grid (首页信任区) ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,40px);margin-top:clamp(28px,4vw,48px)}
.trust-item{text-align:left}
.trust-ico{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--surface);color:var(--gold-text);margin-bottom:16px}
.trust-ico svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.trust-item h3{font-size:17px;margin:0 0 8px;font-weight:600}
.trust-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
@media (max-width:900px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.trust-grid{grid-template-columns:1fr}}

/* ---------- cards ---------- */
.cards{display:grid;gap:clamp(16px,2.2vw,32px)}
.cards--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cards--2{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.cards--3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:680px){.cards--3,.cards--2{grid-template-columns:1fr}}

.card__media{aspect-ratio:4/5;border-radius:var(--image-r);overflow:hidden;position:relative}
.card__media--wide{aspect-ratio:16/10}
.card__body{padding-top:18px}
.card__body h3{margin-bottom:8px}
.card__body p{font-size:14px;color:var(--muted)}
.card__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);padding:5px 10px;border-radius:99px;
}
html.zh .tag{letter-spacing:.14em}

/* link card (whole tile is a link) */
.tile{display:block;position:relative}
.tile:hover .card__media::after,.tile:hover .split__media::after{opacity:1}
.tile .card__media::after,.tile .split__media::after{
  content:"";position:absolute;inset:0;background:rgba(16,15,13,.12);opacity:0;
  transition:opacity .35s var(--ease);
}

/* ---------- services matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.matrix .cell{
  padding:clamp(26px,3vw,40px) clamp(20px,2.6vw,40px);border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
}
.matrix .cell:nth-child(2n){border-right:0}
.matrix h3{margin-bottom:10px}
.matrix p{font-size:14.5px;color:var(--muted)}
.matrix ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.matrix li{font-size:13.5px;color:var(--ink-2);padding-left:16px;position:relative}
.matrix li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:1px;background:var(--gold)}
@media (max-width:760px){
  .matrix{grid-template-columns:1fr}
  .matrix .cell{border-right:0}
}

/* ---------- process timeline ---------- */
.process{display:grid;grid-template-columns:repeat(6,1fr);gap:0;border-top:1px solid var(--line);margin-top:8px}
.process .step{padding:26px 18px 30px 0;border-bottom:1px solid var(--line);position:relative}
.process .step::before{
  content:"";position:absolute;left:0;top:0;width:44px;height:1px;background:var(--gold);
}
.process .n{font-family:var(--display);font-size:13px;letter-spacing:.16em;color:var(--gold-text);margin:16px 0 10px}
.process h4{margin-bottom:8px;font-size:14.5px}
.process p{font-size:13px;color:var(--muted)}
@media (max-width:1080px){.process{grid-template-columns:repeat(3,1fr)}}
@media (max-width:680px){
  .process{grid-template-columns:1fr}
  .process .step{padding:22px 0 24px}
}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px}
.tbl th,.tbl td{text-align:left;padding:16px 18px 16px 0;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{
  font-size:11.5px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  border-bottom:1px solid var(--ink);
}
.tbl td:last-child,.tbl th:last-child{text-align:right;padding-right:0}
.tbl .em{font-weight:500;color:var(--ink)}
@media (max-width:640px){
  .tbl{font-size:13.5px}
  .tbl th,.tbl td{padding:13px 10px 13px 0}
}

/* ---------- certifications ---------- */
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.certs .c{background:#fff;padding:clamp(22px,2.6vw,32px);min-height:150px;display:flex;flex-direction:column;justify-content:space-between;gap:16px}
.certs .c b{font-family:var(--display);font-size:19px;font-weight:500;letter-spacing:.02em}
html.zh .certs .c b{font-family:var(--sans);font-weight:600;font-size:17px}
.certs .c span{font-size:12.5px;color:var(--muted);line-height:1.6}
@media (max-width:1000px){.certs{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.certs{grid-template-columns:1fr}}

/* ---------- cases ---------- */
.case{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,64px);
  padding:clamp(34px,4.4vw,64px) 0;border-bottom:1px solid var(--line);align-items:center;
}
.case:nth-child(even) .case__media{order:2}
@media (max-width:860px){
  .case{grid-template-columns:1fr}
  .case:nth-child(even) .case__media{order:0}
}
.case__media{aspect-ratio:16/10;border-radius:var(--image-r);overflow:hidden}
.case__meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.case h3{margin-bottom:14px}
.case p{color:var(--muted);font-size:15px}
.case dl{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.case dt{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.case dd{font-family:var(--display);font-size:clamp(20px,2vw,28px);font-weight:500;margin-top:8px}
html.zh .case dd{font-family:var(--sans);font-weight:600}
@media (max-width:520px){.case dl{grid-template-columns:repeat(2,1fr)}}

/* ---------- dark band ---------- */
.dark{background:var(--dark);color:#fff}
.dark h2,.dark h3,.dark h1{color:#fff}
.dark p{color:var(--dark-muted)}
.dark .eyebrow{color:var(--gold-l)}
.dark .rule{border-color:var(--dark-line)}

/* ---------- CTA ---------- */
.cta{
  position:relative;background:var(--dark);color:#fff;overflow:hidden;
  padding:clamp(64px,8vw,120px) 0;
}
.cta__inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,5vw,72px);align-items:center}
.cta h2{color:#fff;margin:16px 0 20px}
.cta p{color:var(--dark-muted)}
.cta__actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
@media (max-width:900px){.cta__inner{grid-template-columns:1fr;gap:28px}.cta__actions{width:100%}}

/* ---------- forms ---------- */
.form{display:grid;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
html.zh .field label{letter-spacing:.14em}
.field input,.field select,.field textarea{
  background:transparent;border:0;border-bottom:1px solid var(--line);padding:12px 0;
  font-size:15px;border-radius:0;transition:border-color .3s var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-bottom-color:var(--ink)}
.field select{cursor:pointer}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-bottom-color:#B54708}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 26px}
/* 表单分组标题：跨两列，用于把字段分成「您的信息」「您的需求」两组 */
.form-group{grid-column:1 / -1;position:relative;margin:14px 0 2px;padding:18px 0 0 14px;
  border-top:1px solid var(--line);
  font-family:var(--sans);font-size:14px;font-weight:600;letter-spacing:.06em;
  color:var(--ink)}
.form-group::before{content:"";position:absolute;left:0;top:20px;width:3px;height:15px;background:var(--gold)}
.form-group:first-child{border-top:0;padding-top:0;margin-top:0}
.form-group:first-child::before{display:none}
.form-grid .span-2{grid-column:1/-1}
@media (max-width:680px){.form-grid{grid-template-columns:1fr}}
.form-note{font-size:12.5px;color:var(--muted)}
.form-msg{font-size:13.5px;min-height:20px}
.form-msg.err{color:#B54708}
.form-msg.ok{color:#12805C}
.check{display:flex;gap:12px;align-items:flex-start;font-size:13px;color:var(--muted)}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--ink);flex:0 0 16px}

/* dark form variant */
.dark .field input,.dark .field select,.dark .field textarea{
  border-bottom-color:var(--dark-line);color:#fff;
}
.dark .field input::placeholder,.dark .field textarea::placeholder{color:rgba(255,255,255,.34)}
.dark .field label{color:var(--dark-muted)}
.dark .field input:focus,.dark .field select:focus,.dark .field textarea:focus{border-bottom-color:#fff}

/* ---------- contact aside ---------- */
.contact-list{display:flex;flex-direction:column;gap:26px}
.contact-list .it{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:start;padding-bottom:24px;border-bottom:1px solid var(--line)}
.contact-list .it dt{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2)}
.contact-list .it dd{font-size:15.5px;line-height:1.8}
.contact-list .it dd a{border-bottom:1px solid var(--line);transition:border-color .3s var(--ease)}
.contact-list .it dd a:hover{border-color:var(--gold);color:var(--gold-text)}
@media (max-width:520px){.contact-list .it{grid-template-columns:1fr;gap:6px}}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;padding:24px 0;font-size:16.5px;font-weight:500;display:flex;justify-content:space-between;
  gap:20px;align-items:flex-start;list-style:none;
}
html.zh .faq summary{font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:300;color:var(--gold-text);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 0 26px;font-size:15px;color:var(--muted);max-width:80ch}

/* ---------- footer ---------- */
.site-foot{background:var(--dark);color:var(--dark-muted);padding:clamp(56px,6vw,96px) 0 34px;font-size:15.5px;line-height:1.8}
.site-foot .fgrid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:clamp(24px,3vw,48px)}
.site-foot h4{color:#fff;font-size:16px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:20px;font-weight:600;line-height:1.5}
.site-foot ul{display:flex;flex-direction:column;gap:11px}
.site-foot ul a{color:#E9E6DF}
.site-foot a:hover{color:#fff}
.site-foot .brand .mark{color:#fff}
.site-foot .brand .mark-sc{color:#fff}
.site-foot .fnote{max-width:34ch;line-height:1.85;margin-top:16px;color:#D6D3CB}
.site-foot .legal{
  margin-top:clamp(40px,5vw,64px);padding-top:24px;border-top:1px solid var(--dark-line);
  display:flex;flex-wrap:wrap;gap:16px 28px;justify-content:space-between;align-items:center;font-size:14px;
  color:#C9C6BD;
}
.site-foot .legal .pay{display:flex;flex-wrap:wrap;gap:8px}
.site-foot .legal .pay span{border:1px solid rgba(255,255,255,.18);padding:5px 10px;font-size:12px;letter-spacing:.08em;color:#E9E6DF}
@media (max-width:860px){.site-foot .fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.site-foot .fgrid{grid-template-columns:1fr}}

/* ---------- breadcrumb ---------- */
.crumbs{font-size:12px;color:var(--muted);padding:20px 0 0}
.crumbs a:hover{color:var(--ink)}
.crumbs span{color:var(--muted-2)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;z-index:100}
.skip:focus{left:16px;top:12px;background:var(--ink);color:#fff;padding:12px 18px}

/* ---------- misc utility ---------- */
.mt-s{margin-top:14px}.mt-m{margin-top:28px}.mt-l{margin-top:44px}
.mb-m{margin-bottom:28px}
.maxw-60{max-width:60ch}.maxw-48{max-width:48ch}
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 32px}
.kv div{border-top:1px solid var(--line);padding-top:14px}
.kv b{display:block;font-size:14.5px;font-weight:600;margin-bottom:6px}
.kv span{font-size:13.5px;color:var(--muted)}
@media (max-width:560px){.kv{grid-template-columns:1fr}}

/* ---------- brand logo (image) ---------- */
.brand-logo{height:26px;width:auto;display:block}
.brand-logo--foot{height:30px;filter:brightness(0) invert(1)}

/* logo + wordmark beside it */
.brand-text{display:flex;flex-direction:column;gap:4px;padding-left:13px;border-left:1px solid var(--line)}
.brand-text b{font-family:var(--display);font-size:17px;font-weight:600;letter-spacing:.2em;
              line-height:1;text-transform:uppercase;color:var(--ink)}
html.zh .brand-text b{font-family:var(--sans);font-size:15px;font-weight:600;letter-spacing:.24em}
.brand-text span{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);line-height:1}
html.zh .brand-text span{letter-spacing:.14em}

@media (max-width:1180px){
  .brand-text b{font-size:15px;letter-spacing:.16em}
  .brand-text span{font-size:9px}
}
@media (max-width:820px){
  .brand-text{padding-left:11px;gap:3px}
  .brand-text b{font-size:14px;letter-spacing:.14em}
  .brand-text span{display:none}
}
@media (max-width:520px){
  .brand-logo{height:21px}
  .brand-logo--foot{height:24px}
  .brand-text{padding-left:10px}
  .brand-text b{font-size:12.5px;letter-spacing:.12em}
}
@media (max-width:400px){
  .brand-text{display:none}
}

/* ---------- logo walls (partner brands / channels) ---------- */
.logos{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:transparent}
.logos .cell{background:#fff;box-shadow:0 0 0 1px var(--line);display:flex;align-items:center;justify-content:center;padding:clamp(14px,2vw,26px);min-height:106px}
.logos img{max-height:46px;max-width:84%;width:auto;object-fit:contain}
.logos .cell{transition:background .25s var(--ease)}
.logos .cell:hover{background:#FAFAF7}
.logos .cell--text{background:#fff;display:flex;align-items:center;justify-content:center;padding:16px;min-height:106px}
.logos .cell--text b{font-family:var(--display);font-size:16px;font-weight:500;letter-spacing:.02em;text-align:center;line-height:1.3;color:var(--ink-2)}
html.zh .logos .cell--text b{font-family:var(--sans);font-weight:600;font-size:15px}
@media (max-width:1080px){.logos{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:600px){.logos{grid-template-columns:repeat(3,minmax(0,1fr))}.logos .cell{min-height:88px}.logos img{max-height:34px}}

/* ---------- metric trio (verifiable results) ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metrics .m{background:#fff;padding:clamp(28px,3.6vw,50px) clamp(18px,2.2vw,34px)}
.metrics b{display:block;font-family:var(--display);font-size:clamp(36px,4.8vw,66px);font-weight:500;line-height:1;letter-spacing:-.01em}
html.zh .metrics b{font-family:var(--sans);font-weight:600}
.metrics span{display:block;font-size:13px;color:var(--muted);margin-top:14px;line-height:1.6}
.metrics .src{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-top:10px}
@media (max-width:760px){
  .metrics{grid-template-columns:1fr}
  .metrics .m + .m{border-top:1px solid var(--line)}
}

/* ---------- QR contacts ---------- */
.qr-row{display:flex;gap:26px;flex-wrap:wrap}
.qr{display:flex;flex-direction:column;gap:12px;align-items:center}
.qr img{width:136px;height:136px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:12px;object-fit:contain;filter:brightness(1.06) contrast(1.08)}
.qr span{font-size:12px;color:var(--muted);letter-spacing:.06em;text-align:center}
.dark .qr img{background:#fff;border-color:var(--dark-line)}
.dark .qr span{color:#CFCCC3}

/* ---------- quick-inquiry chips ---------- */
.chips{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.chips a{background:#fff;padding:24px 22px;display:flex;flex-direction:column;gap:8px;transition:background .3s var(--ease)}
.chips a:hover{background:var(--surface)}
.chips b{font-size:15px;font-weight:600}
.chips span{font-size:12.5px;color:var(--muted)}
@media (max-width:760px){.chips{grid-template-columns:1fr}}

/* ---------- case highlight ---------- */
.case-win{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,64px);align-items:center}
.case-win__media{aspect-ratio:16/10;border-radius:var(--image-r);overflow:hidden}
@media (max-width:880px){.case-win{grid-template-columns:1fr}}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-text);border:1px solid var(--line);padding:6px 12px;border-radius:99px}

/* ---------- brand-operation proof gallery ---------- */
.operation-proof-section{padding-top:clamp(50px,5vw,80px);padding-bottom:clamp(32px,3vw,48px)}
.operation-proof-section + .sec{padding-top:clamp(44px,4vw,64px)}
.operation-proof-section .operation-proof__head{margin-bottom:clamp(22px,2vw,30px)}
.operation-proof-section .operation-proof__head h2{white-space:nowrap}
.operation-proof{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.4vw,34px);align-items:start}
.operation-proof figure{margin:0;min-width:0}
.operation-proof img{display:block;width:100%;aspect-ratio:9/14;object-fit:cover;object-position:top;border-radius:var(--image-r);box-shadow:0 8px 22px rgba(16,15,13,.08)}
.operation-proof figcaption{padding-top:16px;display:flex;flex-direction:column;gap:5px}
.operation-proof figcaption b{font-size:15px;line-height:1.45;font-weight:600}
.operation-proof figcaption span{font-size:11px;letter-spacing:.06em;line-height:1.45;color:var(--muted)}
@media (max-width:760px){.operation-proof-section .operation-proof__head h2{white-space:normal}.operation-proof{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 16px}.operation-proof figcaption b{font-size:14px}}

/* ---------- quote ---------- */
.pull{font-family:var(--display);font-size:clamp(20px,2.4vw,32px);line-height:1.5;font-weight:400;color:var(--ink);max-width:46ch}
html.zh .pull{font-family:var(--sans);font-weight:500;letter-spacing:0}

/* ---------- 工具类（替代重复的内联样式，2026-09 整理）---------- */
.mt-16{margin-top:16px}
.on-dark{color:var(--dark-muted)}
.on-dark-2{color:var(--dark-muted-2)}
.ml-s{margin-left:8px}
.note-sm{font-size:14px;color:var(--muted);margin-top:6px}
.h3-block{margin:34px 0 12px}
.rule-b{border-bottom:1px solid var(--line)}
.sec--surface{background:var(--surface)}
.feats--tight .row{grid-template-columns:38px 1fr;padding:18px 0}
.feats--tight .row b{font-size:15px}
.lead--tight{max-width:52ch}

/* ---------- 四列卡片（案例页「四件事」）2026-09-11 ---------- */
.cards-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line)}
.cards-4 > div{background:var(--bg);padding:clamp(22px,2.4vw,32px) clamp(18px,2vw,26px)}
.cards-4 .n{font-family:var(--display);font-size:14px;letter-spacing:.16em;
  color:var(--gold-text);display:block;margin-bottom:14px}
.cards-4 h4{font-size:16px;font-weight:600;margin:0 0 10px;line-height:1.4}
.cards-4 p{font-size:13.5px;line-height:1.72;color:var(--muted);margin:0}
@media (max-width:900px){.cards-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.cards-4{grid-template-columns:1fr}}

/* ---------- 标题旁数量徽章（合作品牌页）---------- */
.sec-head h2 .badge{margin-left:14px;vertical-align:middle;font-size:11px}

/* ---------- 能力项图标（首页三项核心能力）2026-09-11 ---------- */
.feats .idx{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.feats .ico{display:block;width:26px;height:26px;color:var(--gold-text);opacity:.9}
@media (max-width:720px){.feats .ico{width:22px;height:22px;margin:10px 0 0}}

/* ---------- 联系页 hero：照片 + 强遮罩（2026-09-11）---------- */
.hero--veil-strong .hero__scrim{
  background:linear-gradient(90deg,rgba(16,15,13,.74) 0%,rgba(16,15,13,.48) 38%,rgba(16,15,13,.08) 100%)}
.hero--veil-strong .hero__img{filter:saturate(1.05) contrast(1.02) brightness(1.24)}
.back-top{position:fixed;right:24px;bottom:24px;z-index:30;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--pink-deep);color:#fff;font:400 30px/1 Arial,sans-serif;box-shadow:0 6px 16px rgba(195,70,112,.25);transition:transform .2s,background .2s}.back-top:hover{background:var(--pink);transform:translateY(-3px)}
.back-top{opacity:0;pointer-events:none;transform:translateY(8px)}.back-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}

/* ===== 手机端适配修复 2026-09-26（桌面版不受影响） ===== */
@media (max-width:680px){
  .site-head .brand-txt i{display:none!important}
  .site-head .brand-txt b{font-size:13px!important;letter-spacing:.08em!important}
  .site-head .brand-logo{height:22px!important;width:auto!important}
}
@media (max-width:1080px){
  /* 无汉堡按钮的页面（404 等）：把顶部导航变成可横向滑动的菜单行，避免手机上完全看不到导航 */
  .site-head .head-inner{flex-wrap:wrap}
  .site-head:not(:has(.burger)) .nav{position:static!important;inset:auto!important;flex-direction:row!important;flex-wrap:nowrap!important;gap:14px!important;padding:0!important;margin:0!important;opacity:1!important;transform:none!important;pointer-events:auto!important;overflow-x:auto!important;background:none!important}
  .site-head:not(:has(.burger)) .nav a{width:auto!important;font-size:12px!important;padding:5px 0!important;border:0!important}
}