/* ==========================================================================
   VG棋牌 · 全站共享样式 /assets/site.css
   暗场底 + 霓虹强调 + 切角面板 + 数据叙事排版
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --bg:#0B1224;
  --panel:#111A33;
  --panel-deep:#0E172C;
  --ink:#E6EDF7;
  --ink-dim:#9AA9C2;
  --line:#24304D;

  --cyan:#22D3EE;
  --gold:#F5C542;
  --violet:#A78BFA;

  --newbie:#34D399;
  --classic:#60A5FA;
  --arena:#F87171;
  --casual:#FB923C;
  --ret:#FBBF24;

  --font-head:"Noto Sans SC Condensed","HarmonyOS Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
  --font-mono:"JetBrains Mono","SF Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --wrap:1180px;
  --cut:16px;
  --radius:12px;
  --dur:.24s;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. 重置 ---------- */
*,
*::before,
*::after{ box-sizing:border-box; }

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(620px 420px at 8% -6%, rgba(34,211,238,.13), transparent 70%),
    radial-gradient(720px 520px at 92% 4%, rgba(167,139,250,.11), transparent 72%),
    radial-gradient(900px 620px at 50% 108%, rgba(245,197,66,.06), transparent 70%);
}

main,
.site-header,
.site-footer{ position:relative; z-index:1; }

img,
svg{ display:block; max-width:100%; }

ul,
ol{ margin:0; padding:0; list-style:none; }

button{ font:inherit; color:inherit; }

a{ color:var(--cyan); text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset:3px; }

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 3. 排版 ---------- */
h1,
h2,
h3,
h4{
  font-family:var(--font-head);
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.18;
  margin:0 0 .55em;
  color:var(--ink);
}

h1{ font-size:clamp(30px,5.2vw,54px); }
h2{ font-size:clamp(23px,3.3vw,34px); }
h3{ font-size:clamp(18px,2.1vw,23px); }
h4{ font-size:17px; }

p{ margin:0 0 1em; }
p:last-child{ margin-bottom:0; }

.mono,
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.serif-quote{
  font-family:var(--font-serif);
  font-size:clamp(18px,2.2vw,22px);
  line-height:1.7;
  color:var(--ink);
  border-left:2px solid var(--gold);
  padding-left:18px;
  margin:0 0 1em;
}

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

/* ---------- 4. 容器与节奏 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,32px);
}

.section{ padding:clamp(40px,6vw,72px) 0; }
.section--tight{ padding:clamp(24px,3.6vw,40px) 0; }

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px 32px;
  margin-bottom:28px;
}

.section-head h2{ margin:0; }

.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
  margin:0 0 10px;
}

.lede{
  color:var(--ink-dim);
  font-size:clamp(15.5px,1.6vw,17px);
  max-width:64ch;
}

/* ---------- 5. 网格 ---------- */
.grid{ display:grid; gap:clamp(14px,2vw,22px); }
.grid-2{ grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); }
.grid-3{ grid-template-columns:repeat(auto-fit,minmax(238px,1fr)); }
.grid-4{ grid-template-columns:repeat(auto-fit,minmax(196px,1fr)); }

/* ---------- 6. 切角面板 ---------- */
.cut-panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:clamp(18px,2.6vw,26px);
  clip-path:polygon(
    0 0,
    calc(100% - var(--cut)) 0,
    100% var(--cut),
    100% 100%,
    var(--cut) 100%,
    0 calc(100% - var(--cut))
  );
}

.panel-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}

.panel-title{
  font-family:var(--font-head);
  font-size:clamp(17px,2vw,20px);
  letter-spacing:.03em;
  margin:0;
}

/* ---------- 7. 状态标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.08em;
  line-height:1;
  padding:5px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--ink-dim);
  white-space:nowrap;
}

.tag::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:currentColor;
  box-shadow:0 0 8px currentColor;
  flex:0 0 6px;
}

.tag--newbie{ color:var(--newbie); border-color:rgba(52,211,153,.42); background:rgba(52,211,153,.1); }
.tag--classic{ color:var(--classic); border-color:rgba(96,165,250,.42); background:rgba(96,165,250,.1); }
.tag--arena{ color:var(--arena); border-color:rgba(248,113,113,.42); background:rgba(248,113,113,.1); }
.tag--casual{ color:var(--casual); border-color:rgba(251,146,60,.42); background:rgba(251,146,60,.1); }
.tag--return{ color:var(--ret); border-color:rgba(251,191,36,.42); background:rgba(251,191,36,.1); }
.tag--violet{ color:var(--violet); border-color:rgba(167,139,250,.42); background:rgba(167,139,250,.1); }
.tag--cyan{ color:var(--cyan); border-color:rgba(34,211,238,.42); background:rgba(34,211,238,.1); }

/* ---------- 8. 统计 ---------- */
.stat{ display:block; }
.stat-num{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.1;
  color:var(--cyan);
  letter-spacing:-.01em;
}
.stat-label{
  display:block;
  margin-top:6px;
  font-size:13.5px;
  color:var(--ink-dim);
}

/* ---------- 9. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-head);
  font-size:15px;
  letter-spacing:.06em;
  line-height:1;
  padding:13px 22px;
  border-radius:999px;
  border:1px solid transparent;
  background:transparent;
  color:var(--ink);
  cursor:pointer;
  transition:transform var(--dur) var(--ease),
             background var(--dur) var(--ease),
             border-color var(--dur) var(--ease),
             color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}

.btn:hover{ text-decoration:none; transform:translateY(-1px); }
.btn:active{ transform:translateY(0); }

.btn-primary{
  background:var(--cyan);
  color:#04121C;
  box-shadow:0 10px 30px -14px rgba(34,211,238,.9);
}
.btn-primary:hover{ background:#5BE3F5; }

.btn-ghost{
  border-color:var(--line);
  background:rgba(255,255,255,.02);
  color:var(--ink);
}
.btn-ghost:hover{ border-color:var(--cyan); color:var(--cyan); }

.btn-gold{
  background:var(--gold);
  color:#1B1400;
  box-shadow:0 10px 30px -14px rgba(245,197,66,.9);
}
.btn-gold:hover{ background:#FFD661; }

.btn-sm{ padding:10px 17px; font-size:13.5px; }

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{ margin:0 0 22px; }

.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--ink-dim);
}

.breadcrumb-list li{ display:flex; align-items:center; gap:8px; }

.breadcrumb-list li + li::before{
  content:"/";
  color:var(--line);
}

.breadcrumb-link{ color:var(--ink-dim); }
.breadcrumb-link:hover{ color:var(--cyan); text-decoration:none; }
.breadcrumb [aria-current="page"]{ color:var(--ink); }

/* ---------- 11. 标签页 ---------- */
.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:22px;
}

.tab{
  font-family:var(--font-head);
  font-size:14px;
  letter-spacing:.06em;
  line-height:1;
  padding:10px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(17,26,51,.7);
  color:var(--ink-dim);
  cursor:pointer;
  transition:color var(--dur) var(--ease),
             background var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}

.tab:hover{ color:var(--ink); border-color:rgba(34,211,238,.5); }

.tab[aria-selected="true"],
.tab.is-active{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#04121C;
}

.tab-panel[hidden]{ display:none; }
.tab-panel.is-active{ animation:fade-rise .28s var(--ease) both; }

/* ---------- 12. 时间轴 ---------- */
.timeline{ position:relative; }

.timeline-track{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding:30px 4px 20px;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
  scrollbar-color:var(--line) transparent;
}

.timeline-track::-webkit-scrollbar{ height:6px; }
.timeline-track::-webkit-scrollbar-thumb{ background:var(--line); border-radius:3px; }

.timeline-item{
  position:relative;
  flex:0 0 clamp(206px,25vw,258px);
  scroll-snap-align:start;
  padding-top:40px;
}

.timeline-item::before{
  content:"";
  position:absolute;
  top:38px;
  left:14px;
  right:-18px;
  height:1px;
  background:linear-gradient(90deg, var(--line), rgba(36,48,77,0));
}

.timeline-item:last-child::before{ display:none; }

.timeline-dot{
  position:absolute;
  top:32px;
  left:0;
  width:13px;
  height:13px;
  border-radius:50%;
  background:var(--ret);
  box-shadow:0 0 0 4px rgba(251,191,36,.14), 0 0 18px rgba(251,191,36,.65);
}

.timeline-date{
  display:block;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--ret);
}

.timeline-body{
  margin-top:10px;
  background:var(--panel);
  border:1px solid var(--line);
  padding:14px 15px;
  font-size:14.5px;
  color:var(--ink-dim);
}

.timeline-body strong{ color:var(--ink); }

/* ---------- 13. 图片容器 ---------- */
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:linear-gradient(150deg,#152040,#0C1428 58%,#0B1224);
  border:1px solid var(--line);
  clip-path:polygon(
    0 0,
    calc(100% - 22px) 0,
    100% 22px,
    100% 100%,
    0 100%
  );
}

.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(
    115deg,
    rgba(34,211,238,.07) 0 2px,
    transparent 2px 15px
  );
}

.img-frame > img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}

.img-frame--wide{ aspect-ratio:21 / 9; }
.img-frame--tall{ aspect-ratio:4 / 5; }
.img-frame--square{ aspect-ratio:1 / 1; }

.img-cap{
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--ink-dim);
}

/* ---------- 14. 滚动显现 ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease), transform .5s var(--ease);
}

.has-js [data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* ---------- 15. 跳转链接 ---------- */
.skip-link{
  position:absolute;
  left:12px;
  top:-64px;
  z-index:200;
  padding:10px 18px;
  border-radius:0 0 10px 10px;
  background:var(--cyan);
  color:#04121C;
  font-size:14px;
  font-weight:700;
  transition:top var(--dur) var(--ease);
}

.skip-link:focus{ top:0; text-decoration:none; }

/* ---------- 16. 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg, rgba(11,18,36,.95), rgba(11,18,36,.82));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:box-shadow var(--dur) var(--ease);
}

.site-header.is-scrolled{
  box-shadow:0 20px 44px -28px rgba(0,0,0,.95), 0 1px 0 rgba(34,211,238,.18);
}

.header-rail{ padding:12px 0; }

.header-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,32px);
  display:flex;
  align-items:center;
  gap:16px;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  margin-right:auto;
  color:var(--ink);
  text-decoration:none;
}

.brand:hover{ text-decoration:none; }

.brand-mark{
  position:relative;
  flex:0 0 34px;
  width:34px;
  height:34px;
  background:linear-gradient(140deg, var(--cyan), var(--violet));
  clip-path:polygon(0 0, 68% 0, 100% 32%, 100% 100%, 32% 100%, 0 68%);
  box-shadow:0 0 24px -8px rgba(34,211,238,.95);
}

.brand-mark > span{
  position:absolute;
  inset:7px;
  display:block;
  background:var(--bg);
  clip-path:polygon(0 0, 68% 0, 100% 32%, 100% 100%, 32% 100%, 0 68%);
}

.brand-text{ display:flex; flex-direction:column; gap:2px; }

.brand-text strong{
  font-family:var(--font-head);
  font-size:20px;
  font-weight:800;
  letter-spacing:.08em;
  line-height:1.1;
  color:var(--ink);
}

.brand-text em{
  font-style:normal;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--ink-dim);
  white-space:nowrap;
}

/* 导航胶囊 */
.nav-capsule{
  padding:5px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(17,26,51,.86);
  box-shadow:inset 0 0 26px rgba(34,211,238,.07);
}

.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}

.nav-item{ display:block; }

.nav-link{
  display:block;
  padding:9px 14px;
  border-radius:999px;
  font-family:var(--font-head);
  font-size:14.5px;
  letter-spacing:.04em;
  color:var(--ink-dim);
  white-space:nowrap;
  text-decoration:none;
  transition:color var(--dur) var(--ease),
             background var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}

.nav-link:hover{
  color:var(--ink);
  background:rgba(34,211,238,.1);
  text-decoration:none;
}

.nav-link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(34,211,238,.14);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.38);
}

/* 头部右侧 */
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.nav-toggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(17,26,51,.86);
  cursor:pointer;
  transition:border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.nav-toggle:hover{ border-color:var(--cyan); }

.nav-toggle-bar{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

/* 第二栏快捷条 */
.quickbar{
  background:linear-gradient(90deg, rgba(17,26,51,.9), rgba(11,18,36,.7));
  border-top:1px solid var(--line);
}

.quickbar-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:8px clamp(18px,4vw,32px);
  display:flex;
  align-items:center;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
}

.quickbar-inner::-webkit-scrollbar{ display:none; }

.quickbar-label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
  padding-right:4px;
  border-right:1px solid var(--line);
  margin-right:4px;
  flex:0 0 auto;
}

.quickbar-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  flex:0 0 auto;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(34,211,238,.06);
  color:var(--ink);
  font-size:13.5px;
  line-height:1;
  white-space:nowrap;
  text-decoration:none;
  transition:border-color var(--dur) var(--ease),
             background var(--dur) var(--ease),
             color var(--dur) var(--ease);
}

.quickbar-chip::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);
  flex:0 0 6px;
}

.quickbar-chip:hover{
  border-color:rgba(34,211,238,.55);
  background:rgba(34,211,238,.15);
  text-decoration:none;
}

.quickbar-chip--gold::before{
  background:var(--gold);
  box-shadow:0 0 10px var(--gold);
}

.quickbar-chip--gold:hover{
  border-color:rgba(245,197,66,.55);
  background:rgba(245,197,66,.14);
}

/* 滚动进度条 */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  overflow:hidden;
  background:transparent;
  pointer-events:none;
}

.scroll-progress > span{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--gold));
}

/* ---------- 17. 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,86px);
  background:linear-gradient(180deg,#0B1224 0%, #0A1020 58%, #080D1A 100%);
  border-top:1px solid var(--line);
}

.footer-rail{
  height:6px;
  background:repeating-linear-gradient(
    100deg,
    rgba(34,211,238,.55) 0 2px,
    transparent 2px 12px
  );
  opacity:.45;
}

.footer-inner{
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(38px,5vw,58px) clamp(18px,4vw,32px) 26px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3, minmax(140px,1fr));
  gap:34px 28px;
}

.footer-brand-line{
  font-family:var(--font-head);
  font-size:20px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--ink);
  margin:0 0 10px;
}

.footer-desc{
  color:var(--ink-dim);
  font-size:14px;
  line-height:1.7;
  max-width:36ch;
  margin:0;
}

.footer-col-title{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:400;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
  margin:0 0 14px;
}

.footer-links{
  display:grid;
  gap:10px;
}

.footer-link{
  position:relative;
  display:inline-block;
  font-size:14.5px;
  color:var(--ink-dim);
  text-decoration:none;
  transition:color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.footer-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:0;
  height:1px;
  background:var(--cyan);
  transform:translateY(-50%);
  transition:width var(--dur) var(--ease);
}

.footer-link:hover{
  color:var(--cyan);
  padding-left:14px;
  text-decoration:none;
}

.footer-link:hover::before{ width:9px; }

.footer-contact{
  margin-top:clamp(30px,4vw,44px);
  padding-top:26px;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(230px,1fr));
  gap:18px 30px;
}

.footer-contact-item{ min-width:0; }

.footer-contact-label{
  display:block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-dim);
  margin-bottom:5px;
}

.footer-contact-value{
  display:block;
  font-size:14.5px;
  color:var(--ink);
  line-height:1.6;
  word-break:break-word;
}

.footer-note{
  grid-column:1 / -1;
  margin:6px 0 0;
  max-width:78ch;
  font-size:13px;
  line-height:1.7;
  color:var(--ink-dim);
}

.footer-bottom{
  margin-top:28px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 22px;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--ink-dim);
}

.footer-legal,
.footer-copy{ margin:0; }

.footer-copy span{ color:var(--ret); }

/* ---------- 18. 动画 ---------- */
@keyframes fade-rise{
  from{ opacity:0; transform:translateY(8px); }
  to{ opacity:1; transform:none; }
}

@keyframes nav-drop{
  from{ opacity:0; transform:translateY(-6px); }
  to{ opacity:1; transform:none; }
}

@media (prefers-reduced-motion: no-preference){
  html{ scroll-behavior:smooth; }
}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{ padding:9px 11px; font-size:14px; }
  .brand-text em{ letter-spacing:.1em; }
}

@media (max-width:1023px){
  .header-inner{ flex-wrap:wrap; row-gap:10px; }

  .nav-capsule{
    order:3;
    flex:0 0 100%;
    width:100%;
    display:none;
    border-radius:16px;
    padding:8px;
    box-shadow:inset 0 0 26px rgba(34,211,238,.06);
  }

  .nav-capsule[data-open]{
    display:block;
    animation:nav-drop .24s var(--ease) both;
  }

  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:3px;
  }

  .nav-link{
    border-radius:10px;
    padding:13px 14px;
    font-size:15px;
  }

  .nav-toggle{ display:inline-flex; }

  .footer-grid{ grid-template-columns:repeat(2, minmax(0,1fr)); }
  .footer-brand{ grid-column:1 / -1; }
}

@media (max-width:720px){
  .brand-text em{ display:none; }
  .brand-text strong{ font-size:18px; }
  .brand-mark{ flex-basis:30px; width:30px; height:30px; }

  .section-head{ margin-bottom:22px; }

  .timeline-item::before{ right:-14px; }
}

@media (max-width:560px){
  .header-cta{ display:none; }

  .footer-grid{ grid-template-columns:minmax(0,1fr); }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }

  .quickbar-label{ display:none; }
}

/* ---------- 20. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }

  html{ scroll-behavior:auto; }

  .has-js [data-reveal]{
    opacity:1;
    transform:none;
  }
}