/* ============================================================
   777老虎游 · 共享样式表 /assets/site.css
   深夜黑底 + 霓虹金强调 + 玻璃层与实色层并置
   ============================================================ */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[id]{scroll-margin-top:132px}

/* ---------- 变量 ---------- */
:root{
  --ink:#0A0A12;
  --slate:#14141F;
  --slate-2:#1B1B29;
  --glass:rgba(255,255,255,.08);
  --glass-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --gold:#FFC53D;
  --gold-deep:#D99A22;
  --red:#FF3D5A;
  --green:#16C79A;
  --violet:#9B6BFF;
  --white:#EEF2F8;
  --mist:#9AA3B2;

  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;

  --maxw:1240px;
  --rail:88px;
  --radius:18px;
  --radius-sm:12px;
  --shadow-lg:0 24px 60px rgba(0,0,0,.55);
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.85;
  color:var(--white);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 560px at 78% -6%, rgba(155,107,255,.17), transparent 62%),
    radial-gradient(900px 520px at 4% 6%, rgba(255,61,90,.10), transparent 60%),
    radial-gradient(1200px 700px at 50% 106%, rgba(255,197,61,.08), transparent 68%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::after{
  content:"";position:fixed;inset:0;z-index:2;pointer-events:none;
  background-image:repeating-linear-gradient(0deg, rgba(255,255,255,.05) 0 1px, transparent 1px 3px);
  opacity:.20;mix-blend-mode:overlay;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.015em;
  line-height:1.24;
  color:var(--white);
}
h1{font-size:clamp(2.6rem,6vw,4.8rem);letter-spacing:-.03em}
h2{font-size:clamp(1.5rem,3vw,2.2rem)}
h3{font-size:1.25rem}
h4{font-size:1.0625rem;letter-spacing:0}
strong{font-weight:700;color:var(--gold)}
.lede,.prose p,.prose li{max-width:42ch}

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

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:14px;top:-70px;z-index:200;
  padding:10px 20px;border-radius:0 0 12px 12px;
  background:linear-gradient(150deg,#FFD96B,var(--gold));
  color:#1a1206;font-weight:800;font-size:14px;
  transition:top .18s ease;
}
.skip-link:focus{top:0}

/* ---------- 通用容器 ---------- */
.container{
  width:min(100% - 32px, var(--maxw));
  margin-inline:auto;
}
.page-shell{position:relative}
@media (min-width:1100px){
  .page-shell{padding-left:var(--rail)}
  .page-shell::before{
    content:"777";
    position:fixed;left:0;top:0;bottom:0;width:var(--rail);
    display:flex;align-items:flex-start;justify-content:center;
    padding-top:190px;
    writing-mode:vertical-rl;
    font-family:var(--font-display);
    font-weight:900;font-size:22px;letter-spacing:.62em;
    color:rgba(255,197,61,.34);
    background:linear-gradient(180deg, rgba(20,20,31,.55), rgba(10,10,18,.22));
    border-right:1px solid rgba(255,197,61,.14);
    z-index:1;pointer-events:none;
  }
}
.section{padding-block:clamp(48px,8vw,104px)}
.section-head{max-width:760px}
.eyebrow{
  display:inline-block;
  font-size:13px;letter-spacing:.28em;letter-spacing:.28em;
  color:var(--gold);margin-bottom:10px;
}
.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.5rem,3vw,2.2rem);
  line-height:1.24;letter-spacing:-.02em;
}
.lede{color:var(--mist);margin-top:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .22s ease,
             background-color .22s ease, color .22s ease, border-color .22s ease;
}
.btn--sm{min-height:40px;padding:0 16px;font-size:14px}
.btn--gold{
  color:#1a1206;
  background:linear-gradient(150deg,#FFD96B,var(--gold) 46%,var(--gold-deep));
  box-shadow:0 10px 28px rgba(255,197,61,.26), inset 0 1px 0 rgba(255,255,255,.55);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,197,61,.38)}
.btn--ghost{
  color:var(--white);
  background:rgba(255,255,255,.05);
  border-color:var(--line-strong);
}
.btn--ghost:hover{border-color:rgba(255,197,61,.55);color:var(--gold);background:rgba(255,197,61,.08)}
.btn--green{
  color:#04160f;
  background:linear-gradient(150deg,#5BE3BD,var(--green));
  box-shadow:0 10px 26px rgba(22,199,154,.28);
}
.btn--green:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(22,199,154,.36)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg, rgba(10,10,18,.98), rgba(10,10,18,.90));
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,197,61,.22);
  box-shadow:0 18px 40px rgba(0,0,0,.5);
}
.header-top{
  display:flex;align-items:center;
  gap:clamp(12px,2vw,22px);
  max-width:var(--maxw);margin-inline:auto;
  padding:10px clamp(16px,3.2vw,34px);
  border-bottom:1px solid rgba(255,197,61,.16);
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  display:grid;place-items:center;
  width:54px;height:34px;
  font-family:var(--font-display);
  font-weight:900;font-size:15px;letter-spacing:-.05em;
  color:#1a1206;
  background:linear-gradient(158deg,#FFD96B,var(--gold) 48%,var(--gold-deep));
  clip-path:polygon(11% 0,100% 0,89% 100%,0 100%);
  box-shadow:0 0 20px rgba(255,197,61,.42);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:16.5px;letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--mist);margin-top:3px}
.header-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;white-space:nowrap;
  color:#7FF0CD;
  background:rgba(22,199,154,.10);
  border:1px solid rgba(22,199,154,.38);
}
.sym{display:inline-block;font-size:10px;line-height:1;color:var(--gold)}
.header-meta{margin-left:auto;display:flex;align-items:center;gap:12px}
.notice{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--mist);white-space:nowrap;
}
.notice-dot{
  width:7px;height:7px;border-radius:50%;flex:0 0 auto;
  background:var(--red);
  box-shadow:0 0 0 4px rgba(255,61,90,.16), 0 0 12px rgba(255,61,90,.85);
  animation:neon-breathe 3s ease-in-out infinite;
}
@keyframes neon-breathe{0%,100%{opacity:1}50%{opacity:.42}}
.lang-chip{
  padding:4px 10px;border-radius:8px;
  font-size:12px;letter-spacing:.08em;
  color:var(--white);background:var(--glass);border:1px solid var(--line-strong);
}
.header-nav-row{
  position:relative;
  display:flex;align-items:stretch;justify-content:space-between;gap:10px;
  max-width:var(--maxw);margin-inline:auto;
  padding-inline:clamp(16px,3.2vw,34px);
}
.primary-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:stretch;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:16px clamp(10px,1.4vw,18px);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  color:var(--mist);white-space:nowrap;
  transition:color .2s ease, background-color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14%;right:14%;bottom:7px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--gold-deep),var(--gold));
  opacity:0;transform:scaleX(.4);transform-origin:50% 50%;
  transition:opacity .2s ease, transform .22s ease;
  box-shadow:0 0 12px rgba(255,197,61,.75);
}
.nav-link:hover{color:var(--white);background:rgba(255,255,255,.045)}
.nav-link:hover::after{opacity:.45;transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold)}
.nav-link[aria-current="page"]::after{opacity:1;transform:scaleX(1)}
.nav-lever{
  display:none;align-items:center;gap:10px;align-self:center;
  margin-left:12px;padding:8px 14px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,197,61,.38);
  background:linear-gradient(150deg, rgba(255,197,61,.12), rgba(20,20,31,.9));
  color:var(--gold);
  font-size:13px;font-weight:700;letter-spacing:.16em;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-lever:hover{border-color:var(--gold);box-shadow:0 0 22px rgba(255,197,61,.26)}
.lever-arm{
  position:relative;width:4px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,var(--gold),var(--gold-deep));
  transform-origin:50% 100%;
  transition:transform .26s ease;
}
.lever-arm::after{
  content:"";position:absolute;left:50%;top:-5px;
  width:10px;height:10px;margin-left:-5px;border-radius:50%;
  background:var(--red);box-shadow:0 0 10px rgba(255,61,90,.8);
}
.nav-lever[aria-expanded="true"] .lever-arm{transform:rotate(26deg)}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--red) 45%,var(--violet));
  z-index:120;pointer-events:none;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,120px);
  border-top:1px solid rgba(255,197,61,.24);
  background:
    radial-gradient(820px 340px at 8% 0%, rgba(155,107,255,.16), transparent 62%),
    radial-gradient(680px 320px at 92% 12%, rgba(255,61,90,.12), transparent 64%),
    radial-gradient(760px 380px at 50% 108%, rgba(255,197,61,.09), transparent 70%),
    #07070D;
  color:var(--mist);
  font-size:14.5px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent, rgba(255,197,61,.85), rgba(255,61,90,.5), transparent);
}
.footer-grid{
  max-width:var(--maxw);margin-inline:auto;
  padding:clamp(40px,6vw,72px) clamp(16px,3.2vw,34px) clamp(24px,3vw,36px);
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.35fr;
  gap:clamp(26px,4vw,56px);
}
.brand--footer .brand-mark{width:48px;height:32px;font-size:14px}
.footer-intro{margin-top:14px;line-height:1.8;max-width:34ch;font-size:14px}
.footer-icp{
  margin-top:12px;font-size:13px;letter-spacing:.04em;
  color:rgba(154,163,178,.78);
}
.footer-col__title{
  font-family:var(--font-body);
  font-size:13px;font-weight:800;letter-spacing:.22em;
  color:var(--gold);margin-bottom:14px;
}
.footer-links li + li{margin-top:9px}
.footer-links a{display:inline-block;transition:color .18s ease, transform .18s ease}
.footer-links a:hover{color:var(--gold);transform:translateX(4px)}
.footer-contact li{display:flex;gap:10px;align-items:baseline;line-height:1.7}
.footer-contact li + li{margin-top:8px}
.footer-contact__key{
  flex:0 0 auto;font-size:12px;letter-spacing:.1em;color:var(--gold);
}
.footer-note{margin-top:14px;font-size:13px;line-height:1.75;color:rgba(154,163,178,.85);max-width:36ch}
.footer-base{
  max-width:var(--maxw);margin-inline:auto;
  padding:18px clamp(16px,3.2vw,34px) 34px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px 26px;
  align-items:center;justify-content:space-between;
  font-size:13px;
}
.footer-legal{display:flex;flex-wrap:wrap;gap:10px 20px}
.footer-legal a{transition:color .18s ease}
.footer-legal a:hover{color:var(--gold)}
.footer-service{color:rgba(154,163,178,.72)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:18px;bottom:22px;z-index:75;
  width:48px;height:48px;border-radius:14px;
  display:grid;place-items:center;
  font-size:18px;font-weight:800;
  color:#1a1206;
  background:linear-gradient(150deg,#FFD96B,var(--gold-deep));
  box-shadow:0 12px 30px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.5);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease, transform .24s ease, visibility .24s;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--mist)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__list li + li::before{
  content:"/";margin-right:8px;color:rgba(255,197,61,.6);
}
.breadcrumb a:hover{color:var(--gold)}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,26px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--8-4{grid-template-columns:8fr 4fr}
.grid--9-3{grid-template-columns:9fr 3fr}
@media (max-width:1100px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--4,
  .grid--7-5,.grid--8-4,.grid--9-3{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 卡片 ---------- */
.card{
  position:relative;
  padding:clamp(18px,2.6vw,26px);
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(165deg, rgba(27,27,41,.96), rgba(14,14,22,.96));
  box-shadow:0 16px 40px rgba(0,0,0,.35);
}
.card--glass{
  background:linear-gradient(160deg, var(--glass), var(--glass-2));
  border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 20px 46px rgba(0,0,0,.4);
}
.card--gold{
  border-color:rgba(255,197,61,.42);
  box-shadow:0 0 0 1px rgba(255,197,61,.08), 0 22px 52px rgba(0,0,0,.5);
}
.card__meta{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--mist);letter-spacing:.04em;
  margin-bottom:10px;
}
.card__title{
  font-family:var(--font-display);
  font-size:1.125rem;font-weight:900;line-height:1.35;
  color:var(--white);margin-bottom:8px;
}
.card__text{font-size:15px;color:var(--mist);line-height:1.8}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;
  font-size:13px;line-height:1.6;
  color:var(--mist);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);
}
.tag--gold{color:var(--gold);background:rgba(255,197,61,.10);border-color:rgba(255,197,61,.45)}
.tag--red{color:#FF8FA0;background:rgba(255,61,90,.10);border-color:rgba(255,61,90,.45)}
.tag--green{color:#5CE0BE;background:rgba(22,199,154,.10);border-color:rgba(22,199,154,.45)}
.tag--violet{color:#C3ACFF;background:rgba(155,107,255,.12);border-color:rgba(155,107,255,.45)}

/* ---------- 转轮筛选条 ---------- */
.chip-row{
  display:flex;gap:10px;
  overflow-x:auto;
  padding:6px 2px 14px;
  scroll-snap-type:x proximity;
  scrollbar-width:none;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:9px 16px;border-radius:999px;
  font-size:14px;white-space:nowrap;
  color:var(--mist);
  background:rgba(20,20,31,.85);
  border:1px solid var(--line-strong);
  scroll-snap-align:center;
  transition:color .22s ease, background-color .22s ease,
             border-color .22s ease, transform .22s ease, box-shadow .22s ease;
}
.chip:hover{color:var(--white);border-color:rgba(255,197,61,.42)}
.chip.is-active,.chip[aria-pressed="true"]{
  color:#04160f;font-weight:700;
  background:linear-gradient(150deg,#5BE3BD,var(--green));
  border-color:transparent;
  transform:scale(1.06);
  box-shadow:0 10px 26px rgba(22,199,154,.3);
}

/* ---------- 折叠面板 ---------- */
.panel{
  border:1px solid rgba(155,107,255,.28);
  border-radius:14px;
  background:rgba(20,20,31,.72);
  overflow:hidden;
  transition:border-color .22s ease;
}
.panel + .panel{margin-top:12px}
.panel[data-open]{border-color:rgba(155,107,255,.6)}
.panel__head{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;
  text-align:left;
  font-family:var(--font-display);
  font-size:1rem;font-weight:800;color:var(--white);
  line-height:1.5;
}
.panel__head:hover{color:var(--gold)}
.panel__sign{
  flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;
  font-size:15px;line-height:1;
  color:var(--violet);
  border:1px solid rgba(155,107,255,.45);
  transition:transform .24s ease, color .24s ease, border-color .24s ease;
}
.panel[data-open] .panel__sign{transform:rotate(45deg);color:var(--gold);border-color:rgba(255,197,61,.6)}
.panel__body{
  display:none;
  padding:0 18px 18px;
  font-size:15px;color:var(--mist);line-height:1.85;
}
.panel[data-open] .panel__body{display:block;padding-top:14px;border-top:1px solid rgba(155,107,255,.18)}

/* ---------- 时间线 ---------- */
.ledger{position:relative;padding-left:26px}
.ledger::before{
  content:"";position:absolute;left:6px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg, rgba(255,197,61,.7), rgba(155,107,255,.35), transparent);
}
.ledger__item{position:relative;padding-bottom:26px}
.ledger__item:last-child{padding-bottom:0}
.ledger__item::before{
  content:"";position:absolute;left:-24px;top:9px;
  width:9px;height:9px;border-radius:50%;
  background:var(--ink);
  border:2px solid var(--gold);
  box-shadow:0 0 10px rgba(255,197,61,.7);
}
.ledger__date{
  display:block;
  font-size:13px;letter-spacing:.08em;color:var(--gold);margin-bottom:4px;
}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius);
  aspect-ratio:16/9;
  background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid var(--line);
}
.media-frame > img,
.media-frame > picture,
.media-frame > video,
.media-frame > picture > img{
  width:100%;height:100%;object-fit:cover;display:block;
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg, transparent 45%, rgba(10,10,18,.62));
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--phone{aspect-ratio:9/19.5;max-width:280px}

/* ---------- 进入视口动画 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .22s ease-out, transform .22s ease-out;
}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (max-width:1040px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}

/* ---------- 移动端导航 ---------- */
@media (max-width:960px){
  .header-top{flex-wrap:wrap;row-gap:8px}
  .header-badge{order:3;flex:1 1 100%;justify-content:center}
  .header-meta{margin-left:auto}
  .notice{font-size:12.5px}
  .nav-lever{display:inline-flex}
  .primary-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;
    padding:10px clamp(16px,3.2vw,34px) 18px;
    background:linear-gradient(180deg, rgba(16,16,26,.99), rgba(10,10,18,.99));
    border-bottom:1px solid rgba(255,197,61,.3);
    box-shadow:0 26px 54px rgba(0,0,0,.66);
    max-height:calc(100vh - 96px);
    overflow-y:auto;
  }
  .primary-nav[data-open]{display:block}
  .nav-list{flex-direction:column;gap:0}
  .nav-link{
    width:100%;
    padding:14px 4px 14px 18px;
    font-size:16px;
    justify-content:flex-start;
    border-bottom:1px dashed rgba(255,255,255,.08);
    background:none;
  }
  .nav-link::before{
    content:"";position:absolute;left:0;top:50%;
    width:3px;height:22px;border-radius:2px;
    background:linear-gradient(180deg,var(--gold),var(--red));
    transform:translateY(-50%) scaleY(0);
    transform-origin:50% 50%;
    transition:transform .22s ease;
  }
  .nav-link:hover::before,
  .nav-link[aria-current="page"]::before{transform:translateY(-50%) scaleY(1)}
  .nav-link::after{left:18px;right:auto;width:42px;bottom:9px}
  .nav-link:hover{background:rgba(255,255,255,.04)}
}

@media (max-width:560px){
  body{font-size:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .lang-chip{display:none}
  .to-top{right:14px;bottom:16px}
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .to-top{transform:none}
  .notice-dot{opacity:1}
}