/* =========================================================
   BOWAN赛场 · 共享样式表 /assets/site.css
   夜赛城市框架：左侧脉搏轨 · 顶部进度线 · 切角面板
   ========================================================= */

/* ---------- 0. 设计变量 ---------- */
:root{
  --ink:#07090C;
  --panel:#0E1726;
  --jade:#0B3A34;
  --wine:#6E1F3A;
  --pitch:#35F0A0;
  --alert:#FF7A2F;
  --paper:#F4F7F5;
  --muted:#8794A3;
  --neon:#4FD8FF;
  --gold:#E8C46A;

  --soft:rgba(244,247,245,.10);
  --soft-2:rgba(244,247,245,.16);
  --halo:rgba(53,240,160,.24);
  --halo-strong:rgba(53,240,160,.55);
  --halo-faint:rgba(53,240,160,.12);

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-geo:"Inter","Helvetica Neue",Arial,"PingFang SC","Noto Sans SC",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","IBM Plex Mono",SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --rail:88px;
  --bar-h:76px;
  --gap:clamp(16px,2.2vw,32px);
  --cut:14px;
  --shell:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:320ms;
  --focus:var(--neon);
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--bar-h) + 24px);
}
body{
  margin:0;
  padding-left:var(--rail);
  padding-top:var(--bar-h);
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(680px 420px at 78% -6%, rgba(53,240,160,.09), transparent 70%),
    radial-gradient(560px 380px at 8% 96%, rgba(110,31,58,.18), transparent 72%);
}
img,svg,video{max-width:100%;height:auto}
h1,h2,h3,h4,p,figure,ul,ol,dl{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--neon);text-decoration:none}
a:hover{color:var(--pitch)}
button{font:inherit;color:inherit}
main,#main-content{display:block;position:relative;z-index:1}
::selection{background:var(--pitch);color:#04140E}

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

.visually-hidden{
  position:absolute!important;
  width:1px;height:1px;
  margin:-1px;padding:0;border:0;
  clip:rect(0 0 0 0);clip-path:inset(50%);
  overflow:hidden;white-space:nowrap;
}

/* ---------- 2. 排版 ---------- */
.display{
  font-family:var(--font-geo);
  font-weight:250;
  font-size:clamp(2.75rem,7vw,6rem);
  line-height:.98;
  letter-spacing:-.02em;
  color:var(--paper);
}
.display--sm{font-size:clamp(2.1rem,4.6vw,3.6rem)}
.h2{
  font-family:var(--font-geo);
  font-weight:750;
  font-size:clamp(1.5rem,3vw,2.25rem);
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--paper);
}
.h3{
  font-family:var(--font-geo);
  font-weight:700;
  font-size:1.125rem;
  line-height:1.4;
  color:var(--paper);
}
.lede{
  font-size:clamp(1.02rem,1.5vw,1.22rem);
  line-height:1.7;
  color:#C9D3D0;
  max-width:62ch;
}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--paper);
}
.muted{color:var(--muted)}
.index-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--pitch);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border:1px solid var(--halo);
  border-radius:999px;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--pitch);
  white-space:nowrap;
}
.tag--alert{color:var(--alert);border-color:rgba(255,122,47,.45)}
.tag--gold{color:var(--gold);border-color:rgba(232,196,106,.45)}
.tag--muted{color:var(--muted);border-color:var(--soft-2)}

/* ---------- 3. 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,48px);
}
.section{padding-block:clamp(56px,9vw,96px)}
.section--tight{padding-block:clamp(32px,5vw,56px)}
.stack{display:grid;gap:16px}
.stack--lg{gap:28px}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:14px;
  margin-bottom:clamp(20px,3vw,34px);
}
.section-head__no{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--pitch);
}

/* ---------- 4. 装饰语言：22 度斜线 ---------- */
.slash-tick{
  display:inline-block;
  width:18px;height:2px;
  background:var(--pitch);
  transform:rotate(-22deg);
  vertical-align:middle;
}
.edge-slash{
  height:12px;
  background-image:repeating-linear-gradient(112deg,rgba(53,240,160,.5) 0 1px,transparent 1px 10px);
  opacity:.65;
}
.divider{
  height:1px;border:0;
  background:linear-gradient(90deg,var(--halo-strong),rgba(53,240,160,0) 68%);
}

/* ---------- 5. 面板 / 卡片 / Bento ---------- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--halo);
  padding:clamp(20px,2.6vw,32px);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
}
.panel--cut-bl{
  clip-path:polygon(0 0,100% 0,100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.panel--focus{
  border-color:var(--halo-strong);
  background:linear-gradient(155deg,#0E1726 0%,#123028 55%,#0B3A34 100%);
}
.zone-jade{background:linear-gradient(180deg,rgba(11,58,52,.9) 0%,rgba(7,9,12,0) 100%)}
.zone-wine{background:linear-gradient(180deg,rgba(110,31,58,.5) 0%,rgba(7,9,12,0) 100%)}

.card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:clamp(18px,2.2vw,26px);
  background:var(--panel);
  border:1px solid var(--soft);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--halo-strong);background:#111C2D}
.card__title{font-family:var(--font-geo);font-weight:700;font-size:1.06rem;line-height:1.45;color:var(--paper)}
.card__meta{font-size:13px;color:var(--muted);letter-spacing:.02em}

.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.bento>*{grid-column:span 4}
.bento__focus{grid-column:span 6;grid-row:span 2}
.bento__wide{grid-column:span 8}
.bento__half{grid-column:span 6}
.bento__third{grid-column:span 4}
.bento__quarter{grid-column:span 3}
.bento__full{grid-column:1/-1}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 22px;
  border:1px solid transparent;
  background:transparent;
  font-family:var(--font-geo);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--paper);
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn--primary{background:var(--pitch);color:#04140E}
.btn--primary:hover{background:#5CF8B4;color:#04140E;box-shadow:0 0 0 3px rgba(53,240,160,.18)}
.btn--ghost{border-color:var(--soft-2);color:var(--paper)}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn--alert{border-color:rgba(255,122,47,.6);color:var(--alert)}
.btn--alert:hover{background:rgba(255,122,47,.12);color:#FFA467}
.btn--sm{padding:9px 16px;font-size:14px}

/* ---------- 7. 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--neon)}
.crumbs__sep{color:rgba(135,148,163,.45)}
.crumbs [aria-current="page"]{color:var(--pitch)}

/* ---------- 8. 步骤路径（技能树隐喻） ---------- */
.steps{display:grid;gap:14px}
.step{
  position:relative;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:16px;
  padding:18px 22px;
  background:var(--panel);
  border:1px solid var(--halo);
  border-left:2px solid var(--pitch);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,0 100%);
}
.step__no{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:15px;
  color:var(--pitch);
  line-height:1.6;
}
.step__body{display:grid;gap:4px}
.step__title{font-family:var(--font-geo);font-weight:700;font-size:1rem;color:var(--paper)}
.step__text{font-size:15px;color:#B9C5C2}

/* ---------- 9. 筛选标签 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  font-size:14px;
  color:#B9C5C2;
  background:rgba(14,23,38,.9);
  border:1px solid var(--soft-2);
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.chip:hover{border-color:var(--neon);color:var(--neon)}
.chip[aria-pressed="true"],.chip.is-active{
  background:rgba(53,240,160,.14);
  border-color:var(--pitch);
  color:var(--pitch);
}

/* ---------- 10. 数据表 ---------- */
.dtable{
  width:100%;
  border-collapse:collapse;
  background:var(--panel);
  font-size:15px;
}
.dtable caption{
  text-align:left;
  padding-bottom:12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
}
.dtable th{
  text-align:left;
  padding:13px 16px;
  font-family:var(--font-geo);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--pitch);
  border-bottom:1px solid var(--halo-strong);
  white-space:nowrap;
}
.dtable td{
  padding:13px 16px;
  color:#CBD5D2;
  border-bottom:1px solid var(--soft);
  vertical-align:top;
}
.dtable tbody tr{transition:background-color 220ms var(--ease)}
.dtable tbody tr:hover{background:rgba(53,240,160,.05)}

/* ---------- 11. 图片容器 ---------- */
.figure{
  position:relative;
  overflow:hidden;
  background:linear-gradient(140deg,#0E1726,#07090C);
  border:1px solid var(--halo);
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)));
}
.figure__media{
  display:block;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(120deg,rgba(11,58,52,.7),rgba(14,23,38,.9));
}
.figure__media img,
.figure__media video,
.figure__media picture{display:block;width:100%;height:100%;object-fit:cover}
.figure--wide .figure__media{aspect-ratio:21/9}
.figure--tall .figure__media{aspect-ratio:4/5}
.figure--square .figure__media{aspect-ratio:1/1}
.figure::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;height:36%;
  background:linear-gradient(180deg,rgba(7,9,12,0),rgba(7,9,12,.88));
  pointer-events:none;
}
.figure__caption{
  position:relative;
  z-index:2;
  margin-top:-38px;
  padding:0 18px 16px;
  font-size:13px;
  line-height:1.6;
  color:#B9C5C2;
}

/* ---------- 12. 头部骨架 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:calc(var(--rail) + 10px);
  z-index:120;
  padding:10px 18px;
  background:var(--pitch);
  color:#04140E;
  font-weight:700;
  font-size:15px;
  transform:translateY(-180%);
  transition:transform 220ms var(--ease);
}
.skip-link:focus{transform:none;color:#04140E}

.readline{
  position:fixed;
  top:0;left:var(--rail);right:0;
  height:3px;
  background:var(--halo-faint);
  z-index:70;
  pointer-events:none;
}
.readline__bar{
  display:block;
  width:0;height:100%;
  background:linear-gradient(90deg,var(--pitch),var(--neon) 62%,var(--alert));
  box-shadow:0 0 14px rgba(53,240,160,.55);
}

.pulse-rail{
  position:fixed;
  top:0;bottom:0;left:0;
  width:var(--rail);
  z-index:60;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:space-between;
  padding:22px 0 24px;
  background:linear-gradient(180deg,#0E1726 0%,#07090C 62%);
  border-right:1px solid var(--halo);
}
.pulse-rail__brand,
.pulse-rail__meta{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.34em;
  color:var(--pitch);
  opacity:.85;
}
.pulse-rail__meta{color:var(--muted);opacity:.7}
.pulse-rail__spine{
  position:relative;
  flex:1;
  width:100%;
  display:flex;
  justify-content:center;
  margin:20px 0;
}
.pulse-rail__track{
  position:absolute;
  top:0;bottom:0;left:50%;
  width:1px;
  margin-left:-.5px;
  background:var(--halo);
}
.pulse-rail__fill{
  display:block;
  width:2px;
  height:0;
  margin-left:-.5px;
  background:linear-gradient(180deg,var(--pitch),var(--neon));
  box-shadow:0 0 10px rgba(53,240,160,.5);
  animation:pulse-breathe 2.4s var(--ease) infinite;
}
.pulse-rail__dots{
  position:absolute;
  top:0;bottom:0;left:0;right:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:space-between;
}
.pulse-rail__dot{display:flex}
.pulse-dot{
  width:11px;height:11px;
  padding:0;
  background:transparent;
  border:1px solid rgba(53,240,160,.5);
  cursor:pointer;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.pulse-dot:hover{border-color:var(--neon);background:rgba(79,216,255,.22)}
.pulse-dot[aria-current="true"]{
  background:var(--pitch);
  border-color:var(--pitch);
  box-shadow:0 0 0 4px rgba(53,240,160,.16);
}

.topbar{
  position:fixed;
  top:0;left:var(--rail);right:0;
  height:var(--bar-h);
  z-index:55;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 clamp(18px,3vw,36px);
  background:rgba(7,9,12,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--halo);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:var(--paper);
}
.brand:hover{color:var(--paper)}
.brand__mark{
  display:grid;
  place-items:center;
  width:36px;height:36px;
  background:linear-gradient(140deg,var(--pitch),#0B3A34);
  color:#04140E;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:13px;
  letter-spacing:.02em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
}
.brand__text{display:grid;gap:1px}
.brand__name{font-family:var(--font-geo);font-size:17px;font-weight:700;letter-spacing:.01em;line-height:1.2}
.brand__tag{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--muted);
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:9px 14px;
  background:transparent;
  border:1px solid var(--halo);
  color:var(--paper);
  font-size:13px;
  letter-spacing:.12em;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}
.nav-toggle__box{display:grid;gap:5px;width:16px}
.nav-toggle__box span{
  display:block;height:2px;background:var(--pitch);
  transition:transform 240ms var(--ease),opacity 240ms var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__box span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

.nav{
  display:flex;
  align-items:center;
  gap:16px;
  margin-left:auto;
}
.nav__list{display:flex;align-items:center;gap:2px}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:9px 12px;
  color:#B9C5C2;
  font-size:15px;
  text-decoration:none;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.nav__link:hover{color:var(--paper);background:rgba(53,240,160,.07)}
.nav__no{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--pitch);
  opacity:.65;
}
.nav__link::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:4px;height:4px;
  margin-top:-2px;
  background:var(--pitch);
  opacity:0;
  transform:scale(.4);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}
.nav__link:hover::before,
.nav__link:focus-visible::before{
  opacity:1;
  transform:scale(1);
  animation:pulse-breathe 2.4s var(--ease) infinite;
}
.nav__link[aria-current="page"]{color:var(--paper);background:rgba(53,240,160,.06)}
.nav__link[aria-current="page"]::before{opacity:1;transform:scale(1)}
.nav__link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:1px;
  background:linear-gradient(90deg,var(--pitch),rgba(53,240,160,0));
}
.nav__utility{display:none}
.nav__utility-link{color:#B9C5C2;font-size:14px}
.nav__utility-link:hover{color:var(--pitch)}
.nav__cta{flex:0 0 auto}

@keyframes pulse-breathe{
  0%,100%{opacity:.55}
  50%{opacity:1}
}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,120px);
  padding:0 0 30px;
  background:linear-gradient(180deg,#0B3A34 0%,#08221F 42%,#07090C 100%);
  border-top:1px solid var(--halo);
  z-index:1;
}
.site-footer__edge{
  height:14px;
  background-image:repeating-linear-gradient(112deg,rgba(53,240,160,.5) 0 2px,transparent 2px 11px);
  opacity:.5;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3,1fr);
  gap:clamp(24px,4vw,40px);
  padding-block:clamp(36px,5vw,60px) 32px;
  border-bottom:1px solid var(--soft);
}
.footer__col{display:grid;align-content:start;gap:14px}
.footer__title{
  font-family:var(--font-geo);
  font-size:14px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--pitch);
  padding-bottom:10px;
  border-bottom:1px solid var(--halo);
}
.footer__list{display:grid;gap:2px}
.footer__link{
  display:inline-block;
  padding:4px 0;
  font-size:14px;
  color:#A9B7B3;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer__link:hover{color:var(--pitch);transform:translateX(4px)}
.footer__note{font-size:14px;line-height:1.7;color:#9FB0AC;max-width:26ch}
.brand--footer{margin-bottom:4px}
.brand--footer .brand__mark{width:42px;height:42px;font-size:14px}
.footer__pulse{display:flex;align-items:flex-end;gap:4px;height:26px;margin-top:6px}
.footer__pulse span{
  display:block;
  width:3px;height:30%;
  transform-origin:bottom;
  background:linear-gradient(180deg,var(--pitch),rgba(53,240,160,.12));
  animation:pulse-bars 2.4s var(--ease) infinite;
}
.footer__pulse span:nth-child(2){height:52%;animation-delay:.16s}
.footer__pulse span:nth-child(3){height:86%;animation-delay:.32s}
.footer__pulse span:nth-child(4){height:44%;animation-delay:.48s}
.footer__pulse span:nth-child(5){height:70%;animation-delay:.64s}
.footer__pulse span:nth-child(6){height:34%;animation-delay:.8s}
@keyframes pulse-bars{
  0%,100%{transform:scaleY(.55)}
  50%{transform:scaleY(1)}
}

.footer-contact{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 16px;
  padding-block:24px;
  border-bottom:1px solid var(--soft);
}
.copy-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:9px 14px;
  background:rgba(7,9,12,.5);
  border:1px solid var(--halo);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:14px;
  cursor:pointer;
  clip-path:polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.copy-btn:hover{border-color:var(--neon);background:rgba(79,216,255,.08)}
.copy-btn.is-copied{border-color:var(--pitch)}
.copy-btn__flag{
  font-family:var(--font-sans);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--pitch);
}
.footer__addr{font-size:14px;color:#9FB0AC}
.footer__cta{
  margin-left:auto;
  padding:9px 18px;
  border:1px solid var(--halo-strong);
  color:var(--pitch);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.footer__cta:hover{background:var(--pitch);color:#04140E}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  padding-top:22px;
  font-size:13px;
  color:var(--muted);
}
.footer-legal__links{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.footer-legal a{color:var(--muted);border-bottom:1px solid rgba(135,148,163,.35);padding-bottom:1px}
.footer-legal a:hover{color:var(--neon);border-color:var(--neon)}
.footer-legal__sep{color:rgba(135,148,163,.45)}
.footer-legal__copy{font-size:13px}
.icp{font-family:var(--font-mono);letter-spacing:.04em}

/* ---------- 14. 显现与状态 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}
html.nav-open{overflow:hidden}

/* ---------- 15. 桌面紧凑档 ---------- */
@media (max-width:1279px) and (min-width:1024px){
  .nav__link{padding:9px 9px;font-size:14px}
  .nav__no{display:none}
  .brand__tag{display:none}
}

/* ---------- 16. 平板与手机 ---------- */
@media (max-width:1023px){
  :root{--bar-h:64px}
  body{
    padding-left:0;
    padding-top:var(--bar-h);
    padding-bottom:70px;
  }
  .skip-link{left:10px}
  .readline{left:0}
  body::before{background:radial-gradient(520px 320px at 82% -4%,rgba(53,240,160,.08),transparent 70%)}

  .pulse-rail{
    inset:auto 0 0 0;
    width:100%;
    height:58px;
    flex-direction:row;
    justify-content:center;
    gap:14px;
    padding:0 16px;
    border-right:0;
    border-top:1px solid var(--halo);
    background:rgba(7,9,12,.94);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
  }
  .pulse-rail__brand,
  .pulse-rail__meta,
  .pulse-rail__track{display:none}
  .pulse-rail__spine{flex:0 0 auto;width:auto;margin:0}
  .pulse-rail__dots{
    position:static;
    flex-direction:row;
    gap:14px;
    align-items:center;
  }
  .site-header[data-rail="off"] .pulse-rail{display:none}
  .site-header[data-rail="off"] ~ *{scroll-margin-top:80px}

  .topbar{left:0;padding:0 16px;gap:12px}
  .nav-toggle{display:inline-flex}
  .brand__tag{display:none}

  .nav{
    position:fixed;
    left:0;right:0;
    top:var(--bar-h);
    bottom:0;
    z-index:58;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:22px 20px 96px;
    background:linear-gradient(180deg,#0B1220 0%,#07090C 100%);
    border-top:1px solid var(--halo);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity 280ms var(--ease),transform 280ms var(--ease),visibility 280ms var(--ease);
  }
  .nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav__list{flex-direction:column;align-items:stretch;gap:0}
  .nav__link{
    justify-content:flex-start;
    padding:16px 6px;
    font-size:19px;
    font-weight:700;
    border-bottom:1px solid var(--soft);
  }
  .nav__link::before{display:none}
  .nav__no{font-size:12px;opacity:.9}
  .nav__link[aria-current="page"]{background:transparent}
  .nav__link[aria-current="page"]::after{
    left:0;right:auto;
    top:12px;bottom:12px;
    width:3px;height:auto;
    background:var(--pitch);
  }
  .nav__utility{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px 16px;
    margin-top:26px;
    padding-top:22px;
    border-top:1px solid var(--halo);
  }
  .nav__cta{margin-top:22px;align-self:flex-start}

  .bento{grid-template-columns:repeat(4,1fr)}
  .bento>*,
  .bento__wide,
  .bento__half,
  .bento__third,
  .bento__quarter{grid-column:span 4}
  .bento__focus{grid-column:span 4;grid-row:auto}

  .panel,.card{clip-path:polygon(0 0,calc(100% - 7px) 0,100% 7px,100% 100%,7px 100%,0 calc(100% - 7px))}
  .panel--cut-bl{clip-path:polygon(0 0,100% 0,100% 100%,7px 100%,0 calc(100% - 7px))}
  .figure{clip-path:polygon(0 0,calc(100% - 7px) 0,100% 7px,100% 100%,7px 100%,0 calc(100% - 7px))}

  .footer-grid{grid-template-columns:1fr 1fr}
  .footer__col--brand{grid-column:1/-1}
  .footer__cta{margin-left:0}
}

@media (max-width:560px){
  body{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .dtable{font-size:14px}
  .dtable th,.dtable td{padding:11px 12px}
  .footer-legal{flex-direction:column;align-items:flex-start}
}

/* ---------- 17. 动效降级 ---------- */
@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}
  .readline__bar{transition:none}
  .pulse-rail__fill{animation:none;opacity:.8}
}