/* ============================================================
   6686中心 · 共享样式表 /assets/site.css
   导视系统式站点：深靛蓝底 + 琥珀金路径 + 青瓷绿状态
   ============================================================ */

:root {
  --se-ink: #101A3A;
  --se-ink-deep: #0C1430;
  --se-ink-2: #1B2A5B;
  --se-card: #2E437E;
  --se-mist: #A9B6D9;
  --se-gold: #E0A43B;
  --se-gold-soft: #F3D08C;
  --se-jade: #3FBFA0;
  --se-jade-dark: #1F7A67;
  --se-paper: #F5F2EA;
  --se-black: #050A18;

  --se-font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --se-font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --se-font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --se-shell-w: 1180px;
  --se-radius: 18px;
  --se-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  background: var(--se-ink-deep);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}

body {
  margin: 0;
  min-height: 100vh;
  color: rgba(245, 242, 234, 0.9);
  font-family: var(--se-font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.008em;
  background-color: var(--se-ink);
  background-image:
    radial-gradient(1080px 620px at 84% -10%, rgba(63, 191, 160, 0.12), transparent 62%),
    radial-gradient(880px 540px at 6% 2%, rgba(224, 164, 59, 0.09), transparent 60%),
    linear-gradient(176deg, #0D1530 0%, #101A3A 44%, #0B1230 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(169, 182, 217, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 182, 217, 0.05) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(118% 86% at 50% -6%, #000 8%, transparent 72%);
  mask-image: radial-gradient(118% 86% at 50% -6%, #000 8%, transparent 72%);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-family: var(--se-font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: var(--se-paper);
}

p { margin: 0 0 1.1em; }

a { color: var(--se-gold-soft); text-decoration: none; }
a:hover { color: var(--se-gold); }

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

button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }

::selection { background: rgba(224, 164, 59, 0.35); color: var(--se-paper); }

:focus-visible {
  outline: 2px solid var(--se-gold-soft);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 布局基础 ---------- */
.se-shell {
  width: min(var(--se-shell-w), calc(100% - 40px));
  margin-inline: auto;
}

.se-section { padding-block: clamp(56px, 8vw, 112px); }
.se-section__head { max-width: 62ch; }

.se-stack { display: flex; flex-direction: column; gap: 18px; }

.se-grid { display: grid; gap: 24px; }
.se-grid--split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
.se-grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.se-grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.se-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 16px;
  font-family: var(--se-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--se-jade);
}
.se-eyebrow::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(63, 191, 160, 0.5), rgba(63, 191, 160, 0));
}

.se-title {
  margin: 0 0 18px;
  font-size: clamp(1.85rem, 3.6vw, 3rem);
  text-wrap: balance;
}

.se-lead {
  margin: 0 0 22px;
  max-width: 40ch;
  font-size: 1.04rem;
  line-height: 1.82;
  color: rgba(245, 242, 234, 0.76);
}

.se-mono {
  font-family: var(--se-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

/* ---------- 面包屑 ---------- */
.se-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  font-family: var(--se-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: rgba(169, 182, 217, 0.85);
}
.se-crumbs a {
  color: inherit;
  border-bottom: 1px solid transparent;
  transition: color 140ms ease-out, border-color 140ms ease-out;
}
.se-crumbs a:hover { color: var(--se-gold-soft); border-bottom-color: rgba(224, 164, 59, 0.55); }
.se-crumbs__sep { color: rgba(169, 182, 217, 0.4); }

/* ---------- 标签与按钮 ---------- */
.se-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 7px;
  border: 1px solid rgba(169, 182, 217, 0.22);
  background: rgba(169, 182, 217, 0.12);
  color: var(--se-mist);
  font-family: var(--se-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  line-height: 1.6;
  white-space: nowrap;
}
.se-tag--gold { background: rgba(224, 164, 59, 0.15); color: var(--se-gold-soft); border-color: rgba(224, 164, 59, 0.42); }
.se-tag--jade { background: rgba(63, 191, 160, 0.14); color: var(--se-jade); border-color: rgba(63, 191, 160, 0.4); }

.se-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease-out, box-shadow 160ms ease-out,
              background-color 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out;
}
.se-btn--gold {
  background: linear-gradient(135deg, #E0A43B, #F3D08C);
  color: #101A3A;
  box-shadow: 0 8px 22px -10px rgba(224, 164, 59, 0.9);
}
.se-btn--gold:hover { color: #101A3A; transform: translateY(-2px); box-shadow: 0 14px 30px -10px rgba(224, 164, 59, 1); }
.se-btn--ghost { background: transparent; color: var(--se-paper); border-color: rgba(169, 182, 217, 0.4); }
.se-btn--ghost:hover { color: var(--se-jade); border-color: var(--se-jade); transform: translateY(-2px); }
.se-btn--jade { background: rgba(63, 191, 160, 0.14); color: var(--se-jade); border-color: rgba(63, 191, 160, 0.44); }
.se-btn--jade:hover { color: #F5F2EA; background: rgba(63, 191, 160, 0.24); transform: translateY(-2px); }

/* ---------- 纸张叠层卡片 ---------- */
.se-panel {
  position: relative;
  padding: 26px 26px 28px;
  border: 1px solid rgba(169, 182, 217, 0.22);
  border-radius: var(--se-radius);
  background: linear-gradient(168deg, rgba(46, 67, 126, 0.55), rgba(27, 42, 91, 0.74));
  box-shadow: 0 22px 44px -30px rgba(5, 10, 24, 0.95);
  transition: transform 160ms ease-out, border-color 160ms ease-out, box-shadow 160ms ease-out;
}
.se-panel:hover {
  transform: translateY(-4px);
  border-color: rgba(169, 182, 217, 0.44);
  box-shadow: 0 28px 54px -28px rgba(5, 10, 24, 0.98);
}
.se-panel--paper {
  background: linear-gradient(160deg, #F5F2EA, #E7E2D4);
  border-color: rgba(5, 10, 24, 0.14);
  color: var(--se-black);
}
.se-panel--paper h2,
.se-panel--paper h3,
.se-panel--paper h4 { color: var(--se-black); }
.se-panel--paper p { color: rgba(5, 10, 24, 0.82); }

.se-panel__tag {
  position: absolute;
  top: -11px;
  right: 18px;
}

/* ---------- 折叠面板 ---------- */
.se-fold {
  margin-bottom: 12px;
  border: 1px solid rgba(169, 182, 217, 0.2);
  border-radius: 14px;
  background: rgba(27, 42, 91, 0.5);
  overflow: hidden;
}
.se-fold > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 0.98rem;
  color: var(--se-paper);
  transition: background-color 140ms ease-out;
}
.se-fold > summary::-webkit-details-marker { display: none; }
.se-fold > summary:hover { background: rgba(169, 182, 217, 0.07); }
.se-fold > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--se-font-mono);
  font-size: 1rem;
  color: var(--se-gold);
}
.se-fold[open] > summary::after { content: "–"; }
.se-fold__body {
  padding: 0 20px 18px;
  font-size: 0.94rem;
  color: rgba(245, 242, 234, 0.8);
}
.se-fold__body > :last-child { margin-bottom: 0; }

/* ---------- 图片容器 ---------- */
.se-figure {
  position: relative;
  display: block;
  margin: 0;
  aspect-ratio: 16 / 10;
  border: 1px solid rgba(169, 182, 217, 0.24);
  border-radius: 16px;
  overflow: hidden;
  background:
    linear-gradient(rgba(169, 182, 217, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 182, 217, 0.07) 1px, transparent 1px),
    linear-gradient(150deg, #1B2A5B 0%, #101A3A 58%, #14204A 100%);
  background-size: 34px 34px, 34px 34px, auto;
}
.se-figure > img { width: 100%; height: 100%; object-fit: cover; }
.se-figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  font-family: var(--se-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--se-paper);
  background: linear-gradient(0deg, rgba(5, 10, 24, 0.88), rgba(5, 10, 24, 0));
}
.se-figure--wide { aspect-ratio: 21 / 9; }
.se-figure--tall { aspect-ratio: 4 / 5; }
.se-figure--square { aspect-ratio: 1 / 1; }

/* ---------- 纵向锚点导航 ---------- */
.se-anchor {
  position: sticky;
  top: 104px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px;
  border: 1px solid rgba(169, 182, 217, 0.18);
  border-radius: 16px;
  background: rgba(20, 32, 74, 0.46);
}
.se-anchor__title {
  margin: 0 0 12px;
  font-family: var(--se-font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(169, 182, 217, 0.78);
}
.se-anchor__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: 10px;
  font-size: 0.875rem;
  color: rgba(245, 242, 234, 0.72);
  transition: color 140ms ease-out, background-color 140ms ease-out, border-color 140ms ease-out;
}
.se-anchor__link::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(169, 182, 217, 0.45);
  transition: background-color 140ms ease-out;
}
.se-anchor__link:hover { color: var(--se-paper); background: rgba(245, 242, 234, 0.05); }
.se-anchor__link[aria-current="true"] {
  color: var(--se-gold-soft);
  background: rgba(224, 164, 59, 0.1);
  border-left-color: var(--se-gold);
}
.se-anchor__link[aria-current="true"]::before { background: var(--se-gold); }

[data-anchor-section] { scroll-margin-top: 112px; }

/* ============================================================
   头部 · 悬浮胶囊浮岛
   ============================================================ */
.se-skip {
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 220;
  padding: 10px 20px;
  border-radius: 0 0 12px 12px;
  background: var(--se-gold);
  color: #101A3A;
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 0.85rem;
  text-decoration: none;
  transform: translate(-50%, -130%);
  transition: transform 140ms ease-out;
}
.se-skip:focus { transform: translate(-50%, 0); color: #101A3A; }

.se-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: 16px 0 12px;
  background: linear-gradient(180deg, rgba(12, 20, 48, 0.94) 0%, rgba(12, 20, 48, 0.66) 62%, rgba(12, 20, 48, 0) 100%);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: padding 120ms ease-out, background-color 120ms ease-out;
}
.se-header[data-stuck] {
  padding: 8px 0 6px;
  background: rgba(12, 20, 48, 0.96);
}

.se-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(var(--se-shell-w), calc(100% - 32px));
  margin-inline: auto;
  padding: 8px 10px 8px 20px;
  border: 1px solid rgba(169, 182, 217, 0.2);
  border-radius: 999px;
  background: rgba(27, 42, 91, 0.78);
  box-shadow: 0 16px 36px -26px rgba(5, 10, 24, 0.98);
  transition: border-color 120ms ease-out;
}
.se-header[data-stuck] .se-header__inner { border-color: rgba(169, 182, 217, 0.32); }

.se-brand {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  gap: 2px;
  padding-right: 16px;
  border-right: 1px solid rgba(169, 182, 217, 0.22);
  color: var(--se-paper);
  text-decoration: none;
}
.se-brand__mark {
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 1.04rem;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
.se-brand__sub {
  font-family: var(--se-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  line-height: 1;
  color: rgba(169, 182, 217, 0.78);
}

.se-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.se-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.se-nav__link {
  display: block;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.885rem;
  font-weight: 500;
  line-height: 1.3;
  white-space: nowrap;
  color: rgba(245, 242, 234, 0.72);
  transition: color 140ms ease-out, background-color 140ms ease-out;
}
.se-nav__link:hover { color: var(--se-paper); background: rgba(245, 242, 234, 0.08); }
.se-nav__link[aria-current="page"] {
  color: #101A3A;
  font-weight: 800;
  background: linear-gradient(135deg, var(--se-gold), var(--se-gold-soft));
}
.se-nav__meta { display: none; }

.se-header__actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.se-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: #101A3A;
  text-decoration: none;
  background: linear-gradient(135deg, #E0A43B, #F3D08C);
  box-shadow: 0 10px 22px -12px rgba(224, 164, 59, 0.95);
  transition: transform 140ms ease-out, box-shadow 140ms ease-out;
}
.se-cta:hover { color: #101A3A; transform: translateY(-1px); box-shadow: 0 14px 28px -12px rgba(224, 164, 59, 1); }
.se-cta__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #101A3A;
  opacity: 0.5;
}

.se-burger {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(169, 182, 217, 0.3);
  border-radius: 999px;
  background: rgba(16, 26, 58, 0.6);
  color: var(--se-paper);
  cursor: pointer;
  transition: border-color 140ms ease-out, background-color 140ms ease-out;
}
.se-burger:hover { border-color: var(--se-gold); background: rgba(224, 164, 59, 0.12); }
.se-burger__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}
.se-burger__bars::before,
.se-burger__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: top 180ms ease-out, transform 180ms ease-out;
}
.se-burger__bars::before { top: 0; }
.se-burger__bars::after { top: 10px; }
.se-header[data-open] .se-burger__bars::before { top: 5px; transform: rotate(45deg); }
.se-header[data-open] .se-burger__bars::after { top: 5px; transform: rotate(-45deg); }

/* ============================================================
   页脚 · 横向导视带
   ============================================================ */
.se-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(64px, 9vw, 120px);
  border-top: 1px solid rgba(169, 182, 217, 0.18);
  background: linear-gradient(180deg, rgba(27, 42, 91, 0.36) 0%, rgba(11, 18, 48, 0.94) 100%);
}
.se-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, #E0A43B 0%, #F3D08C 16%, #3FBFA0 46%, rgba(63, 191, 160, 0) 84%);
  opacity: 0.8;
}

.se-footer__inner {
  width: min(var(--se-shell-w), calc(100% - 40px));
  margin-inline: auto;
  padding: clamp(42px, 6vw, 72px) 0 32px;
}

.se-footer__band {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(169, 182, 217, 0.16);
}
.se-footer__brand { display: flex; flex-direction: column; gap: 3px; }
.se-footer__mark {
  font-family: var(--se-font-head);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--se-paper);
}
.se-footer__host {
  font-family: var(--se-font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  color: rgba(169, 182, 217, 0.72);
}
.se-footer__nav { min-width: 0; }
.se-footer__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.se-footer__list--stack { flex-direction: column; gap: 10px; }
.se-footer__link {
  font-size: 0.875rem;
  color: rgba(245, 242, 234, 0.72);
  border-bottom: 1px solid transparent;
  transition: color 140ms ease-out, border-color 140ms ease-out;
}
.se-footer__link:hover { color: var(--se-gold-soft); border-bottom-color: rgba(224, 164, 59, 0.55); }

.se-footer__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.se-footer__chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 15px;
  border: 1px solid rgba(63, 191, 160, 0.3);
  border-radius: 999px;
  background: rgba(63, 191, 160, 0.1);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--se-jade);
  transition: background-color 140ms ease-out, color 140ms ease-out, transform 140ms ease-out, border-color 140ms ease-out;
}
.se-footer__chip:hover {
  color: #F5F2EA;
  background: rgba(63, 191, 160, 0.22);
  border-color: var(--se-jade);
  transform: translateY(-1px);
}

.se-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.85fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 48px);
  padding: 30px 0 26px;
  border-bottom: 1px solid rgba(169, 182, 217, 0.16);
}
.se-footer__col { min-width: 0; }
.se-footer__title {
  margin: 0 0 14px;
  font-family: var(--se-font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(169, 182, 217, 0.8);
}
.se-footer__line {
  margin: 0 0 8px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(245, 242, 234, 0.74);
}
.se-footer__note {
  margin: 12px 0 0;
  max-width: 38ch;
  font-size: 0.78rem;
  line-height: 1.72;
  color: rgba(169, 182, 217, 0.74);
}

.se-region {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--se-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--se-jade);
}
.se-region__dots {
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  background-image: radial-gradient(circle, currentColor 1.2px, transparent 1.3px);
  background-size: 5px 5px;
  opacity: 0.65;
}

.se-copy {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  margin: 0 0 12px;
  padding: 8px 12px 8px 14px;
  border: 1px solid rgba(169, 182, 217, 0.24);
  border-radius: 10px;
  background: rgba(16, 26, 58, 0.62);
  color: var(--se-paper);
  font-family: var(--se-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: border-color 140ms ease-out, background-color 140ms ease-out;
}
.se-copy:hover { border-color: var(--se-gold); background: rgba(224, 164, 59, 0.1); }
.se-copy__value { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.se-copy__mark {
  flex: 0 0 auto;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(224, 164, 59, 0.16);
  color: var(--se-gold-soft);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}
.se-copy[data-copied] { border-color: rgba(63, 191, 160, 0.5); }
.se-copy[data-copied] .se-copy__mark { background: rgba(63, 191, 160, 0.2); color: var(--se-jade); }

.se-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 22px;
}
.se-footer__copy {
  margin: 0;
  font-family: var(--se-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(169, 182, 217, 0.72);
}
.se-footer__alias {
  padding: 4px 10px;
  border: 1px dashed rgba(169, 182, 217, 0.22);
  border-radius: 6px;
  font-family: var(--se-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(169, 182, 217, 0.42);
}

/* ============================================================
   返回顶部与显现
   ============================================================ */
.se-jump-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(18px, 3vw, 32px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(169, 182, 217, 0.3);
  border-radius: 50%;
  background: rgba(20, 32, 74, 0.94);
  color: var(--se-paper);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 180ms ease-out, transform 180ms var(--se-ease),
              visibility 0s linear 180ms, border-color 140ms ease-out, color 140ms ease-out;
}
.se-jump-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 180ms ease-out, transform 180ms var(--se-ease),
              visibility 0s, border-color 140ms ease-out, color 140ms ease-out;
}
.se-jump-top:hover { border-color: var(--se-gold); color: var(--se-gold-soft); }
.se-jump-top__arrow {
  width: 10px;
  height: 10px;
  border-left: 2px solid currentColor;
  border-top: 2px solid currentColor;
  border-radius: 1px;
  transform: rotate(45deg) translate(2px, 2px);
}

html[data-reveal-ready] [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms var(--se-ease), transform 520ms var(--se-ease);
}
html[data-reveal-ready] [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

#main-content { position: relative; z-index: 1; display: block; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .se-nav__link { padding: 9px 10px; font-size: 0.84rem; }
  .se-cta { padding: 10px 16px; }
  .se-footer__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .se-footer__grid > .se-footer__col:first-child { grid-column: 1 / -1; }
}

@media (max-width: 920px) {
  .se-header { padding: 10px 0 8px; }
  .se-header[data-stuck] { padding: 6px 0 5px; }
  .se-header__inner {
    width: calc(100% - 24px);
    gap: 10px;
    padding: 8px 8px 8px 16px;
    border-radius: 24px;
  }
  .se-brand { padding-right: 0; border-right: 0; }
  .se-brand__sub { letter-spacing: 0.12em; }
  .se-burger { display: inline-flex; }
  .se-cta { padding: 9px 15px; font-size: 0.82rem; }

  .se-nav {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    top: auto;
    z-index: 90;
    display: block;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 14px;
    border: 1px solid rgba(169, 182, 217, 0.28);
    border-radius: 22px;
    background: linear-gradient(165deg, #1B2A5B 0%, #101A3A 100%);
    box-shadow: 0 34px 62px -26px rgba(5, 10, 24, 0.98);
    transform: translateY(calc(100% + 34px));
    opacity: 0;
    visibility: hidden;
    transition: transform 220ms var(--se-ease), opacity 160ms ease-out, visibility 0s linear 220ms;
  }
  .se-header[data-open] .se-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: transform 220ms var(--se-ease), opacity 180ms ease-out, visibility 0s;
  }
  .se-nav__list { flex-direction: column; align-items: stretch; gap: 6px; }
  .se-nav__link {
    padding: 13px 16px;
    border: 1px solid rgba(169, 182, 217, 0.14);
    border-radius: 14px;
    background: rgba(245, 242, 234, 0.02);
    font-size: 0.95rem;
  }
  .se-nav__meta {
    display: block;
    margin: 12px 4px 2px;
    padding-top: 12px;
    border-top: 1px solid rgba(169, 182, 217, 0.16);
    font-family: var(--se-font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    color: rgba(169, 182, 217, 0.72);
  }

  .se-grid--split,
  .se-grid--halves,
  .se-grid--thirds { grid-template-columns: minmax(0, 1fr); }

  .se-anchor {
    position: static;
    flex-direction: row;
    gap: 6px;
    overflow-x: auto;
    padding: 10px;
    scrollbar-width: none;
  }
  .se-anchor::-webkit-scrollbar { display: none; }
  .se-anchor__title { display: none; }
  .se-anchor__link {
    flex: 0 0 auto;
    gap: 8px;
    padding: 7px 12px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    border-radius: 8px;
    white-space: nowrap;
    font-size: 0.82rem;
  }
  .se-anchor__link[aria-current="true"] {
    border-left-color: transparent;
    border-bottom-color: var(--se-gold);
  }

  .se-footer__band { grid-template-columns: minmax(0, 1fr); gap: 18px; align-items: start; }
  .se-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .se-footer__grid > .se-footer__col:first-child { grid-column: auto; }
}

@media (max-width: 560px) {
  .se-shell { width: calc(100% - 24px); }
  .se-footer__inner { width: calc(100% - 24px); }
  .se-title { font-size: clamp(1.65rem, 7vw, 2.2rem); }
  .se-lead { font-size: 0.98rem; }
  .se-panel { padding: 22px 18px 24px; }
  .se-btn { padding: 12px 22px; font-size: 0.88rem; }
  .se-figure { aspect-ratio: 4 / 3; }
  .se-figure--wide { aspect-ratio: 16 / 9; }
  .se-figure--tall { aspect-ratio: 3 / 4; }
  .se-footer__base { flex-direction: column; align-items: flex-start; }
  .se-jump-top { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  html[data-reveal-ready] [data-reveal] { opacity: 1; transform: none; }
  .se-jump-top { transform: none; }
  .se-panel:hover { transform: none; }
  .se-btn:hover { transform: none; }
  .se-header[data-open] .se-nav,
  .se-nav { transition: opacity 0.001ms linear, visibility 0s; }
}