@charset "UTF-8";
/* ==========================================================================
   朝闻道 DaoPath — site.css
   组件与版式。依赖 base.css 的令牌与复位。
   区块顺序：骨架网格 → 顶栏 → 导航 → 按钮 → 区块 → 卡方 → 构成 →
             滚动字 → 对话 → 表格 → 诗 → 问答 → 页脚 → 页面 → 响应式
   ========================================================================== */

/* --------------------------------------------------------------------------
   骨架：栅格与分栏
   -------------------------------------------------------------------------- */
.cols { display: grid; gap: clamp(16px, 2.2vw, 30px); }
.cols--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.cols--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); }
.cols--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }

/* 2px 实线组成的“方块阵列”：容器当线，格子当纸 */
.ruled-grid {
  display: grid;
  gap: var(--rule);
  background: var(--line);
  border: var(--rule) solid var(--line);
}
.ruled-grid > * { background: var(--paper-2); }
.ruled-grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.ruled-grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 64px);
  align-items: center;
}
.split--top { align-items: start; }
.split--wide-left { grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); }
.split--wide-right { grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); }

/* 间距工具 */
.mt-s { margin-top: 12px; }
.mt-m { margin-top: 24px; }
.mt-l { margin-top: 40px; }
.mt-xl { margin-top: 64px; }
.mb-s { margin-bottom: 12px; }
.mb-m { margin-bottom: 24px; }
.mb-l { margin-bottom: 40px; }

/* --------------------------------------------------------------------------
   顶栏：品牌 + 导航
   -------------------------------------------------------------------------- */
.site-head { position: relative; }

/* 顶部滚动条（.ticker）已按需求移除；下面这个关键帧仍被 .marquee 复用。 */
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.head-bar {
  position: sticky;
  top: 0;
  z-index: var(--z-head);
  background: var(--paper);
  border-bottom: var(--rule) solid var(--line);
}
.head-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--head-h, 74px);
}

/* 顶部滚动进度：一根 3px 的红杠 */
.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc(var(--rule) * -1);
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

.brand { display: inline-flex; align-items: center; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
/* 字标：源图裁掉透明留白后为 550x170（宽高比 3.235），24px 高 -> 约 78px 宽。
   顶栏用勃艮第红版，页脚用纸色版，两版都由 tools/build-logo.py 生成。 */
.brand__logo { display: block; width: auto; height: 24px; }
.brand__en {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: .6rem;
  letter-spacing: .3em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.brand:hover .brand__en { color: var(--red); }

.head-actions { display: flex; align-items: center; gap: 12px; }

/* --------------------------------------------------------------------------
   导航
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  width: min(86vw, 420px);
  padding-top: calc(var(--head-h, 74px) + 46px);
  background: var(--paper);
  border-left: var(--rule) solid var(--line);
  box-shadow: -8px 0 0 rgba(16, 16, 16, .1);
  overflow-y: auto;
  transform: translateX(102%);
  transition: transform .42s var(--ease);
}
.nav.is-open { transform: none; }

.nav__list { display: flex; flex-direction: column; }
.nav__link {
  position: relative;
  display: block;
  padding: 18px var(--gutter);
  border-bottom: var(--rule-thin) solid var(--line-soft);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: .01em;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.nav__link:hover { background: var(--ink); color: var(--paper); }
.nav__link[aria-current="page"] { color: var(--red); }
.nav__link[aria-current="page"]:hover { color: var(--paper-2); }

.burger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
}
.burger__bar {
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.burger.is-active .burger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-active .burger__bar:nth-child(2) { opacity: 0; }
.burger.is-active .burger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 981px) {
  .nav {
    position: static;
    width: auto;
    padding-top: 0;
    background: none;
    border: 0;
    box-shadow: none;
    overflow: visible;
    transform: none;
  }
  .nav__list { flex-direction: row; gap: clamp(8px, 1.7vw, 28px); }
  .nav__link { padding: 6px 2px; border: 0; font-size: .95rem; font-weight: 700; }
  .nav__link::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    background: var(--red);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform var(--dur-fast) var(--ease);
  }
  .nav__link:hover { background: none; color: var(--red); }
  .nav__link:hover::after,
  .nav__link[aria-current="page"]::after { transform: scaleX(1); }
  .burger { display: none; }
}

/* --------------------------------------------------------------------------
   按钮 —— 一律直角，一律方块
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 28px;
  background: var(--paper-2);
  color: var(--ink);
  border: var(--rule) solid var(--line);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  transition: background var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              transform var(--dur-fast) var(--ease);
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn__arrow { transition: transform var(--dur-fast) var(--ease); }
.btn:hover .btn__arrow { transform: translateX(5px); }

.btn--red { background: var(--red); border-color: var(--red); color: var(--paper-2); }
.btn--red:hover { background: var(--red-deep); border-color: var(--red-deep); color: var(--paper-2); }

.btn--ink { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn--ink:hover { background: var(--red); border-color: var(--red); color: var(--paper-2); }

.btn--ghost { background: transparent; }
.btn--paper { background: var(--paper); border-color: var(--paper); color: var(--ink); }
.btn--paper:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

.btn--sm { padding: 10px 16px; font-size: .8rem; }
.btn--block { display: flex; width: 100%; }

/* --------------------------------------------------------------------------
   区块
   -------------------------------------------------------------------------- */
.section {
  position: relative;
  padding-block: clamp(54px, 7vw, 112px);
  border-bottom: var(--rule) solid var(--line);
}
.section--tight { padding-block: clamp(36px, 4.6vw, 68px); }
.section--flush { border-bottom: 0; }
.section--ink { background: var(--ink); color: var(--paper); }
.section--red { background: var(--red); color: var(--paper-2); }
.section--paper2 { background: var(--paper-2); }

.section__head {
  display: grid;
  grid-template-columns: minmax(0, .36fr) minmax(0, .64fr);
  gap: clamp(18px, 3vw, 54px);
  align-items: start;
  margin-bottom: clamp(30px, 4vw, 60px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.eyebrow .sq { width: 9px; height: 9px; }
.section--ink .eyebrow,
.section--red .eyebrow { color: rgba(243, 240, 233, .8); }

.section__title { font-weight: 900; letter-spacing: -.02em; line-height: 1.05; }

/* --------------------------------------------------------------------------
   卡方 —— 直角卡片，悬停时硬投影
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 2.3vw, 34px);
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
  transition: transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
}
.card--hover:hover {
  transform: translate(-5px, -5px);
  box-shadow: 7px 7px 0 var(--line);
}
.card--red { background: var(--red); color: var(--paper-2); }
.card--ink { background: var(--ink); color: var(--paper); }
.card--paper { background: var(--paper); }

.card__index {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .22em;
  color: var(--red);
}
.card--red .card__index { color: rgba(255, 255, 255, .8); }
.card--ink .card__index { color: var(--red-light); }

.card__title {
  font-size: clamp(1.22rem, 1.9vw, 1.65rem);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.01em;
}
.card__desc { font-size: .94rem; color: var(--ink-2); }
.card--red .card__desc,
.card--ink .card__desc { color: rgba(243, 240, 233, .78); }
.card--red .card__desc { color: rgba(255, 255, 255, .86); }

.card__foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: var(--rule-thin) solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.card--ink .card__foot { border-top-color: var(--line-paper); color: rgba(243, 240, 233, .6); }
.card--red .card__foot { border-top-color: rgba(255, 255, 255, .35); color: rgba(255, 255, 255, .8); }

/* 大号数字卡 */
.stat { padding: clamp(20px, 2.2vw, 32px); }
.stat__num {
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.stat__num--red { color: var(--red); }
.stat__label {
  margin-top: 14px;
  font-size: .875rem;
  color: var(--ink-2);
  line-height: 1.7;
}

/* 标签与状态 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 13px;
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  line-height: 1;
}
.badge--red { background: var(--red); border-color: var(--red); color: var(--paper-2); }
.badge--ink { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.badge--paper { background: var(--paper-2); border-color: var(--paper-2); color: var(--ink); }
.badge--ghost { background: transparent; }
.badge__dot {
  width: 8px;
  height: 8px;
  flex: none;
  background: currentColor;
  animation: blink 1.7s steps(1, end) infinite;
}
@keyframes blink {
  0%, 58%   { opacity: 1; }
  59%, 100% { opacity: .22; }
}

/* --------------------------------------------------------------------------
   包豪斯构成：纯方块阵列
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   信息面板 —— 放真实信息，不做抽象装饰图形
   （早期版本的 .blocks 方块阵列已全部移除：抽象几何装饰在这个页面里
     只会和正文抢注意力，留白 + 真实信息比它有用得多。）
   -------------------------------------------------------------------------- */
.spec {
  width: 100%;
  padding: clamp(18px, 2.2vw, 28px);
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
}
.spec__title {
  padding-bottom: 14px;
  border-bottom: var(--rule-thin) solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.spec__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: var(--rule-thin) solid var(--line-soft);
  font-size: .9rem;
}
.spec__row:last-child { padding-bottom: 0; border-bottom: 0; }
.spec__key { color: var(--ink-3); white-space: nowrap; }
.spec__val { font-weight: 700; text-align: right; }

/* 深色底上反相 */
.page-hero--ink .spec,
.section--ink .spec {
  background: transparent;
  border-color: rgba(243, 240, 233, .3);
}
.page-hero--ink .spec__title,
.section--ink .spec__title {
  color: rgba(243, 240, 233, .55);
  border-bottom-color: rgba(243, 240, 233, .2);
}
.page-hero--ink .spec__row,
.section--ink .spec__row { border-bottom-color: rgba(243, 240, 233, .2); }
.page-hero--ink .spec__key,
.section--ink .spec__key { color: rgba(243, 240, 233, .62); }
.page-hero--ink .spec__val,
.section--ink .spec__val { color: var(--paper); }

/* --------------------------------------------------------------------------
   滚动字条
   -------------------------------------------------------------------------- */
.marquee {
  padding-block: clamp(16px, 1.8vw, 26px);
  background: var(--ink);
  color: var(--paper);
  border-bottom: var(--rule) solid var(--line);
  overflow: hidden;
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: ticker-scroll 52s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group { display: flex; align-items: center; }
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: clamp(20px, 2.6vw, 44px);
  padding-inline: clamp(20px, 2.6vw, 44px);
  font-size: clamp(1.25rem, 2.9vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.1;
  white-space: nowrap;
}
.marquee__item .sq { width: .48em; height: .48em; background: var(--red-light); }

/* --------------------------------------------------------------------------
   对话样例（静态）
   -------------------------------------------------------------------------- */
.chat {
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
}
.chat__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 15px;
  background: var(--ink);
  color: var(--paper);
  border-bottom: var(--rule) solid var(--line);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.chat__dots { display: flex; gap: 6px; margin-left: auto; }
.chat__dots i { width: 9px; height: 9px; background: rgba(243, 240, 233, .4); }
.chat__dots i:first-child { background: var(--red-light); }
.chat__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(16px, 2vw, 26px);
}
.chat__meta {
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: .62rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.chat__msg {
  max-width: 82%;
  padding: 13px 17px;
  border: var(--rule) solid var(--line);
  font-size: .94rem;
  line-height: 1.75;
}
.chat__msg--bot { align-self: flex-start; background: var(--paper); }
.chat__msg--me { align-self: flex-end; background: var(--ink); color: var(--paper); }
.chat__msg--me .chat__meta { color: rgba(243, 240, 233, .5); }
.chat__input {
  display: flex;
  border-top: var(--rule) solid var(--line);
}
.chat__input span {
  flex: 1;
  padding: 15px 17px;
  color: var(--ink-3);
  font-size: .9rem;
}
.chat__input b {
  display: grid;
  place-items: center;
  width: 60px;
  background: var(--red);
  color: var(--paper-2);
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   表格
   -------------------------------------------------------------------------- */
.table-wrap {
  overflow-x: auto;
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
}
.tbl {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
}
.tbl th,
.tbl td {
  padding: 15px 17px;
  text-align: left;
  vertical-align: top;
  font-size: .93rem;
  border-bottom: var(--rule-thin) solid var(--line-soft);
}
.tbl thead th {
  background: var(--ink);
  color: var(--paper);
  border-bottom: var(--rule) solid var(--line);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.tbl tbody tr:last-child td { border-bottom: 0; }
.tbl tbody tr:hover td { background: rgba(225, 37, 27, .07); }
.tbl td strong { color: var(--red); }

/* --------------------------------------------------------------------------
   古体诗展示
   -------------------------------------------------------------------------- */
.poem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: var(--rule);
  background: var(--line);
  border: var(--rule) solid var(--line);
}
.poem { padding: clamp(20px, 2.4vw, 34px); background: var(--paper-2); }
.poem--ink { background: var(--ink); color: var(--paper); }
.poem--red { background: var(--red); color: var(--paper-2); }
.poem__text {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.9vw, 1.5rem);
  line-height: 2.15;
  letter-spacing: .1em;
}
.poem__meta {
  margin-top: 20px;
  padding-top: 14px;
  border-top: var(--rule-thin) solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.poem--ink .poem__meta { border-top-color: var(--line-paper); color: rgba(243, 240, 233, .6); }
.poem--red .poem__meta { border-top-color: rgba(255, 255, 255, .35); color: rgba(255, 255, 255, .85); }
.poem--vertical .poem__text {
  writing-mode: vertical-rl;
  text-orientation: upright;
  height: 300px;
  margin-inline: auto;
  letter-spacing: .22em;
}

/* --------------------------------------------------------------------------
   问答 / 折叠
   -------------------------------------------------------------------------- */
.faq { background: var(--paper-2); border: var(--rule) solid var(--line); }
.faq__item + .faq__item { border-top: var(--rule-thin) solid var(--line-soft); }
.faq__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 21px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: '+';
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--red);
}
.faq__item[open] .faq__q::after { content: '−'; }
.faq__q:hover { background: rgba(225, 37, 27, .06); }
.faq__a {
  padding: 0 21px 22px;
  font-size: .93rem;
  color: var(--ink-2);
  max-width: 78ch;
}

/* 方点列表 */
.list-sq { display: grid; gap: 12px; }
.list-sq li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: .94rem;
  color: var(--ink-2);
}
.list-sq li::before {
  content: '';
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: .58em;
  background: var(--red);
}
.section--ink .list-sq li { color: rgba(243, 240, 233, .78); }
.section--ink .list-sq li::before { background: var(--red-light); }
.section--red .list-sq li { color: rgba(255, 255, 255, .88); }
.section--red .list-sq li::before { background: var(--paper-2); }

/* 红底 / 墨底卡片内的方点列表也要跟着反白 */
.card--red .list-sq li { color: rgba(255, 255, 255, .94); }
.card--red .list-sq li::before { background: var(--paper-2); }
.card--ink .list-sq li { color: rgba(243, 240, 233, .8); }
.card--ink .list-sq li::before { background: var(--red-light); }

/* --------------------------------------------------------------------------
   正文块与行内链接
   -------------------------------------------------------------------------- */
.prose { max-width: 70ch; }
.prose p { color: var(--ink-2); }
.prose p + p { margin-top: 1.15em; }
.prose h3 {
  margin-top: 2.2em;
  margin-bottom: .7em;
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  font-weight: 900;
}
.prose strong { color: var(--ink); }
.section--ink .prose p { color: rgba(243, 240, 233, .78); }
.section--ink .prose strong { color: var(--paper); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  border-bottom: var(--rule) solid var(--red);
  font-weight: 700;
}
.link-arrow span:last-child { transition: transform var(--dur-fast) var(--ease); }
.link-arrow:hover { color: var(--red); }
.link-arrow:hover span:last-child { transform: translateX(5px); }
.section--ink .link-arrow:hover,
.section--red .link-arrow:hover { color: inherit; }

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.site-foot {
  background: var(--ink);
  color: var(--paper);
  border-top: var(--rule) solid var(--ink);
}
.foot__giant {
  display: block;
  padding-top: clamp(30px, 4vw, 56px);
  font-size: clamp(3rem, 13vw, 11rem);
  font-weight: 900;
  line-height: .82;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 2px rgba(243, 240, 233, .22);
  user-select: none;
}
.foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, .62fr));
  gap: clamp(24px, 3vw, 52px);
  padding-block: clamp(38px, 4.6vw, 68px);
}
.foot__col h2 {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red-light);
}
.foot__list { display: grid; gap: 11px; font-size: .9rem; }
.foot__list a { transition: color var(--dur-fast) var(--ease); }
.foot__list a:hover { color: var(--red-light); }
.foot__addr { display: grid; gap: 12px; margin-top: 22px; }
.foot__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 30px;
  padding-block: 22px;
  border-top: var(--rule-thin) solid var(--line-paper);
  font-size: .8rem;
  color: rgba(243, 240, 233, .6);
}
.foot__bottom a:hover { color: var(--paper); }
.site-foot p { color: rgba(243, 240, 233, .68); }
.site-foot .brand__en { color: rgba(243, 240, 233, .5); }
.site-foot .brand:hover .brand__en { color: var(--red-light); }
.site-foot .link-arrow:hover { color: var(--red-light); }

/* --------------------------------------------------------------------------
   首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  border-bottom: var(--rule) solid var(--line);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 92px 92px;
  opacity: .5;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, .55fr);
  gap: clamp(26px, 3.4vw, 64px);
  align-items: center;
  padding-block: clamp(46px, 6.4vw, 104px);
}
.hero__aside {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
}
.hero__aside .badge { align-self: center; }
.hero__title { display: block; }
.hero__title .line { display: block; }
.hero__title .line--en {
  font-family: var(--font-mono);
  font-size: clamp(.85rem, 1.7vw, 1.5rem);
  font-weight: 600;
  letter-spacing: .34em;
  color: var(--red);
  margin-top: clamp(14px, 1.6vw, 22px);
}
.hero__quote {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 1.7vw, 1.4rem);
  letter-spacing: .16em;
  color: var(--ink-2);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(26px, 3vw, 42px);
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: clamp(26px, 3vw, 40px);
  padding-top: 22px;
  border-top: var(--rule-thin) solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.hero__meta b { color: var(--ink); font-weight: 700; }

/* --------------------------------------------------------------------------
   内页头
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  padding-block: clamp(42px, 5.6vw, 88px);
  border-bottom: var(--rule) solid var(--line);
  overflow: hidden;
}
.page-hero--red { background: var(--red); color: var(--paper-2); }
.page-hero--ink { background: var(--ink); color: var(--paper); }
.page-hero--red .lead,
.page-hero--ink .lead { color: inherit; opacity: .85; }
.page-hero__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: clamp(18px, 2.4vw, 32px);
}
.page-hero__title { margin-bottom: clamp(16px, 2vw, 26px); }
.page-hero__en {
  margin-bottom: clamp(16px, 2vw, 24px);
  font-family: var(--font-mono);
  font-size: clamp(.8rem, 1.4vw, 1.1rem);
  font-weight: 600;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--red);
}
.page-hero--ink .page-hero__en { color: var(--red-light); }
.page-hero--red .page-hero__en { color: var(--paper-2); }
.page-hero__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(24px, 3vw, 38px);
}
.crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.page-hero--red .crumb,
.page-hero--ink .crumb { color: rgba(243, 240, 233, .65); }
.crumb li::after { content: '/'; margin-left: 10px; opacity: .5; }
.crumb li:last-child::after { content: ''; }
.page-hero--red .crumb li:last-child,
.page-hero--ink .crumb li:last-child { color: var(--paper-2); }

/* --------------------------------------------------------------------------
   通栏色带
   -------------------------------------------------------------------------- */
.band {
  padding-block: clamp(42px, 5.4vw, 84px);
  background: var(--red);
  color: var(--paper-2);
  border-bottom: var(--rule) solid var(--line);
}
.band--ink { background: var(--ink); color: var(--paper); }
.band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  gap: clamp(22px, 3vw, 56px);
  align-items: end;
}
.band__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.band .lead { color: rgba(255, 255, 255, .85); }
.band--ink .lead { color: rgba(243, 240, 233, .8); }

/* --------------------------------------------------------------------------
   联系
   -------------------------------------------------------------------------- */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  width: 100%;
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .06em;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.copy-btn:hover { background: var(--ink); color: var(--paper); }
.copy-btn.is-copied { background: var(--red); border-color: var(--red); color: var(--paper-2); }
.copy-btn__tag {
  margin-left: auto;
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  opacity: .65;
}

.form { display: grid; gap: 18px; }
.field { display: grid; gap: 9px; }
.field label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.field input,
.field select,
.field textarea {
  padding: 14px 16px;
  background: var(--paper-2);
  border: var(--rule) solid var(--line);
  font-size: .95rem;
}
.field textarea { min-height: 148px; resize: vertical; }
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible { outline: 3px solid var(--red); outline-offset: 0; }
.form__note { font-size: .82rem; color: var(--ink-3); }

/* --------------------------------------------------------------------------
   入场动画
   -------------------------------------------------------------------------- */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  transition-delay: var(--d, 0ms);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* --------------------------------------------------------------------------
   404
   -------------------------------------------------------------------------- */
.notfound {
  display: grid;
  place-items: center;
  min-height: 62vh;
  text-align: center;
}
.notfound__code {
  font-size: clamp(5rem, 24vw, 18rem);
  font-weight: 900;
  line-height: .82;
  letter-spacing: -.06em;
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .foot__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (max-width: 980px) {
  .section__head { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .hero__inner { grid-template-columns: minmax(0, 1fr); }
  .split,
  .split--wide-left,
  .split--wide-right { grid-template-columns: minmax(0, 1fr); }
  .band__inner { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .hero__aside { max-width: 420px; margin-inline: auto; }
  .page-hero__title { font-size: clamp(2.2rem, 8vw, 3.4rem); }
}

@media (max-width: 720px) {
  :root { --head-h: 64px; }
  .head-actions .btn { display: none; }
  .foot__grid { grid-template-columns: minmax(0, 1fr); }
  .foot__bottom { flex-direction: column; align-items: flex-start; }
  .chat__msg { max-width: 92%; }
  .hero__meta { gap: 10px 18px; }
}