/* ============================================================================
   南陀官网 · 视觉皮肤层 nantu-skin.css（W-A-6 视觉系统落地；v3 双主题扩展）
   依据：docs/04-design/website-design-proposal.md v1.0 + 业主 v3 需求（2026-09-27）
   方式：在模板 </head> 前以 <link> 追加加载（只加不改既有样式表），
        纯 CSS 覆盖 + 极简主题切换脚本（nantu-theme.js），无任何表单逻辑。
   双主题：html[data-theme="indigo"]（默认，藏青版）
           html[data-theme="classic"]（传统暖色版）
           全站组件一律消费下方 CSS 变量；切换由 html data-theme 属性驱动。
   ========================================================================== */

/* ── 1. 设计令牌 · 藏青版（默认，取色自水墨底图 hero-orthopedics.png） ────── */
html {
  --nt-primary: #22354A;            /* 藏青（页头/页脚/强区块底） */
  --nt-primary-deep: #16273A;       /* 藏青深 */
  --nt-secondary: #4E7A6A;          /* 青绿（点缀/辅助） */
  --nt-gold: #C9A063;               /* 鎏金（描边/分隔/图标） */
  --nt-gold-weak: rgba(201, 160, 99, 0.45);
  --nt-cta: #B03A2E;                /* 朱砂（CTA/强调） */
  --nt-cta-dark: #8E2E24;
  --nt-paper: #F5F1E8;              /* 宣纸米（页面底色） */
  --nt-paper-rgb: 245, 241, 232;
  --nt-paper-text: #F5F1E8;         /* 深底上的浅色文字 */
  --nt-paper-text-2: #E3DCC8;
  --nt-ink: #26313D;                /* 正文墨色 */
  --nt-ink-2: #4A5561;
  --nt-muted: #8B929A;
  --nt-link: #22354A;               /* 内容链接 */
  --nt-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --nt-sans: ui-sans-serif, system-ui, -apple-system, "PingFang SC",
    "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  /* LOGO 双主题变量（homepage-v3-plan §三：藏青版 = 墨绿底 + 鎏金环 + 宣纸字） */
  --logo-bg: #22354A;             /* 印章底：藏青（v4.1 LOGO 加强版显色，redesign-v3-visual-spec §1.2） */
  --logo-ring: var(--nt-gold);    /* 环带/拼音：鎏金 #C9A063 */
  --logo-text: var(--nt-paper);   /* 印章主字：宣纸 #F5F1E8 */
  --logo-word: var(--nt-paper);   /* 横版中文标准字（导航深底上） */
  --logo-sub: var(--nt-gold);     /* 横版英文/副题：鎏金 */
}

/* ── 1b. 设计令牌 · 传统暖色版（参考 chunqiutangtcm.com.my 暖色专业感） ───── */
html[data-theme="classic"] {
  --nt-primary: #7A5C3E;            /* 暖棕（页头/页脚/强区块底） */
  --nt-primary-deep: #5F4930;
  --nt-secondary: #2F4156;          /* 黛蓝点缀 */
  --nt-gold: #A0522D;               /* 赭石替代鎏金线（描边/分隔/图标） */
  --nt-gold-weak: rgba(160, 82, 45, 0.45);
  --nt-cta: #A0522D;                /* 赭石（CTA/强调） */
  --nt-cta-dark: #83421F;
  --nt-paper: #FAF6EF;              /* 米白（页面底色） */
  --nt-paper-rgb: 250, 246, 239;
  --nt-paper-text: #FAF6EF;
  --nt-paper-text-2: #EFE6D6;
  --nt-ink: #3B322A;
  --nt-ink-2: #5C5248;
  --nt-muted: #94897C;
  --nt-link: #2F4156;               /* 黛蓝链接 */
  /* LOGO 双主题变量（homepage-v3-plan §三：雅棕版 = 暖棕底 + 米白环 + 墨字） */
  --logo-bg: var(--nt-primary);   /* 印章底：暖棕 #7A5C3E */
  --logo-ring: var(--nt-paper);   /* 环带/拼音：米白 #FAF6EF */
  --logo-text: var(--nt-paper);   /* 印章主字：米白 */
  --logo-word: var(--nt-paper); /* 横版中文标准字：米白（v4.1 整改 P2-3：墨字对棕底仅2.31:1，提亮至5.69:1） */
  --logo-sub: var(--nt-primary);  /* 横版英文/副题：暖棕 */
}

/* ── 2. 全局基调：宣纸底 + 宋体标题 + 正文黑体栈 ─────────────────────────── */
body {
  background-color: var(--nt-paper) !important;
  color: var(--nt-ink);
  font-family: var(--nt-sans);
}
h1, h2, h3, h4 {
  font-family: var(--nt-serif);
}
html, body { overflow-x: clip; }
/* 自包含四页内联令牌桥接（--brand/--brand-dark 由四页内联 CSS 消费） */
:root { --brand: var(--nt-cta); --brand-dark: var(--nt-cta-dark); }

/* ── 3. Tailwind 模板页顶栏：主题底色 + 鎏金/赭石下缘；链接浅色 ──────────── */
#header-menu {
  background-color: var(--nt-primary) !important;
  border-bottom: 2px solid var(--nt-gold);
  box-shadow: none;
}
#header-menu ul.sm\:flex a,
#header-menu ul.sm\:flex .text-gray-600,
#header-menu .i-tabler-menu-2,
#header-menu .i-tabler-search {
  color: var(--nt-paper-text) !important;
}
#header-menu ul.sm\:flex a:hover,
#header-menu ul.sm\:flex a.text-gray-600:hover {
  color: var(--nt-gold) !important;
}
/* 下拉子菜单保持白底深字（可读性） */
#header-menu .menu-dropdown a { color: #374151 !important; }
#header-menu .menu-dropdown a:hover { color: var(--nt-cta-dark) !important; }
/* 导航 LOGO（横版 SVG 替换文字 LOGO；v3 改内联 SVG 消费 --logo-* 变量） */
.nt-logo {
  display: inline-block;
  height: 42px;
  width: auto;
  vertical-align: middle;
}
svg.nt-logo { aspect-ratio: 520 / 120; max-width: 100%; }
/* 导航末项（预约）升格为 CTA 按钮 —— 纯视觉，无标记/逻辑改动 */
#header-menu ul.sm\:flex > li:last-child > a {
  background-color: var(--nt-cta);
  color: #FFFFFF !important;
  padding: 6px 14px;
  border-radius: 8px;
  transition: background-color 0.2s ease;
}
#header-menu ul.sm\:flex > li:last-child > a:hover {
  background-color: var(--nt-cta-dark);
  color: #FFFFFF !important;
}

/* ── 3b. 主题切换开关（导航右侧，纯客户端，localStorage 持久化） ─────────── */
.nt-theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 13px;
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--nt-paper-text) !important;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--nt-gold-weak);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
  -webkit-user-select: none;
  user-select: none;
}
.nt-theme-btn:hover {
  border-color: var(--nt-gold);
  background: rgba(255, 255, 255, 0.16);
  color: var(--nt-gold) !important;
}
.nt-theme-btn .nt-theme-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--nt-gold);
  border: 1px solid rgba(255, 255, 255, 0.55);
  flex: none;
}

/* ── 4. 内容卡片：白底 + 金细边；标题宋体 + 金下划线 ─────────────────────── */
.rounded-xl.bg-white,
.rounded-2xl.bg-white {
  border: 1px solid var(--nt-gold-weak);
  box-shadow: 0 1px 4px rgba(34, 53, 74, 0.05);
}
article h1, article h2, article h3 {
  color: var(--nt-ink);
  font-family: var(--nt-serif);
}
article.tailwind-typography h2,
article.markdown-body h2 {
  position: relative;
  padding-bottom: 0.45em;
}
article.tailwind-typography h2::after,
article.markdown-body h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 3.2em;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--nt-gold), var(--nt-gold-weak));
}
article a { color: var(--nt-link); text-decoration-color: var(--nt-gold); }
article a:hover { color: var(--nt-cta); }
article img { max-width: 100%; height: auto; }

/* ── 5. 页脚：主题底色 + 浅色文字 + 金 hover + 主印章 ────────────────────── */
footer.mt-10 {
  background-color: var(--nt-primary) !important;
  border-top: 3px solid var(--nt-gold);
}
footer.mt-10 :is(a, span, p, li, h2) { color: var(--nt-paper-text-2) !important; }
footer.mt-10 a:hover { color: var(--nt-gold) !important; }
footer.mt-10 hr { border-color: var(--nt-gold-weak) !important; }
.nt-footer-seal {
  width: 64px;
  height: 64px;
  display: block;
  margin: 0 0 0 12px;
  align-self: center;
  opacity: 0.96;
}

/* ── 6. 自包含四页（/preconsult /appointment /privacy /consent）
      共用 .nt-* 类：页头主题底色、卡片金边、按钮 CTA 色。
      急症提示条 .nt-alert-bar 维持醒目红色（--danger 未改动）。 ───────────── */
.nt-header {
  background-color: var(--nt-primary) !important;
  border-bottom: 2px solid var(--nt-gold) !important;
}
.nt-header-in {
  flex-wrap: wrap;
  height: auto;
  min-height: 56px;
  padding-top: 5px;
  padding-bottom: 5px;
  row-gap: 2px;
}
.nt-brand {
  color: var(--nt-paper-text) !important;
  font-family: var(--nt-serif);
  font-size: 20px;
  letter-spacing: 1px;
}
.nt-brand .nt-logo { height: 38px; }
.nt-nav a { color: var(--nt-paper-text-2) !important; padding: 8px 9px; }
.nt-nav a:hover {
  background-color: var(--nt-gold-weak) !important;
  color: var(--nt-gold) !important;
}
.nt-card {
  border: 1px solid var(--nt-gold-weak) !important;
  box-shadow: 0 1px 4px rgba(34, 53, 74, 0.06);
}
.nt-card h1, .nt-card h2, fieldset.nt-box legend {
  font-family: var(--nt-serif);
  color: var(--nt-ink);
}
.nt-btn-primary { background-color: var(--nt-cta) !important; }
.nt-btn-primary:hover { background-color: var(--nt-cta-dark) !important; }
.nt-foot { color: var(--nt-ink-2) !important; }
.nt-foot a { color: var(--nt-link) !important; }
.nt-foot a:hover { color: var(--nt-cta) !important; }
.nt-foot-seal {
  display: block;
  width: 52px;
  height: 52px;
  margin: 0 auto 8px;
}
/* 自包含页头部开关按钮与导航并排 */
.nt-header-in .nt-theme-btn { margin-left: 10px; flex: none; }

/* ── 7. v3 新增：案例分享 / 医师团队 图文卡片（服务端渲染，主题变量化） ───── */
.nt-sec { margin: 26px auto 8px; max-width: 72rem; padding: 0 16px; }
.nt-sec-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; margin-bottom: 6px; }
.nt-sec-head h2 {
  margin: 0;
  font-family: var(--nt-serif);
  font-size: 24px;
  letter-spacing: 2px;
  color: var(--nt-ink);
  position: relative;
  padding-bottom: 8px;
}
.nt-sec-head h2::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 3.2em; height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--nt-gold), var(--nt-gold-weak));
}
.nt-sec-head .nt-sec-sub { font-size: 13px; color: var(--nt-ink-2); }
.nt-sec-head .nt-sec-more { margin-left: auto; font-size: 14px; color: var(--nt-link); text-decoration: none; border-bottom: 1px solid var(--nt-gold); padding-bottom: 1px; }
.nt-sec-head .nt-sec-more:hover { color: var(--nt-cta); }
.nt-sec-note {
  margin: 6px 0 16px;
  padding: 9px 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--nt-ink-2);
  background: rgba(var(--nt-paper-rgb), 0.6);
  border: 1px solid var(--nt-gold-weak);
  border-left: 3px solid var(--nt-gold);
  border-radius: 8px;
}
.nt-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.nt-card-item {
  display: flex; flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--nt-gold-weak);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(34, 53, 74, 0.05);
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
  color: inherit; text-decoration: none;
}
.nt-card-item:hover { box-shadow: 0 6px 18px rgba(34, 53, 74, 0.12); transform: translateY(-2px); border-color: var(--nt-gold); color: inherit; }
.nt-card-item .nt-card-cover { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--nt-paper); border-bottom: 1px solid var(--nt-gold-weak); }
.nt-card-item .nt-card-body { display: flex; flex-direction: column; gap: 7px; padding: 14px 16px 16px; }
.nt-card-item h3 {
  margin: 0; font-family: var(--nt-serif); font-size: 17px; line-height: 1.45;
  letter-spacing: 0.5px; color: var(--nt-ink);
}
.nt-card-item:hover h3 { color: var(--nt-cta); }
.nt-card-item .nt-card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 12.5px; color: var(--nt-muted); }
.nt-card-item .nt-card-chip {
  display: inline-block; padding: 1px 9px; font-size: 12px; border-radius: 999px;
  color: var(--nt-paper-text); background: var(--nt-secondary); letter-spacing: 1px;
}
.nt-card-item p.nt-card-excerpt { margin: 0; font-size: 13.5px; line-height: 1.75; color: var(--nt-ink-2); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
/* 医师卡：头像圆章 + 姓名/职称 */
.nt-cards.nt-cards-team { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.nt-team-avatar { position: relative; width: 92px; height: 92px; margin: 20px auto 0; }
.nt-team-avatar img { width: 92px; height: 92px; border-radius: 50%; object-fit: cover; border: 2px solid var(--nt-gold); background: var(--nt-paper); display: block; }
.nt-team-avatar .nt-team-avatar-note {
  position: absolute; left: 50%; bottom: -9px; transform: translateX(-50%);
  white-space: nowrap; font-size: 11px; letter-spacing: 1px;
  color: var(--nt-ink-2); background: var(--nt-paper);
  border: 1px solid var(--nt-gold-weak); border-radius: 999px; padding: 0 8px;
}
.nt-card-item .nt-card-body.nt-team-body { text-align: center; align-items: center; padding-top: 14px; }
/* 首页案例区块底衬（与页面底色融合） */
.nt-home-cases { padding: 10px 0 6px; }

/* ── 8. 移动端适配（≤768px） ─────────────────────────────────────────────── */
@media (max-width: 860px) {
  #header-menu ul.sm\:flex { gap: 1rem; }
  #header-menu ul.sm\:flex a { font-size: 13px; }
}
@media (max-width: 768px) {
  .nt-logo { height: 32px; }
  /* 自包含四页顶栏：纵向堆叠，导航换行可点 */
  .nt-header-in {
    flex-direction: column;
    height: auto;
    padding: 8px 0 10px;
    gap: 4px;
  }
  .nt-header-in .nt-theme-btn { margin-left: 0; }
  .nt-nav { justify-content: center; row-gap: 2px; }
  .nt-nav a { padding: 6px 8px; font-size: 13px; }
  /* 表格横向滚动（内容区与四页卡片内） */
  article table,
  .nt-card table {
    display: block;
    width: max-content;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nt-footer-seal { margin: 8px auto 0; }
  .nt-sec { padding: 0 12px; }
  .nt-cards { grid-template-columns: 1fr; }
  .nt-sec-head h2 { font-size: 20px; }
}
@media (max-width: 480px) {
  .nt-logo { height: 28px; }
  .nt-theme-btn { padding: 3px 9px; font-size: 12px; }
}

/* ── 9. 首页 v3 营销区块（对照 homepage-v3-plan.md §二映射表；
        全部消费既有 --nt-* / --logo-* 变量，色值零新增） ─────────────────────── */
.nt-home-sec { padding: 40px 0 30px; }
/* 宣纸噪点纹理（继承 mockup home-v2.html .tex，data URI 内联，零外链） */
.nt-tex {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="180" height="180"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="2" stitchTiles="stitch"/><feColorMatrix type="saturate" values="0"/><feComponentTransfer><feFuncA type="linear" slope="0.05"/></feComponentTransfer></filter><rect width="180" height="180" filter="url(%23n)"/></svg>');
}
/* 眉题 kicker */
.nt-kicker {
  display: inline-flex; align-items: center; gap: 12px;
  margin: 0; font-size: 13px; font-weight: 600;
  letter-spacing: 0.3em; color: var(--nt-cta);
}
.nt-kicker::before { content: ""; width: 24px; height: 1px; background: var(--nt-gold); }
.nt-kicker-c::before { display: none; }
.nt-h2 {
  margin: 12px 0 0; font-family: var(--nt-serif);
  font-size: 30px; letter-spacing: 0.08em; color: var(--nt-ink);
}

/* ② 关于南陀：左文右图 */
.nt-grid-2 { display: grid; grid-template-columns: 7fr 5fr; gap: 48px; align-items: center; }
.nt-about-txt .nt-lead { margin: 16px 0 0; color: var(--nt-ink); font-size: 15.5px; line-height: 1.9; }
.nt-about-txt .nt-p { margin: 10px 0 0; color: var(--nt-ink-2); font-size: 14px; line-height: 1.9; }
.nt-pillars { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 12px; }
.nt-pillars li {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--nt-gold-weak); border-left: 3px solid var(--nt-gold);
  border-radius: 8px; padding: 12px 16px;
}
.nt-pillars h3 { margin: 0; font-size: 15.5px; letter-spacing: 0.12em; color: var(--nt-primary); }
.nt-pillars p { margin: 6px 0 0; font-size: 13px; line-height: 1.8; color: var(--nt-ink-2); }
.nt-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.nt-chips span {
  border: 1px solid var(--nt-gold-weak); background: rgba(255, 255, 255, 0.8);
  color: var(--nt-primary); font-size: 12.5px; letter-spacing: 0.16em;
  padding: 6px 14px; border-radius: 2px;
}
.nt-about-fig {
  position: relative; margin: 0; min-height: 340px;
  display: flex; justify-content: center; align-items: stretch; gap: 8px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--nt-gold-weak); border-radius: 10px; padding: 26px 22px;
}
.nt-about-fig::before {
  content: ""; position: absolute; inset: 7px;
  border: 1px solid var(--nt-gold-weak); border-radius: 6px; pointer-events: none;
}
.nt-herb-svg { width: 72%; max-width: 240px; height: auto; align-self: center; }
.nt-poem-v {
  writing-mode: vertical-rl; align-self: center; height: 230px;
  display: flex; gap: 10px; padding: 10px 10px 10px 4px;
  border-right: 1px solid var(--nt-gold-weak);
}
.nt-poem-v .nt-poem-main { font-family: var(--nt-serif); font-size: 19px; letter-spacing: 0.3em; color: var(--nt-primary); }
.nt-poem-v .nt-poem-src { font-size: 11.5px; letter-spacing: 0.24em; color: var(--nt-ink-2); }

/* 线描图标公用 */
.nt-ln { fill: none; stroke: var(--nt-secondary); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.nt-fill-gold { fill: var(--nt-gold); }
.nt-fill-cta { fill: var(--nt-cta); stroke: none; }
.nt-ics { fill: none; stroke: var(--nt-secondary); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.nt-ics-g { stroke: var(--nt-gold); }
.nt-iring {
  width: 60px; height: 60px; border-radius: 50%;
  border: 1px solid var(--nt-gold-weak); background: var(--nt-paper);
  box-shadow: inset 0 0 0 4px var(--nt-paper), inset 0 0 0 5px var(--nt-gold-weak);
  display: flex; align-items: center; justify-content: center;
}
.nt-iring svg { width: 36px; height: 36px; }

/* ③ 我们的使命：居中大字 + 鎏金分隔线 */
.nt-mission-in { text-align: center; padding: 14px 16px 4px; }
.nt-mission-line {
  margin: 18px 0 0; font-family: var(--nt-serif); font-weight: 700;
  font-size: clamp(22px, 3.2vw, 34px); letter-spacing: 0.16em;
  color: var(--nt-primary); line-height: 1.55;
}
.nt-mission-line em { font-style: normal; }
.nt-gold-rule {
  width: min(320px, 60%); height: 3px; margin: 22px auto 0; border-radius: 2px;
  background: linear-gradient(90deg, var(--nt-gold-weak), var(--nt-gold), var(--nt-gold-weak));
}

/* ④ 我们的服务：4 图标卡 */
.nt-services { background: #ffffff; border-top: 1px solid var(--nt-gold-weak); border-bottom: 1px solid var(--nt-gold-weak); }
.nt-svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 18px; }
.nt-svc-card {
  position: relative; background: var(--nt-paper);
  border: 1px solid var(--nt-gold-weak); border-radius: 10px; padding: 26px 20px 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.nt-svc-card::before {
  content: ""; position: absolute; inset: 6px;
  border: 1px solid var(--nt-gold-weak); border-radius: 6px; pointer-events: none;
}
.nt-svc-card:hover {
  transform: translateY(-4px); border-color: var(--nt-gold);
  box-shadow: 0 14px 28px rgba(34, 53, 74, 0.1);
}
.nt-svc-card .nt-svc-no {
  position: absolute; top: 12px; right: 14px;
  font-family: var(--nt-serif); font-size: 13px; letter-spacing: 0.1em; color: var(--nt-gold);
}
.nt-svc-card h3 { margin: 16px 0 8px; font-size: 19px; letter-spacing: 0.1em; color: var(--nt-ink); }
.nt-svc-card h3 small {
  display: block; font-family: var(--nt-sans); font-weight: 400;
  font-size: 11.5px; letter-spacing: 0.28em; color: var(--nt-gold); margin-top: 5px;
}
.nt-svc-card p { margin: 0; font-size: 13px; line-height: 1.85; color: var(--nt-ink-2); }

/* ⑤ 五大专注：文图交替行 */
.nt-focus-row {
  display: grid; grid-template-columns: 220px 1fr; gap: 34px; align-items: center;
  margin-top: 26px; padding: 24px 28px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--nt-gold-weak); border-radius: 10px;
}
.nt-focus-row.nt-focus-rev { grid-template-columns: 1fr 220px; }
.nt-focus-row.nt-focus-rev .nt-focus-fig { order: 2; }
.nt-focus-fig {
  position: relative; margin: 0; width: 220px; height: 150px;
  display: flex; align-items: center; justify-content: center;
  background: var(--nt-paper);
  border: 1px solid var(--nt-gold-weak); border-radius: 8px;
}
.nt-focus-fig::after {
  content: ""; position: absolute; inset: 5px;
  border: 1px dashed var(--nt-gold-weak); border-radius: 5px;
}
.nt-focus-fig svg { width: 92px; height: 92px; }
.nt-focus-txt .nt-focus-no { font-family: var(--nt-serif); font-size: 12.5px; letter-spacing: 0.3em; color: var(--nt-gold); }
.nt-focus-txt h3 { margin: 6px 0 8px; font-size: 21px; letter-spacing: 0.1em; color: var(--nt-ink); }
.nt-focus-txt p { margin: 0; max-width: 640px; font-size: 13.8px; line-height: 1.9; color: var(--nt-ink-2); }

/* ⑥ 为什么选择南陀：全页唯一深色中断 */
.nt-why {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--nt-primary), var(--nt-primary-deep));
  border-top: 3px solid var(--nt-gold); border-bottom: 3px solid var(--nt-gold);
}
.nt-why-wm {
  position: absolute; right: -24px; top: 50%; transform: translateY(-50%);
  font-family: var(--nt-serif); font-size: 300px; line-height: 1;
  color: rgba(255, 255, 255, 0.045);
  pointer-events: none; user-select: none;
}
.nt-why .nt-sec { position: relative; }
.nt-sec-head-dark h2 { color: var(--nt-paper-text) !important; }
.nt-sec-head-dark .nt-sec-sub { color: var(--nt-paper-text-2); }
.nt-why-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; margin-top: 26px; }
.nt-why-item { border-left: 1px solid var(--nt-gold-weak); padding: 6px 16px 2px; }
.nt-why-item:first-child { border-left: none; padding-left: 0; }
.nt-iring.nt-iring-dark { background: transparent; box-shadow: inset 0 0 0 4px transparent, inset 0 0 0 5px var(--nt-gold-weak); }
.nt-why-item .nt-ics { stroke: var(--nt-gold); }
.nt-why-item h3 { margin: 16px 0 8px; font-size: 17px; letter-spacing: 0.08em; color: var(--nt-paper-text); }
.nt-why-item h3 small {
  display: block; font-family: var(--nt-sans); font-weight: 400;
  font-size: 11px; letter-spacing: 0.24em; color: var(--nt-gold); margin-top: 5px;
}
.nt-why-item p { margin: 0; font-size: 12.8px; line-height: 1.85; color: var(--nt-paper-text-2); }
.nt-why-note {
  display: flex; align-items: center; gap: 10px;
  margin: 30px 0 0; padding-top: 18px;
  border-top: 1px solid var(--nt-gold-weak);
  font-size: 13px; letter-spacing: 0.08em; color: var(--nt-gold);
}
.nt-why-note::before {
  content: ""; width: 6px; height: 6px; flex: none;
  background: var(--nt-cta); transform: rotate(45deg);
}

/* ⑧ 医师团队（首页网格，白底带） */
.nt-home-team { background: #ffffff; border-top: 1px solid var(--nt-gold-weak); border-bottom: 1px solid var(--nt-gold-weak); }
.nt-home-team .nt-cards { margin-top: 18px; }

/* ⑨ CTA：深色底 + 双按钮 */
.nt-cta { padding: 26px 0 34px; background: linear-gradient(165deg, var(--nt-primary), var(--nt-primary-deep)); }
.nt-cta-in { position: relative; text-align: center; padding: 44px 24px 48px; }
.nt-cta-in::before {
  content: ""; position: absolute; inset: 10px;
  border: 1px solid var(--nt-gold-weak); border-radius: 8px; pointer-events: none;
}
.nt-cta-in > * { position: relative; }
.nt-cta-en { margin: 0; font-size: 11.5px; letter-spacing: 0.4em; color: var(--nt-gold); }
.nt-cta-title {
  margin: 14px 0 0; font-family: var(--nt-serif); font-weight: 700;
  font-size: clamp(26px, 3.6vw, 40px); letter-spacing: 0.18em; color: var(--nt-paper-text);
}
.nt-cta-sub { margin: 12px 0 0; font-size: 14px; letter-spacing: 0.06em; color: var(--nt-paper-text-2); }
.nt-cta-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 28px; }
.nt-cta-btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 34px; border-radius: 8px;
  font-size: 15px; font-weight: 700; letter-spacing: 0.14em; text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.nt-cta-btn-main { background: var(--nt-cta); color: #ffffff; border: 1px solid var(--nt-cta); }
.nt-cta-btn-main:hover { background: var(--nt-cta-dark); border-color: var(--nt-cta-dark); color: #ffffff; }
.nt-cta-btn-ghost { border: 1px solid var(--nt-gold); color: var(--nt-paper-text); background: transparent; }
.nt-cta-btn-ghost:hover { background: var(--nt-gold-weak); color: var(--nt-paper-text); }

/* 首页案例区块（⑦ 移至深色区之后）与深色区的衔接 */
.nt-home-cases { padding: 26px 0 12px; }

/* ── 9b. 首页 v3 移动端（≤768px 单列；汉堡菜单与表格横滚沿用既有规则） ───── */
@media (max-width: 900px) {
  .nt-why-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .nt-why-item { border-left: none; border-top: 1px solid var(--nt-gold-weak); padding: 16px 4px 4px; }
  .nt-why-item:nth-child(-n+2) { border-top: none; padding-top: 6px; }
}
@media (max-width: 768px) {
  .nt-home-sec { padding: 30px 0 22px; }
  .nt-h2 { font-size: 24px; }
  .nt-grid-2 { grid-template-columns: 1fr; gap: 26px; }
  .nt-about-fig { min-height: 0; padding: 20px 16px; }
  .nt-poem-v { height: 190px; }
  .nt-svc-grid { grid-template-columns: 1fr; gap: 16px; }
  .nt-focus-row,
  .nt-focus-row.nt-focus-rev { grid-template-columns: 1fr; gap: 16px; padding: 20px 18px; }
  .nt-focus-row.nt-focus-rev .nt-focus-fig { order: 0; }
  .nt-focus-fig { width: 100%; height: 130px; }
  .nt-why-grid { grid-template-columns: 1fr; gap: 14px; }
  .nt-why-item,
  .nt-why-item:first-child { border-left: none; border-top: 1px solid var(--nt-gold-weak); padding: 14px 2px 2px; }
  .nt-why-item:first-child { border-top: none; padding-top: 4px; }
  .nt-why-wm { font-size: 170px; }
  .nt-mission-line { letter-spacing: 0.08em; }
  .nt-cta-btns { flex-direction: column; align-items: stretch; }
}

/* ── 10. v4 页脚三列（website-redesign-v4-plan.md §3.2：无导航列，业主指令） ── */
/* 页脚深色两档：取自 v3 预览稿已实测色值（对比度 --nt-footer-head 对底 6.89:1/6.81:1） */
html {
  --nt-footer-bg: #141F2C;            /* 页脚深底（藏青墨） */
  --nt-footer-head: var(--nt-gold);   /* 页脚列标题（鎏金 #C9A063） */
}
html[data-theme="classic"] {
  --nt-footer-bg: #4A3826;            /* 页脚深底（暖棕深，v4.1 审查整改 P1-1：黛蓝与暖棕基调断裂） */
  --nt-footer-head: #D8BC8A;          /* 页脚列标题（亮金） */
}
.nt-footer {
  margin-top: 4rem;
  background: var(--nt-footer-bg);
  color: rgba(var(--nt-paper-rgb), 0.82);
  font-family: var(--nt-sans);
}
.nt-footer a { color: rgba(var(--nt-paper-rgb), 0.92); text-decoration: none; }
.nt-footer a:hover { color: var(--nt-footer-head); }
.nt-f-meander { display: block; width: 100%; height: 16px; }
.nt-f-grid {
  max-width: 80rem; margin: 0 auto;
  padding: 3.5rem 1.5rem 2.75rem;
  display: grid; grid-template-columns: 2.2fr 1.7fr 1.2fr; gap: 2.75rem;
}
.nt-f-brand { display: flex; gap: 1.25rem; align-items: flex-start; }
.nt-f-seal { width: 96px; height: 96px; flex: none; }
.nt-f-name { margin: 2px 0 4px; font-family: var(--nt-serif); font-size: 21px; letter-spacing: 0.12em; color: var(--nt-paper-text); }
.nt-f-slogan { margin: 0 0 6px; font-family: var(--nt-serif); font-size: 14px; letter-spacing: 0.22em; color: var(--nt-footer-head); }
.nt-f-en { margin: 0 0 8px; font-size: 10.5px; letter-spacing: 0.18em; color: rgba(var(--nt-paper-rgb), 0.55); }
.nt-f-pos { margin: 0; font-size: 13px; line-height: 1.8; color: rgba(var(--nt-paper-rgb), 0.78); max-width: 26em; }
.nt-f-col p { display: flex; gap: 0.75rem; margin: 0 0 14px; font-size: 13.5px; line-height: 1.85; }
.nt-f-lab {
  flex: none; width: 2.75em; font-family: var(--nt-serif);
  color: var(--nt-footer-head); letter-spacing: 0.2em; font-size: 13px;
}
.nt-f-head {
  margin: 0 0 18px; font-family: var(--nt-serif); font-size: 15px; font-weight: 700;
  letter-spacing: 0.28em; color: var(--nt-footer-head);
  display: flex; align-items: center; gap: 12px;
}
.nt-f-head::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(to right, var(--nt-gold-weak), transparent);
}
.nt-f-rest { color: rgba(var(--nt-paper-rgb), 0.6); font-size: 12.5px; }
.nt-footer a[href^="tel:"] { border-bottom: 1px dotted var(--nt-gold-weak); }
.nt-f-qr-box {
  width: 112px; height: 112px; padding: 10px;
  border: 1.5px dashed var(--nt-gold-weak); border-radius: 6px;
  background: rgba(var(--nt-paper-rgb), 0.04);
}
.nt-f-qr-box svg { width: 100%; height: 100%; display: block; }
.nt-f-qr-tip { margin: 12px 0 4px; font-size: 12.5px; line-height: 1.7; color: rgba(var(--nt-paper-rgb), 0.85); }
.nt-f-qr-cap { margin: 0; font-size: 11px; color: rgba(var(--nt-paper-rgb), 0.5); }
.nt-f-bottom { border-top: 1px solid rgba(var(--nt-paper-rgb), 0.12); }
.nt-f-disc {
  max-width: 80rem; margin: 0 auto; padding: 16px 1.5rem 0;
  font-size: 12px; line-height: 1.8; color: rgba(var(--nt-paper-rgb), 0.6);
}
.nt-f-legal {
  max-width: 80rem; margin: 0 auto; padding: 6px 1.5rem 8px;
  font-size: 12.5px; color: rgba(var(--nt-paper-rgb), 0.72);
}
.nt-f-beian, .nt-f-sitemap { border-bottom: 1px dotted var(--nt-gold-weak); }
.nt-f-halo-addon { margin: 0; padding: 0 1.5rem 22px; text-align: center; font-size: 11px; color: rgba(var(--nt-paper-rgb), 0.45); }
.nt-f-halo-addon:empty { display: none; }
@media (max-width: 768px) {
  .nt-f-grid { grid-template-columns: 1fr; gap: 2rem; padding: 2.5rem 1.25rem 2rem; }
  .nt-f-seal { width: 72px; height: 72px; }
  .nt-f-brand { gap: 1rem; }
  .nt-f-name { font-size: 19px; }
  .nt-f-qr-box { margin: 0 auto; }
  .nt-f-qr { text-align: center; }
  .nt-f-qr-tip, .nt-f-qr-cap { text-align: center; }
}

/* ── 11. v4 /intro 医馆介绍页（website-redesign-v4-plan.md §3.1 八区块） ──── */
.nt-intro-hero { text-align: center; padding: 72px 20px 48px; }
.nt-intro-kicker { font-size: 11px; letter-spacing: 0.34em; color: var(--nt-gold); margin: 0 0 14px; }
.nt-intro-h1 { font-family: var(--nt-serif); font-size: clamp(34px, 5vw, 52px); letter-spacing: 0.16em; color: var(--nt-primary); margin: 0 0 16px; }
html[data-theme="classic"] .nt-intro-h1 { color: var(--nt-ink); }
.nt-intro-pos { font-size: 15px; letter-spacing: 0.1em; color: var(--nt-ink-2); margin: 0; }
.nt-gold-divider { width: 64px; height: 2px; background: linear-gradient(to right, transparent, var(--nt-gold), transparent); margin: 28px auto 0; }
.nt-intro-sec { padding: 46px 0 40px; }
.nt-intro-quote { background: var(--nt-primary); color: var(--nt-paper-text); }
.nt-intro-quote .nt-sec-head h2 { color: var(--nt-paper-text); }
.nt-intro-quote .nt-sec-sub { color: var(--nt-gold); }
.nt-intro-quote-in { max-width: 46rem; }
.nt-intro-quote-mark { font-family: var(--nt-serif); font-size: 56px; line-height: 1; color: var(--nt-gold); opacity: .65; margin: 18px 0 2px; }
.nt-intro-quote-body p { font-family: var(--nt-serif); font-size: 18px; line-height: 2.1; letter-spacing: 0.04em; text-align: center; color: var(--nt-paper-text); }
.nt-intro-quote-body p + p { margin-top: 14px; }
.nt-intro-story-in { max-width: 60rem; }
.nt-intro-story-grid { display: grid; grid-template-columns: 1.45fr 1fr; gap: 2.5rem; align-items: center; }
.nt-intro-story-txt p { font-size: 14.5px; line-height: 2; color: var(--nt-ink-2); }
.nt-intro-story-txt p + p { margin-top: 12px; }
.nt-intro-story-txt strong { color: var(--nt-primary); }
html[data-theme="classic"] .nt-intro-story-txt strong { color: var(--nt-ink); }
.nt-intro-story-fig { margin: 0; padding: 22px; border: 1px solid var(--nt-gold-weak); border-radius: 10px; background: rgba(255, 255, 255, 0.55); }
.nt-intro-story-fig img { width: 100%; height: auto; display: block; }
.nt-intro-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.nt-intro-card { position: relative; background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 10px; padding: 26px 22px 22px; }
.nt-intro-card::before { content: ""; position: absolute; top: 0; left: 22px; right: 22px; height: 2px; background: linear-gradient(to right, var(--nt-gold), transparent); }
.nt-intro-card-no { position: absolute; top: 14px; right: 18px; font-family: var(--nt-serif); font-size: 26px; color: var(--nt-gold); opacity: .35; }
.nt-intro-card h3 { font-size: 18px; letter-spacing: 0.12em; color: var(--nt-primary); margin: 0 0 10px; }
html[data-theme="classic"] .nt-intro-card h3 { color: var(--nt-ink); }
.nt-intro-card p { font-size: 13.5px; line-height: 1.9; color: var(--nt-ink-2); margin: 0; }
.nt-intro-name { background: rgba(var(--nt-paper-rgb), 0.6); }
.nt-intro-name-in { max-width: 46rem; }
.nt-intro-name-body h3 { position: relative; font-family: var(--nt-serif); font-size: 17px; letter-spacing: 0.1em; color: var(--nt-primary); margin: 22px 0 8px; padding-left: 16px; }
html[data-theme="classic"] .nt-intro-name-body h3 { color: var(--nt-ink); }
.nt-intro-name-body h3::before { content: ""; position: absolute; left: 0; top: 4px; bottom: 4px; width: 3px; background: var(--nt-gold); border-radius: 2px; }
.nt-intro-name-body p { font-size: 14.5px; line-height: 2; color: var(--nt-ink-2); }
.nt-values ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.nt-values li { background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 8px; padding: 18px 18px 16px; font-size: 13.5px; line-height: 1.9; color: var(--nt-ink-2); }
.nt-values li strong { display: block; font-family: var(--nt-serif); font-size: 16px; letter-spacing: 0.18em; color: var(--nt-primary); margin-bottom: 6px; }
html[data-theme="classic"] .nt-values li strong { color: var(--nt-ink); }
@media (max-width: 900px) { .nt-intro-cards { grid-template-columns: 1fr; } .nt-values ul { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .nt-intro-hero { padding: 52px 18px 36px; }
  .nt-intro-sec { padding: 34px 0 30px; }
  .nt-intro-story-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .nt-intro-quote-body p { font-size: 16px; }
  .nt-values ul { grid-template-columns: 1fr; }
}

/* ── 12/13. v4 医师团队宣传卡 + 医师详情 Profile（website-redesign-v4-plan.md §3.3/§3.4） ── */
.nt-crumb { font-size: 12.5px; color: var(--nt-muted); margin: 6px 0 14px; display: flex; gap: 8px; align-items: center; }
.nt-crumb a { color: var(--nt-ink-2); text-decoration: none; border-bottom: 1px dotted var(--nt-gold-weak); }
.nt-crumb em { font-style: normal; color: var(--nt-primary); }
html[data-theme="classic"] .nt-crumb em { color: var(--nt-ink); }
.nt-chip { display: inline-block; font-size: 12px; letter-spacing: 0.06em; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--nt-gold-weak); color: var(--nt-ink-2); background: rgba(255, 255, 255, 0.6); }
.nt-chip-cred { border-color: var(--nt-cta); color: var(--nt-cta); }
.nt-doc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-top: 8px; }
.nt-doc-card { display: grid; grid-template-columns: 200px 1fr; gap: 0; background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 12px; overflow: hidden; }
.nt-doc-photo { position: relative; display: block; background: var(--nt-paper); }
.nt-doc-photo img { width: 100%; height: 100%; object-fit: cover; object-position: top; display: block; min-height: 240px; }
.nt-doc-photo-note { position: absolute; left: 8px; bottom: 8px; font-size: 10.5px; padding: 2px 8px; border-radius: 4px; background: rgba(38, 49, 61, 0.72); color: var(--nt-paper-text); letter-spacing: 0.04em; }
.nt-doc-info { padding: 22px 22px 18px; display: flex; flex-direction: column; }
.nt-doc-name { font-family: var(--nt-serif); font-size: 21px; letter-spacing: 0.08em; color: var(--nt-primary); margin: 0 0 12px; }
html[data-theme="classic"] .nt-doc-name { color: var(--nt-ink); }
.nt-doc-name a { color: inherit; text-decoration: none; }
.nt-doc-name a:hover { border-bottom: 2px solid var(--nt-gold); }
.nt-doc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.nt-doc-excerpt { font-size: 13.5px; line-height: 1.9; color: var(--nt-ink-2); margin: 0 0 16px; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.nt-doc-actions { display: flex; gap: 12px; }
.nt-doc-btn { display: inline-flex; align-items: center; justify-content: center; padding: 9px 22px; border-radius: 8px; font-size: 13.5px; font-weight: 700; letter-spacing: 0.1em; text-decoration: none; transition: all 0.2s ease; }
.nt-doc-btn-main { background: var(--nt-cta); color: #fff; border: 1px solid var(--nt-cta); }
.nt-doc-btn-main:hover { background: var(--nt-cta-dark); }
.nt-doc-btn-ghost { border: 1px solid var(--nt-gold); color: var(--nt-primary); }
html[data-theme="classic"] .nt-doc-btn-ghost { color: var(--nt-ink); }
.nt-doc-btn-ghost:hover { background: var(--nt-gold-weak); }
.nt-doc-hero { padding: 40px 0 34px; }
.nt-doc-hero-in { max-width: 62rem; }
.nt-doc-hero-grid { display: grid; grid-template-columns: 280px 1fr; gap: 2.4rem; align-items: start; }
.nt-doc-photo-lg { position: relative; margin: 0; border: 1px solid var(--nt-gold-weak); border-radius: 12px; overflow: hidden; background: var(--nt-paper); }
.nt-doc-photo-lg img { width: 100%; display: block; aspect-ratio: 3 / 4; object-fit: cover; object-position: top; }
.nt-doc-h1 { font-family: var(--nt-serif); font-size: clamp(26px, 3.4vw, 36px); letter-spacing: 0.1em; color: var(--nt-primary); margin: 0 0 10px; }
html[data-theme="classic"] .nt-doc-h1 { color: var(--nt-ink); }
.nt-doc-cred { font-size: 12.5px; color: var(--nt-muted); margin: 0 0 14px; }
.nt-doc-excerpt-lg { font-size: 14.5px; line-height: 2; color: var(--nt-ink-2); margin: 14px 0 20px; }
.nt-doc-body-sec { padding: 20px 0 40px; }
.nt-doc-body { max-width: 48rem; }
.nt-doc-body article { background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 12px; padding: 34px 36px 30px; }
.nt-doc-rel { padding: 40px 0 44px; }
.nt-doc-rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.nt-doc-rel-card { display: flex; flex-direction: column; gap: 10px; background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 10px; padding: 14px; text-decoration: none; text-align: center; }
.nt-doc-rel-card img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; object-position: top; margin: 0 auto; border: 2px solid var(--nt-gold-weak); }
.nt-doc-rel-card span { font-family: var(--nt-serif); font-size: 14.5px; letter-spacing: 0.08em; color: var(--nt-primary); }
html[data-theme="classic"] .nt-doc-rel-card span { color: var(--nt-ink); }
@media (max-width: 900px) { .nt-doc-grid { grid-template-columns: 1fr; } .nt-doc-rel-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .nt-doc-card { grid-template-columns: 1fr; }
  .nt-doc-photo img { min-height: 0; aspect-ratio: 3 / 2; }
  .nt-doc-hero-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  .nt-doc-photo-lg { max-width: 300px; }
  .nt-doc-body article { padding: 22px 18px; }
  .nt-doc-rel-grid { grid-template-columns: 1fr; }
  .nt-doc-actions { flex-direction: column; align-items: stretch; }
}

/* ── 14. v4 全宽文章页(post/page)与文章归档网格(archives)（website-redesign-v4-plan.md §3.5/§3.6） ── */
.nt-art-sec { padding: 26px 0 36px; }
.nt-art { max-width: 48rem; }
.nt-art-h1 { font-family: var(--nt-serif); font-size: clamp(24px, 3.2vw, 34px); letter-spacing: 0.06em; color: var(--nt-primary); margin: 4px 0 8px; }
html[data-theme="classic"] .nt-art-h1 { color: var(--nt-ink); }
.nt-art-date { font-size: 12px; color: var(--nt-muted); margin: 0 0 14px; letter-spacing: 0.04em; }
.nt-art-body { background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 12px; padding: 32px 34px 28px; }
.nt-art-body h2 { position: relative; padding-left: 14px; }
.nt-art-body h2::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 3px; background: var(--nt-gold); border-radius: 2px; }
.nt-art-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.nt-arch { max-width: 64rem; }
.nt-arch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.nt-arch-card { display: flex; flex-direction: column; background: #ffffff; border: 1px solid var(--nt-gold-weak); border-radius: 12px; overflow: hidden; text-decoration: none; transition: box-shadow 0.2s ease, transform 0.2s ease; }
.nt-arch-card:hover { box-shadow: 0 8px 22px rgba(38, 49, 61, 0.12); transform: translateY(-2px); }
.nt-arch-cover { margin: 0; background: var(--nt-paper); aspect-ratio: 16 / 9; overflow: hidden; }
.nt-arch-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nt-arch-info { padding: 16px 18px 14px; display: flex; flex-direction: column; flex: 1; }
.nt-arch-info h3 { font-family: var(--nt-serif); font-size: 16.5px; line-height: 1.6; color: var(--nt-primary); margin: 0 0 6px; }
html[data-theme="classic"] .nt-arch-info h3 { color: var(--nt-ink); }
.nt-arch-date { font-size: 11.5px; color: var(--nt-muted); margin: 0 0 8px; }
.nt-arch-excerpt { font-size: 13px; line-height: 1.85; color: var(--nt-ink-2); margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1; }
@media (max-width: 900px) { .nt-arch-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
  .nt-art-body { padding: 22px 18px; }
  .nt-arch-grid { grid-template-columns: 1fr; }
}

/* ── 15. v4.1 Hero 承托横条 podium（整改②上线，审查报告 P0-2；classic 深色统一暖棕与页脚一致） ── */
html {
  --nt-podium-a: rgba(17, 27, 38, 0.92);   /* 藏青墨半透明（mockup --podium-a） */
  --nt-podium-b: rgba(10, 17, 25, 0.97);
}
html[data-theme="classic"] {
  --nt-podium-a: rgba(74, 56, 38, 0.93);   /* 暖棕深（审查 P1-1：classic 深色不再用黛蓝） */
  --nt-podium-b: rgba(58, 44, 30, 0.97);
}