/* =========================================================
   Proxmox VE 简体中文官网 - 公共样式 common.css
   主题色：#271808 (深棕) / #E57000 (品牌橙)
   ========================================================= */

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #0d0805;
  --color-bg-alt: #1a0f08;
  --color-surface: #271808;
  --color-surface-2: #321e0c;
  --color-border: rgba(229, 112, 0, 0.18);
  --color-border-strong: rgba(229, 112, 0, 0.45);
  --color-primary: #E57000;
  --color-primary-hover: #ff8a1f;
  --color-primary-soft: rgba(229, 112, 0, 0.12);
  --color-text: #f5ece2;
  --color-text-muted: #b8a999;
  --color-text-dim: #8a7a6b;
  --color-success: #2bd576;
  --shadow-glow: 0 0 60px rgba(229, 112, 0, 0.25);
  --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.45);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-xl: 28px;
  --container: 1240px;
  --font-zh: "PingFang SC", "Microsoft YaHei", "微软雅黑", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-en: "Inter", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: clip;
  width: 100%;
}

body {
  font-family: var(--font-en), var(--font-zh);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(1200px 600px at 80% -10%, rgba(229, 112, 0, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(229, 112, 0, 0.08), transparent 60%),
    linear-gradient(180deg, #0d0805 0%, #0a0604 100%);
  background-attachment: fixed;
  overflow-x: clip;
  width: 100%;
  max-width: 100vw;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 移动端禁用 fixed 背景，规避 iOS Safari 错位渲染 */
@media (max-width: 768px) {
  body { background-attachment: scroll; }
}

/* 中英文混排：英文/数字 自动加间距 */
.mix {
  word-spacing: 0.05em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--color-primary-hover); }

img { max-width: 100%; display: block; }

ul, ol { list-style: none; }

/* ---------- 通用容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  box-sizing: border-box;
}
@media (max-width: 560px) {
  .container { padding-left: 18px; padding-right: 18px; }
}

/* 通用响应式两列布局 */
.split-2 {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}
@media (max-width: 880px) {
  .split-2 { grid-template-columns: 1fr; gap: 28px; }
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: linear-gradient(135deg, #ff8a1f 0%, #E57000 60%, #c25a00 100%);
  color: #fff;
  box-shadow: 0 10px 30px rgba(229, 112, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(229, 112, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: rgba(255, 255, 255, 0.12);
}
.btn-ghost:hover {
  color: var(--color-text);
  border-color: rgba(229, 112, 0, 0.5);
  background: rgba(229, 112, 0, 0.06);
}

/* ---------- 通用标题样式 ---------- */
.section-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-zh);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text-muted);
  max-width: 720px;
}
.section-subtitle.center { margin-left: auto; margin-right: auto; }

.section-head-center {
  text-align: center;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   导航栏 Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background: rgba(13, 8, 5, 0.72);
  border-bottom: 1px solid rgba(229, 112, 0, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 18px;
  flex-wrap: nowrap;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  flex-shrink: 0;
}
.nav-brand:hover { color: #fff; }

.nav-brand img {
  height: 38px;
  width: auto;
}

.nav-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav-brand-name {
  font-family: var(--font-zh);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #fff;
}
.nav-brand-by {
  font-size: 11px;
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  white-space: nowrap;
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: 500;
  font-family: var(--font-zh);
  transition: all 0.2s ease;
}
.nav-links a:hover {
  color: #fff;
  background: rgba(229, 112, 0, 0.08);
}
.nav-links a.active { color: var(--color-primary); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ====== 汉堡按钮（带 open ⇄ close 动画） ====== */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(229, 112, 0, 0.08);
  border: 1px solid var(--color-border);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 220;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.3s ease;
}
.nav-toggle:hover { background: rgba(229, 112, 0, 0.18); border-color: rgba(229, 112, 0, 0.45); }
.nav-toggle svg { width: 22px; height: 22px; position: absolute; transition: opacity 0.25s ease, transform 0.35s cubic-bezier(.5,.05,.5,1.5); }
.nav-toggle .icon-close { opacity: 0; transform: rotate(-90deg) scale(0.6); }
.nav-toggle[aria-expanded="true"] { background: rgba(229, 112, 0, 0.22); border-color: rgba(229, 112, 0, 0.55); transform: rotate(180deg); }
.nav-toggle[aria-expanded="true"] .icon-open { opacity: 0; transform: rotate(90deg) scale(0.6); }
.nav-toggle[aria-expanded="true"] .icon-close { opacity: 1; transform: rotate(0deg) scale(1); }

/* ====== 移动端抽屉遮罩 ====== */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(8, 4, 2, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease;
  z-index: 190;
}
.nav-backdrop.is-open { opacity: 1; pointer-events: auto; }

/* ====== 移动端抽屉本体 ====== */
.nav-mobile {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 88vw);
  padding: 0;
  background:
    radial-gradient(600px 320px at 100% 0%, rgba(229,112,0,0.18), transparent 70%),
    radial-gradient(500px 280px at 0% 100%, rgba(229,112,0,0.10), transparent 75%),
    linear-gradient(180deg, rgba(20,12,4,0.98), rgba(13,8,5,0.98));
  border-left: 1px solid rgba(229, 112, 0, 0.22);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: -30px 0 80px rgba(0, 0, 0, 0.55);
  transform: translateX(100%);
  transition: transform 0.42s cubic-bezier(.22,.61,.36,1);
  z-index: 200;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.nav-mobile.is-open { transform: translateX(0); }
.nav-mobile::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(229,112,0,0.18) 1.2px, transparent 1.4px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 25%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 25%, transparent 80%);
  pointer-events: none;
  opacity: 0.6;
  z-index: 0;
}
.nav-mobile-head,
.nav-mobile-list,
.nav-mobile-actions { position: relative; z-index: 1; }

/* 顶部品牌条 */
.nav-mobile-head {
  padding: 22px 22px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-mobile-head img { height: 30px; width: auto; }
.nav-mobile-head .nm-brand-name {
  font-family: var(--font-zh);
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.nav-mobile-head .nm-brand-by {
  font-family: var(--font-en);
  font-size: 10px;
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
  margin-top: 2px;
  display: block;
}

/* 链接列表 */
.nav-mobile-list {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 14px 14px 6px;
  scrollbar-width: thin;
  scrollbar-color: rgba(229,112,0,0.35) transparent;
}
.nav-mobile-list::-webkit-scrollbar { width: 5px; }
.nav-mobile-list::-webkit-scrollbar-thumb { background: rgba(229,112,0,0.3); border-radius: 999px; }

.nav-mobile a {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 14px;
  margin: 4px 0;
  border-radius: 12px;
  color: var(--color-text-muted);
  font-family: var(--font-zh);
  font-size: 15.5px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.22s ease;
  opacity: 0;
  transform: translateX(20px);
}
.nav-mobile.is-open a {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.32s ease, transform 0.32s cubic-bezier(.22,.61,.36,1), background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}
.nav-mobile.is-open a:nth-child(1) { transition-delay: 0.10s; }
.nav-mobile.is-open a:nth-child(2) { transition-delay: 0.13s; }
.nav-mobile.is-open a:nth-child(3) { transition-delay: 0.16s; }
.nav-mobile.is-open a:nth-child(4) { transition-delay: 0.19s; }
.nav-mobile.is-open a:nth-child(5) { transition-delay: 0.22s; }
.nav-mobile.is-open a:nth-child(6) { transition-delay: 0.25s; }
.nav-mobile.is-open a:nth-child(7) { transition-delay: 0.28s; }
.nav-mobile.is-open a:nth-child(8) { transition-delay: 0.31s; }
.nav-mobile.is-open a:nth-child(9) { transition-delay: 0.34s; }

.nav-mobile a .nm-icon {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(229,112,0,0.12), rgba(229,112,0,0.04));
  border: 1px solid rgba(229,112,0,0.18);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  transition: all 0.22s ease;
}
.nav-mobile a .nm-icon svg { width: 18px; height: 18px; }
.nav-mobile a .nm-text { flex: 1; min-width: 0; }
.nav-mobile a .nm-text small {
  display: block;
  font-family: var(--font-en);
  font-size: 10.5px;
  color: var(--color-text-dim);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-top: 2px;
}
.nav-mobile a .nm-chev {
  flex-shrink: 0;
  width: 20px; height: 20px;
  color: var(--color-text-dim);
  opacity: 0.5;
  transition: all 0.22s ease;
}
.nav-mobile a:hover,
.nav-mobile a:focus-visible {
  color: #fff;
  background: linear-gradient(135deg, rgba(229,112,0,0.16), rgba(229,112,0,0.04));
  border-color: rgba(229,112,0,0.35);
}
.nav-mobile a:hover .nm-icon,
.nav-mobile a:focus-visible .nm-icon {
  background: linear-gradient(135deg, rgba(229,112,0,0.4), rgba(229,112,0,0.15));
  border-color: var(--color-primary);
  transform: scale(1.05);
}
.nav-mobile a:hover .nm-chev { opacity: 1; transform: translateX(3px); color: var(--color-primary); }
.nav-mobile a.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(229,112,0,0.28), rgba(229,112,0,0.08));
  border-color: rgba(229,112,0,0.55);
  box-shadow: 0 0 24px rgba(229,112,0,0.18);
}
.nav-mobile a.active .nm-icon {
  background: linear-gradient(135deg, var(--color-primary), #b85800);
  border-color: var(--color-primary);
  color: #fff;
}
.nav-mobile a.active .nm-chev { opacity: 1; color: var(--color-primary); }

/* 底部 CTA 操作区 */
.nav-mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 22px;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.35));
}
.nav-mobile-actions .btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 18px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  border-bottom: none;
}
.nav-mobile-actions .btn svg { width: 18px; height: 18px; }
.nav-mobile-actions a.btn-primary,
.nav-mobile-actions a.btn-primary:hover { color: #fff; background: linear-gradient(135deg, #ff8a1f 0%, #E57000 60%, #c25a00 100%); }
.nav-mobile-actions a.btn-ghost { color: var(--color-text); }
.nav-mobile-actions a.btn-ghost:hover { color: #fff; }

/* 抽屉打开时锁定 body 滚动 */
body.nav-locked { overflow: hidden; }

/* 中等屏幕：先收起 ghost 按钮与副标题，给链接腾位置 */
@media (max-width: 1280px) {
  .nav-actions .btn-ghost { display: none; }
  .nav-brand-by { display: none; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 8px 10px; font-size: 14px; }
}
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .nav-actions .btn-ghost,
  .nav-actions .btn-primary { display: none; }
  .nav-toggle { display: inline-flex; }
}
@media (max-width: 560px) {
  .nav { height: 64px; }
  .nav-brand img { height: 32px; }
  .nav-brand-name { font-size: 15px; }
  .nav-brand-by { font-size: 10px; }
}

/* ============================================================
   页脚 Footer
   ============================================================ */
.site-footer {
  position: relative;
  margin-top: 120px;
  padding: 80px 0 30px;
  background:
    radial-gradient(900px 400px at 50% 0%, rgba(229, 112, 0, 0.14), transparent 70%),
    linear-gradient(180deg, #0a0604 0%, #06030 100%);
  border-top: 1px solid var(--color-border);
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.footer-brand img { height: 44px; }
.footer-brand-name { font-size: 18px; font-weight: 700; color: #fff; font-family: var(--font-zh); }
.footer-brand-name + small { color: var(--color-text-dim); font-size: 12px; display: block; margin-top: 2px; }

.footer-desc {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.85;
  font-family: var(--font-zh);
  max-width: 420px;
}

.footer-reseller-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(229, 112, 0, 0.1);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-zh);
}
.footer-reseller-badge svg { width: 14px; height: 14px; }

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 20px;
  font-family: var(--font-en);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-family: var(--font-zh);
}
.footer-contact-item .icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(229, 112, 0, 0.1);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}
.footer-contact-item .icon svg { width: 16px; height: 16px; }
.footer-contact-item .label { display: block; font-size: 11px; color: var(--color-text-dim); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 2px; }
.footer-contact-item .value { color: #fff; font-weight: 500; }
.footer-contact-item a { color: #fff; }
.footer-contact-item a:hover { color: var(--color-primary); }

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--color-text-dim);
  font-family: var(--font-zh);
}
.footer-bottom .legal { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-bottom .legal a { color: var(--color-text-dim); }
.footer-bottom .legal a:hover { color: var(--color-primary); }

@media (max-width: 880px) {
  .site-footer { margin-top: 80px; padding: 60px 0 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; padding-bottom: 36px; }
  .footer-desc { max-width: 100%; }
}
@media (max-width: 560px) {
  .site-footer { margin-top: 60px; padding: 44px 0 20px; }
  .footer-top { gap: 28px; padding-bottom: 28px; }
  .footer-brand img { height: 36px; }
  .footer-brand-name { font-size: 16px; }
  .footer-desc { font-size: 13px; line-height: 1.8; }
  .footer-col-title { font-size: 12px; margin-bottom: 14px; }
  .footer-contact-item { gap: 10px; margin-bottom: 12px; font-size: 13px; }
  .footer-contact-item .icon { width: 32px; height: 32px; }
  .footer-contact-item .icon svg { width: 14px; height: 14px; }
  .footer-reseller-badge { margin-top: 14px; font-size: 11px; padding: 6px 12px; }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 20px;
    font-size: 12px;
    line-height: 1.7;
  }
  .footer-bottom .legal { gap: 14px; font-size: 12px; }
}

/* ============================================================
   内页通用组件 Page Components
   ============================================================ */

/* 内页 Hero */
.page-hero {
  position: relative;
  padding: 70px 0 50px;
  border-bottom: 1px solid var(--color-border);
  background:
    radial-gradient(800px 300px at 80% 20%, rgba(229,112,0,0.18), transparent 70%),
    radial-gradient(600px 300px at 10% 80%, rgba(229,112,0,0.06), transparent 70%);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  /* 集群节点点阵：以小圆点暗示分布式节点（替代旧的方格线） */
  background-image:
    radial-gradient(rgba(229,112,0,0.22) 1.4px, transparent 1.6px);
  background-size: 30px 30px;
  background-position: 0 0;
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 50%, #000 25%, transparent 80%);
  mask-image: radial-gradient(ellipse 75% 65% at 50% 50%, #000 25%, transparent 80%);
  pointer-events: none;
  opacity: 0.85;
}
/* Hero 变体：集群节点点阵（用于 comparison 等页面） */
.page-hero.hero-cluster {
  background:
    radial-gradient(900px 360px at 78% 18%, rgba(229,112,0,0.22), transparent 70%),
    radial-gradient(700px 320px at 12% 82%, rgba(229,112,0,0.10), transparent 72%),
    radial-gradient(500px 240px at 50% 50%, rgba(255,140,40,0.05), transparent 75%);
}
.page-hero.hero-cluster::before {
  background-image:
    radial-gradient(rgba(229,112,0,0.28) 1.4px, transparent 1.6px);
  background-size: 28px 28px;
  background-position: 0 0;
  mask-image: radial-gradient(ellipse 75% 70% at 50% 50%, #000 25%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 50%, #000 25%, transparent 80%);
  opacity: 0.85;
}
.page-hero.hero-cluster::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(2px 2px at 18% 32%, rgba(229,112,0,0.65), transparent 60%),
    radial-gradient(2px 2px at 82% 28%, rgba(229,112,0,0.55), transparent 60%),
    radial-gradient(2px 2px at 30% 78%, rgba(229,112,0,0.45), transparent 60%),
    radial-gradient(2px 2px at 70% 72%, rgba(229,112,0,0.55), transparent 60%),
    radial-gradient(2px 2px at 50% 18%, rgba(229,112,0,0.45), transparent 60%);
  pointer-events: none;
  filter: blur(0.3px);
}

.page-hero-inner { position: relative; }
.page-eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  border: 1px solid var(--color-border);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 18px;
  font-family: var(--font-en);
}
.page-title {
  font-family: var(--font-zh);
  font-size: clamp(32px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.18;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.page-lead {
  font-family: var(--font-zh);
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-text-muted);
  max-width: 820px;
}
@media (max-width: 560px) {
  .page-hero { padding: 44px 0 32px; }
  .page-title { font-size: 28px; }
  .page-lead { font-size: 14px; line-height: 1.8; }
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-dim);
  font-family: var(--font-zh);
  margin-bottom: 22px;
}
.breadcrumb a { color: var(--color-text-dim); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--color-text); }

/* 内页内容区 Section */
.page-section {
  padding: 70px 0;
}
.page-section + .page-section { padding-top: 0; }
@media (max-width: 720px) { .page-section { padding: 44px 0; } }

/* 富文本 prose */
.prose {
  font-family: var(--font-zh);
  font-size: 16px;
  line-height: 1.95;
  color: var(--color-text);
  max-width: 880px;
}
.prose h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: #fff;
  margin: 56px 0 18px;
  line-height: 1.3;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin: 36px 0 12px;
}
.prose h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 24px 0 10px;
  letter-spacing: 0.02em;
}
.prose p { margin-bottom: 16px; color: var(--color-text-muted); }
.prose strong { color: #fff; }
.prose a { color: var(--color-primary); border-bottom: 1px dashed var(--color-border-strong); }
.prose a:hover { color: var(--color-primary-hover); border-color: var(--color-primary); }
.prose ul, .prose ol { margin: 12px 0 18px 22px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { color: var(--color-text-muted); margin-bottom: 6px; }
.prose li::marker { color: var(--color-primary); }
.prose blockquote {
  margin: 22px 0;
  padding: 18px 24px;
  border-left: 3px solid var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: 0 12px 12px 0;
  color: var(--color-text);
  font-style: italic;
}
.prose code {
  font-family: var(--font-mono);
  background: rgba(229,112,0,0.1);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
  color: var(--color-primary);
}
.prose pre {
  background: linear-gradient(180deg, #1a0f08, #0d0805);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 18px 22px;
  overflow-x: auto;
  margin: 18px 0;
}
.prose pre code { background: none; border: none; padding: 0; color: #f5ece2; }

/* 双列内容 */
.layout-with-toc {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 60px;
  align-items: start;
}
.layout-with-toc .toc {
  position: sticky;
  top: 100px;
  font-family: var(--font-zh);
  font-size: 14px;
  border-left: 1px solid var(--color-border);
  padding: 4px 0 4px 18px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}
.layout-with-toc .toc a {
  display: block;
  color: var(--color-text-dim);
  padding: 6px 0;
  border-bottom: none;
}
.layout-with-toc .toc a:hover,
.layout-with-toc .toc a.active { color: var(--color-primary); }
@media (max-width: 960px) {
  .layout-with-toc { grid-template-columns: 1fr; gap: 28px; }
  .layout-with-toc .toc { position: static; border-left: none; padding-left: 0; max-height: none; display: flex; flex-wrap: wrap; gap: 8px; }
  .layout-with-toc .toc a { padding: 6px 12px; border: 1px solid var(--color-border); border-radius: 999px; font-size: 13px; }
}

/* 规格表 */
.spec-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-family: var(--font-zh);
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  background: rgba(39,24,8,0.3);
}
.spec-table th, .spec-table td {
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(229,112,0,0.08);
  vertical-align: top;
}
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }
.spec-table th {
  width: 36%;
  color: #fff;
  font-weight: 600;
  background: rgba(229,112,0,0.06);
}
.spec-table td { color: var(--color-text-muted); }
.spec-table tr.group-row th {
  background: linear-gradient(90deg, rgba(229,112,0,0.18), transparent);
  color: var(--color-primary);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.spec-table tr.group-row td { background: linear-gradient(90deg, rgba(229,112,0,0.10), transparent); }
@media (max-width: 600px) {
  .spec-table th, .spec-table td { padding: 12px 12px; font-size: 13px; }
  .spec-table th { width: 42%; }
}

/* FAQ 折叠 */
.faq-list { max-width: 920px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  margin-bottom: 14px;
  background: linear-gradient(180deg, rgba(39,24,8,0.5), rgba(39,24,8,0.15));
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.faq-item[open] { border-color: var(--color-border-strong); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: #fff;
  font-family: var(--font-zh);
  font-size: 17px;
  font-weight: 600;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  margin-left: auto;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(229,112,0,0.12);
  border: 1px solid var(--color-border-strong);
  position: relative;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}
.faq-item summary::before {
  content: "";
  position: absolute;
  right: 30px;
  width: 12px; height: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 0 1px transparent;
}
.faq-item summary { position: relative; padding-right: 70px; }
.faq-item summary::before { right: 32px; }
.faq-item:not([open]) summary::before { box-shadow: 0 0 0 0 transparent; }
.faq-item summary span.q-num {
  color: var(--color-primary);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.1em;
}
.faq-item[open] summary::after {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: rotate(45deg);
}
.faq-item .faq-body {
  padding: 0 24px 24px 24px;
  font-family: var(--font-zh);
  color: var(--color-text-muted);
  line-height: 1.95;
}
.faq-item .faq-body p { margin-bottom: 14px; }
.faq-item .faq-body ol,
.faq-item .faq-body ul { margin: 10px 0 14px 22px; }
.faq-item .faq-body li { margin-bottom: 6px; }
.faq-item .faq-body strong { color: #fff; }
.faq-item .faq-body code {
  font-family: var(--font-mono);
  background: rgba(229,112,0,0.1);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
  color: var(--color-primary);
}
@media (max-width: 600px) {
  .faq-item summary { font-size: 15px; padding: 18px 18px; padding-right: 60px; }
  .faq-item summary::before { right: 26px; }
  .faq-item .faq-body { padding: 0 18px 18px; font-size: 14px; }
}

/* 价格卡片 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 1080px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  position: relative;
  padding: 32px 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(39,24,8,0.7), rgba(39,24,8,0.25));
  border: 1px solid var(--color-border);
  display: flex; flex-direction: column;
  transition: all 0.25s ease;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--color-border-strong); box-shadow: 0 30px 60px rgba(0,0,0,0.45); }
.price-card.featured {
  border-color: var(--color-primary);
  background:
    radial-gradient(400px 200px at 50% 0%, rgba(229,112,0,0.25), transparent 70%),
    linear-gradient(180deg, rgba(50,30,12,0.85), rgba(39,24,8,0.4));
  box-shadow: 0 0 60px rgba(229,112,0,0.18);
}
.price-card .badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #E57000, #ff8a1f);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.price-card .plan-name {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.price-card .plan-tag {
  font-family: var(--font-zh);
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}
.price-tier {
  border-top: 1px solid var(--color-border);
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.price-tier-label {
  font-family: var(--font-zh);
  font-size: 13px;
  color: var(--color-text-dim);
}
.price-tier-prices {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.price-tier .now {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}
.price-tier .now::before { content: "¥ "; font-size: 13px; color: var(--color-text-dim); font-weight: 500; }
.price-tier .was { font-size: 13px; color: var(--color-text-dim); text-decoration: line-through; }
.price-tier .btn {
  margin-top: 6px;
  padding: 9px 14px;
  font-size: 13px;
  justify-content: center;
}
.price-card .feature-list {
  margin-top: 22px;
  font-family: var(--font-zh);
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.price-card .feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}
.price-card .feature-list li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}
/* CPU 分段滑块 */
.cpu-switch {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  margin: 4px 0 18px;
  border-radius: 999px;
  background: rgba(13,8,5,0.6);
  border: 1px solid var(--color-border);
}
.cpu-switch::before {
  content: "";
  position: absolute;
  top: 4px; bottom: 4px;
  left: 4px;
  width: calc((100% - 8px) / 3);
  border-radius: 999px;
  background: linear-gradient(135deg, #E57000, #ff8a1f);
  box-shadow: 0 6px 16px rgba(229,112,0,0.45);
  transition: transform 0.28s cubic-bezier(.4,.2,.2,1);
  pointer-events: none;
}
.cpu-switch[data-active="2"]::before { transform: translateX(100%); }
.cpu-switch[data-active="4"]::before { transform: translateX(200%); }
.cpu-switch button {
  position: relative;
  z-index: 1;
  appearance: none;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 8px 0;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease;
}
.cpu-switch button:hover { color: #fff; }
.cpu-switch button[aria-selected="true"] { color: #fff; }

/* 单价格区（替代多个 .price-tier） */
.price-display {
  padding: 18px 0 4px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.price-display .price-tier-label { font-family: var(--font-zh); font-size: 13px; color: var(--color-text-dim); }
.price-display .price-tier-prices { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price-display .now {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  transition: opacity 0.2s ease;
}
.price-display .now::before { content: "¥ "; font-size: 14px; color: var(--color-text-dim); font-weight: 500; }
.price-display .was { font-size: 13px; color: var(--color-text-dim); text-decoration: line-through; }
.price-display .save {
  display: inline-block;
  margin-left: auto;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  border: 1px solid var(--color-border-strong);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-en);
}
.price-display .btn { margin-top: 10px; justify-content: center; padding: 11px 14px; }
.price-display.flash .now { animation: priceFlash 0.35s ease; }
@keyframes priceFlash {
  0% { opacity: 0.3; transform: translateY(-3px); }
  100% { opacity: 1; transform: translateY(0); }
}

.price-card .contact-link {
  margin-top: 18px;
  font-size: 13px;
  text-align: center;
  color: var(--color-text-muted);
}

/* 信息卡片网格 */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.info-card {
  padding: 28px 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(39,24,8,0.5), rgba(39,24,8,0.15));
  border: 1px solid var(--color-border);
  transition: all 0.25s ease;
}
.info-card:hover { transform: translateY(-3px); border-color: var(--color-border-strong); }
.info-card .ic {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(229,112,0,0.25), rgba(229,112,0,0.08));
  border: 1px solid var(--color-border-strong);
  color: var(--color-primary);
  margin-bottom: 18px;
}
.info-card .ic svg { width: 22px; height: 22px; }
.info-card h3 { font-family: var(--font-zh); font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.info-card p { font-family: var(--font-zh); font-size: 14px; line-height: 1.85; color: var(--color-text-muted); }

/* ISO 下载条目 */
.iso-list { display: grid; gap: 16px; max-width: 920px; margin: 0 auto; }
.iso-item {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 22px 26px;
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, rgba(39,24,8,0.7), rgba(39,24,8,0.3));
  border: 1px solid var(--color-border);
  transition: all 0.25s ease;
}
.iso-item:hover { border-color: var(--color-border-strong); transform: translateY(-2px); }
.iso-item .iso-icon {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(229,112,0,0.3), rgba(229,112,0,0.1));
  border: 1px solid var(--color-border-strong);
  color: var(--color-primary);
}
.iso-item .iso-icon svg { width: 28px; height: 28px; }
.iso-item .iso-meta { flex: 1; min-width: 0; }
.iso-item .iso-name { font-family: var(--font-zh); font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.iso-item .iso-sub { font-family: var(--font-en); font-size: 12px; color: var(--color-text-dim); letter-spacing: 0.06em; }
.iso-item .iso-actions { display: flex; gap: 10px; flex-shrink: 0; }
.iso-item .iso-actions .btn { padding: 9px 16px; font-size: 13px; }
@media (max-width: 720px) {
  .iso-item { flex-direction: column; align-items: flex-start; gap: 14px; padding: 18px; }
  .iso-item .iso-actions { width: 100%; }
  .iso-item .iso-actions .btn { flex: 1; justify-content: center; }
}

/* 步骤卡片 */
.step-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}
@media (max-width: 880px) { .step-grid { grid-template-columns: 1fr; } }
.step-card {
  position: relative;
  padding: 36px 28px 28px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(39,24,8,0.6), rgba(39,24,8,0.2));
  border: 1px solid var(--color-border);
}
.step-card::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -16px;
  left: 24px;
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #E57000, #ff8a1f);
  color: #fff;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 10px 26px rgba(229,112,0,0.45);
}
.step-card h3 { font-family: var(--font-zh); font-size: 19px; font-weight: 700; color: #fff; margin: 14px 0 10px; }
.step-card p { font-family: var(--font-zh); font-size: 14px; line-height: 1.85; color: var(--color-text-muted); }
.step-card a { color: var(--color-primary); font-size: 13px; font-weight: 600; }

/* 内容块（白皮书条目） */
.callout {
  padding: 22px 26px;
  border-radius: 14px;
  background: var(--color-primary-soft);
  border: 1px solid var(--color-border-strong);
  font-family: var(--font-zh);
  color: var(--color-text);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.callout .ic {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(229,112,0,0.2);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
}
.callout .ic svg { width: 16px; height: 16px; }
.callout p { margin: 0; font-size: 14px; line-height: 1.8; }
.callout strong { color: #fff; }

/* ---------- 工具类 ---------- */
.text-gradient {
  background: linear-gradient(135deg, #ffb066 0%, #E57000 60%, #ff8a1f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.divider-glow {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
  margin: 80px 0;
}

/* === Help Center / Manual === */
/* Hero 与正文 Section 之间的间距（覆盖各文档页内联的 padding-top:0） */
.page-hero + .page-section { padding-top: 48px !important; }
@media (max-width: 720px) {
  .page-hero + .page-section { padding-top: 32px !important; }
}

/* 自定义细滚动条（仅作用于侧栏，避免影响其他区域） */
.doc-sidebar,
.doc-toc-right {
  scrollbar-width: thin;
  scrollbar-color: rgba(229,112,0,0.35) transparent;
}
.doc-sidebar::-webkit-scrollbar,
.doc-toc-right::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.doc-sidebar::-webkit-scrollbar-track,
.doc-toc-right::-webkit-scrollbar-track {
  background: transparent;
}
.doc-sidebar::-webkit-scrollbar-thumb,
.doc-toc-right::-webkit-scrollbar-thumb {
  background-color: rgba(229,112,0,0.28);
  border-radius: 999px;
  border: 1px solid transparent;
  background-clip: padding-box;
}
.doc-sidebar:hover::-webkit-scrollbar-thumb,
.doc-toc-right:hover::-webkit-scrollbar-thumb {
  background-color: rgba(229,112,0,0.55);
}
.doc-sidebar::-webkit-scrollbar-thumb:hover,
.doc-toc-right::-webkit-scrollbar-thumb:hover {
  background-color: rgba(229,112,0,0.85);
}
.doc-sidebar::-webkit-scrollbar-corner,
.doc-toc-right::-webkit-scrollbar-corner {
  background: transparent;
}

.doc-shell { display: grid; grid-template-columns: 260px minmax(0,1fr) 220px; gap: 36px; align-items: start; }
@media (max-width: 1100px) { .doc-shell { grid-template-columns: 240px minmax(0,1fr); } .doc-shell .doc-toc-right { display: none; } }
@media (max-width: 800px)  { .doc-shell { grid-template-columns: 1fr; } .doc-shell .doc-sidebar { position: static; max-height: none; } }

.doc-sidebar {
  position: sticky; top: 80px; max-height: calc(100vh - 100px); overflow-y: auto;
  padding: 18px 14px; border: 1px solid var(--color-border); border-radius: 14px;
  background: rgba(13,8,5,0.5);
}
.doc-sidebar h4 { font-family: var(--font-en); font-size: 11px; font-weight: 700; letter-spacing: 0.18em; color: var(--color-text-dim); margin: 4px 6px 10px; text-transform: uppercase; }
.doc-sidebar ol { list-style: none; padding: 0; margin: 0 0 14px; counter-reset: ch; }
.doc-sidebar ol li { counter-increment: ch; }
.doc-sidebar ol li a {
  display: flex; align-items: baseline; gap: 8px;
  padding: 7px 10px; border-radius: 8px;
  font-family: var(--font-zh); font-size: 13.5px; line-height: 1.5;
  color: var(--color-text-muted); text-decoration: none;
  transition: all 0.18s ease;
}
.doc-sidebar ol li a::before {
  content: counter(ch); flex-shrink: 0;
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  color: var(--color-text-dim); min-width: 20px;
}
.doc-sidebar ol li a:hover { background: rgba(229,112,0,0.08); color: #fff; }
.doc-sidebar ol li a.active { background: var(--color-primary-soft); color: var(--color-primary); }
.doc-sidebar ol li a.active::before { color: var(--color-primary); }

.doc-toc-right {
  position: sticky; top: 80px; max-height: calc(100vh - 100px); overflow-y: auto;
  padding: 14px 12px; font-family: var(--font-zh); font-size: 13px; line-height: 1.7;
  border-left: 1px solid var(--color-border);
}
.doc-toc-right h4 { font-family: var(--font-en); font-size: 10.5px; font-weight: 700; letter-spacing: 0.16em; color: var(--color-text-dim); text-transform: uppercase; margin-bottom: 10px; }
.doc-toc-right a { display: block; padding: 4px 8px; color: var(--color-text-dim); text-decoration: none; border-left: 2px solid transparent; margin-left: -10px; transition: all 0.15s ease; }
.doc-toc-right a:hover { color: #fff; }
.doc-toc-right a.active { color: var(--color-primary); border-left-color: var(--color-primary); }
.doc-toc-right a.lvl-3 { padding-left: 22px; font-size: 12px; }

.doc-content { min-width: 0; }
.doc-content h2 { font-family: var(--font-zh); font-size: 32px; font-weight: 800; color: var(--color-text-muted); margin: 0 0 6px; }
.doc-content h2 .num { color: var(--color-primary); margin-right: 12px; font-family: var(--font-en); }
.doc-content h2 .en { display: block; font-family: var(--font-en); font-size: 16px; font-weight: 500; color: var(--color-text-dim); margin-top: 6px; letter-spacing: 0.02em; }
.doc-content h3 { font-family: var(--font-zh); font-size: 22px; font-weight: 700; color: var(--color-text-muted); margin: 50px 0 12px; padding-top: 12px; border-top: 1px solid var(--color-border); scroll-margin-top: 90px; }
.doc-content h3 .num { font-family: var(--font-en); color: var(--color-primary); margin-right: 10px; font-weight: 800; }
.doc-content h3 .en { display: block; font-family: var(--font-en); font-size: 13px; font-weight: 500; color: var(--color-text-dim); margin-top: 4px; }
.doc-content h4 { font-family: var(--font-zh); font-size: 18px; font-weight: 700; color: var(--color-text-muted); margin: 36px 0 10px; scroll-margin-top: 90px; }
.doc-content h4 .num { font-family: var(--font-en); color: var(--color-primary); margin-right: 8px; font-size: 14px; font-weight: 800; }
.doc-content h4 .en { display: block; font-family: var(--font-en); font-size: 12.5px; font-weight: 500; color: var(--color-text-dim); margin-top: 2px; }
.doc-content h5 { font-family: var(--font-zh); font-size: 15.5px; font-weight: 700; color: var(--color-text-muted); margin: 26px 0 10px; }
.doc-content h6 { font-family: var(--font-zh); font-size: 14px; font-weight: 700; color: var(--color-text-muted); margin: 20px 0 8px; text-transform: uppercase; letter-spacing: 0.04em; }

.doc-content p, .doc-content li { font-family: var(--font-zh); font-size: 15px; line-height: 1.95; color: var(--color-text-muted); }
.doc-content strong { color: var(--color-text-muted); font-weight: 700; }
.doc-content em { color: var(--color-text-muted); }
.doc-content p { margin: 0 0 14px; }
.doc-content ul, .doc-content ol { margin: 0 0 16px; padding-left: 26px; }
.doc-content ul li, .doc-content ol li { margin-bottom: 6px; }
.doc-content a { color: var(--color-primary); text-decoration: none; border-bottom: 1px dashed rgba(229,112,0,0.4); }
.doc-content a:hover { border-bottom-style: solid; }
.doc-content code, .doc-content .mono {
  font-family: var(--font-mono); font-size: 0.92em;
  background: rgba(229,112,0,0.1);
  border: 1px solid var(--color-border);
  border-radius: 5px; padding: 1px 7px; color: var(--color-primary);
}
.doc-content pre {
  background: linear-gradient(180deg, #1a0f08, #0d0805);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px 20px; margin: 16px 0;
  overflow-x: auto;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
  color: #f5ece2;
}
.doc-content pre code { background: none; border: none; padding: 0; color: inherit; }
.doc-content figure { margin: 22px 0; text-align: center; }
.doc-content figure img { max-width: 100%; height: auto; border-radius: 10px; border: 1px solid var(--color-border); background: #fff; }
.doc-content figure figcaption { font-family: var(--font-zh); font-size: 13px; color: var(--color-text-dim); margin-top: 10px; }

/* 定义列表 dt/dd */
.doc-content dl { margin: 16px 0; }
.doc-content dt { font-family: var(--font-zh); font-size: 16px; font-weight: 700; color: var(--color-text-muted); margin: 18px 0 6px; }
.doc-content dt .en { display: inline; font-family: var(--font-en); font-size: 13px; color: var(--color-text-dim); margin-left: 8px; font-weight: 500; }
.doc-content dd { margin: 0 0 10px 0; padding-left: 16px; border-left: 2px solid var(--color-border); }
.doc-content dd p { margin-bottom: 10px; }

/* 告示框 admonition */
.doc-content .admon {
  display: grid; grid-template-columns: 56px 1fr;
  margin: 18px 0; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--color-border);
  background: rgba(13,8,5,0.4);
}
.doc-content .admon .admon-icon {
  display: flex; align-items: flex-start; justify-content: center;
  padding: 16px 0; font-family: var(--font-en); font-size: 11px; font-weight: 800;
  letter-spacing: 0.14em; color: #fff; writing-mode: horizontal-tb;
}
.doc-content .admon .admon-body { padding: 14px 18px 4px; }
.doc-content .admon .admon-body p:last-child { margin-bottom: 10px; }
.doc-content .admon-note     { border-color: rgba(56,139,253,0.35); }
.doc-content .admon-note     .admon-icon { background: linear-gradient(135deg, #2a5d9f, #1d4178); }
.doc-content .admon-tip      { border-color: rgba(46,160,67,0.4); }
.doc-content .admon-tip      .admon-icon { background: linear-gradient(135deg, #2ea043, #1a7032); }
.doc-content .admon-warning  { border-color: rgba(212,143,0,0.45); }
.doc-content .admon-warning  .admon-icon { background: linear-gradient(135deg, #d48f00, #8b5e00); }
.doc-content .admon-caution  { border-color: rgba(218,54,51,0.45); }
.doc-content .admon-caution  .admon-icon { background: linear-gradient(135deg, #da3633, #91201d); }
.doc-content .admon-important{ border-color: rgba(229,112,0,0.5); }
.doc-content .admon-important .admon-icon { background: linear-gradient(135deg, #E57000, #b85800); }

/* 章节翻页 */
.doc-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 60px 0 0; }
.doc-pager a {
  display: block; padding: 18px 22px; border-radius: 12px;
  border: 1px solid var(--color-border); background: rgba(13,8,5,0.4);
  text-decoration: none; transition: all 0.2s ease;
}
.doc-pager a:hover { border-color: var(--color-border-strong); background: rgba(229,112,0,0.06); }
.doc-pager .pager-label { display: block; font-family: var(--font-en); font-size: 11px; letter-spacing: 0.16em; color: var(--color-text-dim); text-transform: uppercase; margin-bottom: 6px; }
.doc-pager .pager-title { display: block; font-family: var(--font-zh); font-size: 15px; color: #fff; font-weight: 600; }
.doc-pager .pager-prev { text-align: left; }
.doc-pager .pager-next { text-align: right; }
.doc-pager .pager-prev::before { content: "← "; color: var(--color-primary); }
.doc-pager .pager-next::after  { content: " →"; color: var(--color-primary); }
@media (max-width: 600px) { .doc-pager { grid-template-columns: 1fr; } }

/* 帮助中心首页 章节卡片 */
.docs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.docs-card {
  display: block; padding: 22px 22px 20px; border-radius: 14px;
  border: 1px solid var(--color-border); background: linear-gradient(160deg, rgba(39,24,8,0.6), rgba(39,24,8,0.25));
  text-decoration: none; transition: all 0.25s ease;
  position: relative; overflow: hidden;
}
.docs-card:hover { transform: translateY(-3px); border-color: var(--color-border-strong); box-shadow: 0 14px 30px -12px rgba(0,0,0,0.6); }
.docs-card .docs-num { font-family: var(--font-en); font-size: 11px; font-weight: 700; letter-spacing: 0.18em; color: var(--color-primary); }
.docs-card .docs-title-zh { display: block; font-family: var(--font-zh); font-size: 17px; font-weight: 700; color: #fff; margin: 10px 0 4px; }
.docs-card .docs-title-en { display: block; font-family: var(--font-en); font-size: 12.5px; color: var(--color-text-dim); }
.docs-card .docs-desc { font-family: var(--font-zh); font-size: 13px; line-height: 1.7; color: var(--color-text-muted); margin-top: 12px; }
.docs-card[data-status="todo"] { opacity: 0.55; }
.docs-card[data-status="todo"]::after {
  content: "待译"; position: absolute; top: 16px; right: 16px;
  padding: 2px 8px; border-radius: 999px;
  font-family: var(--font-en); font-size: 10px; letter-spacing: 0.1em;
  background: rgba(255,255,255,0.08); color: var(--color-text-dim);
  border: 1px solid var(--color-border);
}


/* =========================================================
   产品下拉菜单 - Products Dropdown (PC & Mobile)
   ========================================================= */
.nav-links .nav-has-sub { position: relative; }
.nav-links .nav-has-sub > .nav-trigger {
  display: inline-flex; align-items: center; gap: 4px; cursor: pointer; user-select: none;
}
.nav-links .nav-has-sub > .nav-trigger::after {
  content: ""; width: 8px; height: 8px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px); transition: transform 0.2s ease; opacity: 0.7;
}
.nav-links .nav-has-sub:hover > .nav-trigger::after,
.nav-links .nav-has-sub.is-open > .nav-trigger::after { transform: rotate(225deg) translate(-2px, -2px); }
.nav-sub {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(6px);
  min-width: 260px; padding: 8px;
  background: linear-gradient(160deg, rgba(28,18,10,0.98), rgba(18,11,6,0.98));
  border: 1px solid var(--color-border-strong); border-radius: 14px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.02) inset;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  opacity: 0; visibility: hidden; transition: all 0.2s ease; z-index: 100;
}
.nav-links .nav-has-sub:hover > .nav-sub,
.nav-links .nav-has-sub.is-open > .nav-sub {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav-sub::before {
  content: ""; position: absolute; top: -6px; left: 50%; transform: translateX(-50%) rotate(45deg);
  width: 12px; height: 12px;
  background: linear-gradient(160deg, rgba(28,18,10,0.98), rgba(18,11,6,0.98));
  border-left: 1px solid var(--color-border-strong); border-top: 1px solid var(--color-border-strong);
}
.nav-sub a {
  display: flex !important; align-items: center; gap: 12px; padding: 10px 12px !important;
  border-radius: 10px; font-size: 14px; line-height: 1.3; color: var(--color-text) !important;
  transition: background 0.15s ease;
}
.nav-sub a:hover { background: rgba(229,112,0,0.12); color: #fff !important; }
.nav-sub a.is-current { background: rgba(229,112,0,0.18); color: #fff !important; cursor: default; }
.nav-sub-icon {
  flex: 0 0 32px; width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, rgba(229,112,0,0.22), rgba(229,112,0,0.06));
  display: flex; align-items: center; justify-content: center; color: var(--color-primary);
}
.nav-sub-icon svg { width: 18px; height: 18px; }
.nav-sub-text { display: flex; flex-direction: column; min-width: 0; }
.nav-sub-text strong { font-weight: 700; font-family: var(--font-zh); }
.nav-sub-text small { color: var(--color-text-dim); font-size: 11px; margin-top: 2px; font-family: var(--font-en); letter-spacing: 0.02em; }
.nav-sub a.is-current .nav-sub-text small::after { content: " · 当前站点"; color: var(--color-primary); }

/* Mobile drawer 分组标题 */
.nm-group-title {
  padding: 18px 4px 6px; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-text-dim); font-family: var(--font-en); font-weight: 700;
}