/*
Theme Name: AO3 导航落地页
Theme URI: https://ao3bg.cn/
Author: ao3bg.cn
Description: AO3 同人归档导航落地页主题。自带首屏筛选入口、核心功能、筛选维度、界面预览、下载安装、常见问题与关于我们等板块，并包含博客文章列表、文章页、页面与 404 模板，既可作为单页落地页，也可当作完整博客主题使用。
Version: 1.0.2
Requires at least: 5.6
Tested up to: 6.7
Requires PHP: 7.0
Text Domain: ao3-landing
Tags: blog, one-column, custom-logo, custom-colors, featured-images, translation-ready
*/
/* ================================================
   AO3 导航落地页 - 主样式表
   配色：酒红 / 米白 / 暖金
   断点：480px 手机 / 768px 平板 / 1200px 桌面
   ================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --bg-0: #140a0d;
  --bg-1: #1d0f13;
  --bg-2: #27151a;
  --cream: #fdf7ed;
  --cream-2: #f5ebdb;

  --red: #b2171d;
  --red-hi: #d63330;
  --maroon: #7c1015;
  --gold: #d9aa55;
  --gold-soft: #e8c888;

  --text: #f5ebe1;
  --text-dim: #d6c3bd;
  --muted: #a8908d;

  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(217, 170, 85, 0.25);

  --font-heading: "Songti SC", "STSong", Georgia, "Times New Roman", "PingFang SC", "Microsoft YaHei", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", system-ui, sans-serif;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 88px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 22px 60px rgba(0, 0, 0, 0.38);

  --t-fast: 0.2s ease;
  --t-normal: 0.3s ease;

  --max-width: 1200px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg-0);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

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

ul {
  list-style: none;
}

svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

::selection {
  background: var(--red);
  color: #fff;
}

/* ---------- 通用布局 ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  position: relative;
  padding: var(--space-xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-label {
  display: inline-block;
  padding: 3px 16px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--gold);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-full);
  background: rgba(217, 170, 85, 0.06);
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 1px;
  color: var(--text);
}

.section-desc {
  max-width: 620px;
  margin: 12px auto 0;
  font-size: 1.05rem;
  color: var(--muted);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 168px;
  padding: 14px 30px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  transition: transform var(--t-fast), box-shadow var(--t-normal), background var(--t-normal), color var(--t-normal);
}

.btn svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
  box-shadow: 0 12px 30px rgba(178, 23, 29, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(178, 23, 29, 0.45);
}

.btn-outline {
  color: var(--text);
  border-color: rgba(217, 170, 85, 0.45);
  background: rgba(255, 255, 255, 0.02);
}

.btn-outline:hover {
  color: var(--gold-soft);
  border-color: var(--gold);
  background: rgba(217, 170, 85, 0.08);
  transform: translateY(-3px);
}

/* ---------- 标签胶囊（筛选面板用） ---------- */
.chip {
  display: inline-block;
  padding: 5px 14px;
  font-size: 0.82rem;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--maroon);
  background: var(--cream-2);
  border: 1px solid rgba(124, 16, 21, 0.12);
  border-radius: var(--radius-full);
}

.chip-on {
  color: #fff;
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
  border-color: transparent;
}
/* ================================================
   导航栏
   ================================================ */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(20, 10, 13, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
}

.navbar.scrolled {
  background: rgba(20, 10, 13, 0.96);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  height: 100%;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1002;
}

.navbar-logo img {
  width: 42px;
  height: 42px;
  padding: 3px;
  border-radius: 10px;
  background: var(--cream);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.navbar-logo-text {
  display: flex;
  flex-direction: column;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 1px;
  color: var(--text);
}

.navbar-logo-text small {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--gold);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-menu li a {
  display: block;
  padding: 8px 14px;
  font-size: 0.95rem;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  transition: color var(--t-fast), background var(--t-fast);
}

.nav-menu li a:hover {
  color: var(--gold-soft);
  background: rgba(217, 170, 85, 0.08);
}

.nav-cta {
  padding: 10px 22px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
  box-shadow: 0 8px 22px rgba(178, 23, 29, 0.32);
  transition: transform var(--t-fast), box-shadow var(--t-normal);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(178, 23, 29, 0.42);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  z-index: 1002;
}

.nav-toggle i,
.nav-toggle i::before,
.nav-toggle i::after {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform var(--t-normal), opacity var(--t-fast);
}

.nav-toggle i {
  position: relative;
  margin: 0 auto;
}

.nav-toggle i::before,
.nav-toggle i::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle i::before { top: -7px; }
.nav-toggle i::after { top: 7px; }

.nav-toggle.active i { background: transparent; }
.nav-toggle.active i::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active i::after { transform: translateY(-7px) rotate(-45deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 998;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-normal), visibility var(--t-normal);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ================================================
   主视觉区 Hero
   ================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 12% 8%, rgba(178, 23, 29, 0.35), transparent 65%),
    radial-gradient(760px 480px at 88% 18%, rgba(217, 170, 85, 0.16), transparent 62%),
    radial-gradient(700px 600px at 50% 110%, rgba(124, 16, 21, 0.5), transparent 70%),
    linear-gradient(180deg, var(--bg-0), var(--bg-1) 55%, var(--bg-0));
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.5;
  mask-image: radial-gradient(circle at 50% 40%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000, transparent 72%);
}

.hero-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
}

.hero-lines span {
  position: absolute;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217, 170, 85, 0.5), transparent);
}

.hero-lines span:nth-child(1) { top: 22%; left: -10%; width: 46%; transform: rotate(-16deg); }
.hero-lines span:nth-child(2) { top: 38%; right: -12%; width: 52%; transform: rotate(14deg); }
.hero-lines span:nth-child(3) { bottom: 26%; left: -8%; width: 40%; transform: rotate(12deg); }
.hero-lines span:nth-child(4) { bottom: 14%; right: -6%; width: 34%; transform: rotate(-10deg); }

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 960px;
  padding: calc(var(--nav-height) + 20px) var(--space-md) 88px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 20px;
  margin-bottom: var(--space-md);
  font-size: 0.88rem;
  color: var(--gold-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-full);
  background: rgba(217, 170, 85, 0.07);
}

.hero-badge i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red-hi);
  box-shadow: 0 0 0 4px rgba(214, 51, 48, 0.18);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(214, 51, 48, 0.18); }
  50% { box-shadow: 0 0 0 8px rgba(214, 51, 48, 0.05); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 1px;
  color: var(--text);
  text-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.hero-title .highlight {
  position: relative;
  display: inline-block;
  background: linear-gradient(120deg, var(--gold-soft), var(--red-hi) 60%, var(--maroon));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin-top: 24px;
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}
.hero-scroll {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  letter-spacing: 2px;
  color: var(--muted);
}

.hero-scroll i {
  width: 1px;
  height: 34px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollDown 1.8s infinite;
}

@keyframes scrollDown {
  0% { opacity: 0; transform: translateY(-8px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ================================================
   核心功能
   ================================================ */
.features {
  background: linear-gradient(180deg, var(--bg-0), var(--bg-1));
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  position: relative;
  padding: 32px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--red-hi), var(--gold));
  opacity: 0;
  transition: opacity var(--t-normal);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 54px;
  height: 54px;
  padding: 13px;
  margin-bottom: 20px;
  color: var(--gold-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(217, 170, 85, 0.07);
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 1.16rem;
  font-weight: 600;
  color: var(--text);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--muted);
}

/* ================================================
   筛选维度
   ================================================ */
.filter {
  background:
    radial-gradient(700px 420px at 85% 10%, rgba(178, 23, 29, 0.18), transparent 65%),
    var(--bg-1);
}

.filter-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-xl);
  align-items: start;
}

.filter-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md) var(--space-md);
}

.filter-item {
  display: flex;
  gap: 14px;
}

.filter-num {
  flex: 0 0 auto;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--gold);
  opacity: 0.55;
}

.filter-item h3 {
  margin-bottom: 6px;
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--text);
}

.filter-item p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 筛选面板示意 */
.filter-card {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
  padding: 26px;
  border-radius: var(--radius-lg);
  background: var(--cream);
  box-shadow: var(--shadow-lg);
}

.filter-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(124, 16, 21, 0.12);
}

.filter-card-head span {
  font-family: var(--font-heading);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--maroon);
}

.filter-card-head b {
  padding: 5px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
}

.filter-group { margin-bottom: 18px; }

.filter-group em {
  display: block;
  margin-bottom: 9px;
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #a08b84;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.filter-range {
  position: relative;
  height: 6px;
  margin: 14px 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(124, 16, 21, 0.12);
}

.filter-range span {
  position: absolute;
  top: -5px;
  left: 22%;
  width: 46%;
  height: 16px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--red-hi), var(--maroon));
  box-shadow: 0 4px 12px rgba(178, 23, 29, 0.28);
}

.filter-range span::before,
.filter-range span::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  border: 2px solid var(--maroon);
  border-radius: 50%;
  background: #fff;
  transform: translateY(-50%);
}

.filter-range span::before { left: -3px; }
.filter-range span::after { right: -3px; }

.filter-range-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: #a08b84;
}

.filter-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
  margin-top: 4px;
  border-top: 1px solid rgba(124, 16, 21, 0.12);
}

.filter-reset {
  font-size: 0.9rem;
  color: #8d7a73;
}

.filter-submit {
  padding: 11px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
  box-shadow: 0 10px 24px rgba(178, 23, 29, 0.3);
}

/* ================================================
   界面预览
   ================================================ */
.screenshots {
  background: linear-gradient(180deg, var(--bg-1), var(--bg-0));
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.screenshot-item {
  margin: 0;
  text-align: center;
}

.phone {
  position: relative;
  padding: 8px;
  border-radius: 26px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow-md);
  cursor: zoom-in;
  transition: transform var(--t-normal), box-shadow var(--t-normal);
}

.phone::before {
  content: "";
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 46px;
  height: 4px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.28);
  z-index: 2;
}

.phone img {
  width: 100%;
  border-radius: 20px;
}

.screenshot-item:hover .phone {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.screenshot-item figcaption {
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--muted);
}

/* 截图模态框 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  background: rgba(10, 5, 7, 0.9);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-normal), visibility var(--t-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 100%;
}

.modal-content img {
  max-height: 68vh;
  width: auto;
  margin: 0 auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: -14px;
  right: -14px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-2);
  cursor: pointer;
  transition: background var(--t-fast);
}

.modal-close i,
.modal-close i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  content: "";
}

.modal-close i { transform: translate(-50%, -50%) rotate(45deg); }
.modal-close i::after { transform: translate(-50%, -50%) rotate(90deg); left: 0; top: 0; }

.modal-close:hover { background: var(--maroon); }

.modal-nav {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: 20px;
}

.modal-prev,
.modal-next {
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(38, 20, 26, 0.9);
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
}

.modal-prev:hover,
.modal-next:hover {
  background: var(--maroon);
  transform: translateY(-2px);
}

.modal-prev i,
.modal-next i {
  display: block;
  width: 10px;
  height: 10px;
  margin: 0 auto;
  border-left: 2px solid var(--text);
  border-bottom: 2px solid var(--text);
}

.modal-prev i { transform: rotate(45deg); }
.modal-next i { transform: rotate(-135deg); }
/* ================================================
   下载安装
   ================================================ */
.download {
  background:
    radial-gradient(760px 420px at 15% 0%, rgba(217, 170, 85, 0.12), transparent 62%),
    var(--bg-0);
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 34px 24px 30px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
}

.download-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.download-card-icon {
  width: 64px;
  height: 64px;
  padding: 16px;
  margin-bottom: 20px;
  border-radius: 50%;
  color: var(--gold-soft);
  border: 1px solid var(--line-strong);
  background: rgba(217, 170, 85, 0.08);
}

.download-card.android .download-card-icon { color: #7ddc9a; }
.download-card.quark .download-card-icon { color: var(--gold-soft); }
.download-card.ios .download-card-icon { color: #cbb8ff; }

.download-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}

.download-card .version {
  margin-top: 6px;
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 1px;
  color: var(--gold);
}

.download-card .size {
  margin: 4px 0 22px;
  font-size: 0.88rem;
  color: var(--muted);
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 30px;
  font-size: 0.94rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
  box-shadow: 0 10px 26px rgba(178, 23, 29, 0.32);
  transition: transform var(--t-fast), box-shadow var(--t-normal);
}

.btn-download svg {
  width: 17px;
  height: 17px;
}

.btn-download:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(178, 23, 29, 0.42);
}

.download-tip {
  max-width: 760px;
  margin: var(--space-lg) auto 0;
  padding: 16px 22px;
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--muted);
  text-align: center;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(217, 170, 85, 0.04);
}

/* ================================================
   常见问题
   ================================================ */
.faq {
  background: linear-gradient(180deg, var(--bg-0), var(--bg-1));
}

.faq-list {
  max-width: 880px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color var(--t-normal), background var(--t-normal);
}

.faq-item[open] {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
}

.faq-item summary {
  position: relative;
  padding: 18px 56px 18px 22px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 24px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--t-normal);
}

.faq-item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.faq-answer {
  padding: 0 22px 20px;
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--muted);
}

/* ================================================
   关于本站
   ================================================ */
.about {
  background:
    radial-gradient(700px 420px at 80% 20%, rgba(178, 23, 29, 0.2), transparent 65%),
    var(--bg-1);
}

.about-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-text h3 {
  margin-bottom: 16px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--text);
}

.about-text p {
  margin-bottom: 14px;
  font-size: 0.98rem;
  color: var(--muted);
}

.about-stats {
  display: grid;
  gap: var(--space-sm);
}

.about-stat {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 1px;
  color: var(--gold);
}

.stat-label {
  font-size: 0.88rem;
  color: var(--muted);
}

/* ================================================
   底部
   ================================================ */
.footer {
  padding: var(--space-lg) 0 34px;
  border-top: 1px solid var(--line);
  background: #0f0608;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--line);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--text);
}

.footer-brand img {
  width: 40px;
  height: 40px;
  padding: 3px;
  border-radius: 10px;
  background: var(--cream);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}

.footer-links a {
  font-size: 0.92rem;
  color: var(--muted);
  transition: color var(--t-fast);
}

.footer-links a:hover { color: var(--gold); }

.footer-bottom {
  padding-top: var(--space-md);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.84rem;
  line-height: 1.9;
  color: #7d6a67;
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 900;
  width: 48px;
  height: 48px;
  padding: 13px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(38, 20, 26, 0.92);
  color: var(--gold);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity var(--t-normal), visibility var(--t-normal), transform var(--t-normal), background var(--t-fast);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.back-to-top:hover {
  background: var(--maroon);
  color: #fff;
}

/* ================================================
   响应式
   ================================================ */
@media (max-width: 1080px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .screenshots-grid { grid-template-columns: repeat(2, 1fr); }
  .filter-layout { grid-template-columns: 1fr; gap: var(--space-lg); }
  .filter-card { position: static; }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .about-content { grid-template-columns: 1fr; gap: var(--space-lg); }
}

@media (max-width: 900px) {
  :root { --nav-height: 60px; }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1001;
    width: min(78vw, 320px);
    height: 100vh;
    padding: calc(var(--nav-height) + 20px) 18px 30px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: #1a0d11;
    border-left: 1px solid var(--line);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.5);
    transform: translateX(105%);
    transition: transform var(--t-normal);
    overflow-y: auto;
  }

  .nav-menu.active { transform: none; }

  /* 无 JS 时（脚本被拦截或未执行）导航退化为静态多行布局，保证链接可点、可被爬虫抓取 */
  html:not(.js) .navbar {
    position: static;
    height: auto;
    padding: 10px 0;
  }

  html:not(.js) .navbar .container {
    flex-wrap: wrap;
    height: auto;
    row-gap: 8px;
  }

  html:not(.js) .nav-menu {
    order: 3;
    position: static;
    width: 100%;
    height: auto;
    transform: none;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 2px;
    padding: 0;
    background: transparent;
    border-left: 0;
    box-shadow: none;
    overflow: visible;
  }

  html:not(.js) .nav-menu li a {
    padding: 8px 10px;
    font-size: 0.86rem;
  }

  html:not(.js) .nav-toggle { display: none; }

  html:not(.js) .hero-content { padding-top: 28px; }

  .nav-menu li a {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: var(--radius-md);
  }

  .nav-cta { display: none; }
  .nav-toggle { display: block; }

  .hero-content { padding: calc(var(--nav-height) + 20px) var(--space-md) 88px; }
  .hero-badge { padding: 5px 16px; margin-bottom: 20px; }
  .hero-title { font-size: 2.4rem; letter-spacing: 0.5px; }
  .hero-subtitle { margin-top: 20px; font-size: 1rem; line-height: 1.8; }
  .hero-buttons {
    flex-direction: column;
    gap: 12px;
    max-width: 360px;
    margin: 32px auto 0;
  }
  .hero-buttons .btn { width: 100%; }
  .section-title { font-size: 1.9rem; }
  .section { padding: 68px 0; }
}

@media (max-width: 640px) {
  :root { --space-xl: 68px; }

  .navbar-logo-text small { display: none; }

  .hero-content { padding: calc(var(--nav-height) + 16px) 30px 84px; }
  .hero-buttons { max-width: 300px; }
  .hero-title { font-size: 2.2rem; letter-spacing: 0.5px; }
  .hero-badge { font-size: 0.8rem; }

  .btn { min-width: 0; padding: 13px 22px; }
  .hero-buttons { gap: 12px; }

  .features-grid,
  .download-grid { grid-template-columns: 1fr; }

  .filter-list { grid-template-columns: 1fr; }
  .filter-card { padding: 20px; }

  /* 移动端截图：一排两张 */
  .screenshots-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px 12px;
  }

  .phone {
    padding: 5px;
    border-radius: 18px;
  }

  .phone::before { top: 9px; width: 30px; height: 3px; }

  .phone img { border-radius: 14px; }

  .screenshot-item figcaption {
    margin-top: 10px;
    font-size: 0.76rem;
    line-height: 1.5;
  }

  .stat-number { font-size: 1.6rem; }
  .footer-content { flex-direction: column; align-items: flex-start; }
  .back-to-top { right: 16px; bottom: 18px; width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}
/* ================================================
   博客模板：文章列表 / 文章页 / 页面 / 404
   ================================================ */
.site-main {
  padding: calc(var(--nav-height) + 52px) 0 84px;
  min-height: 70vh;
}

.page-head {
  max-width: 880px;
  margin-bottom: var(--space-lg);
}

.page-eyebrow {
  display: inline-block;
  padding: 3px 16px;
  margin-bottom: 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--gold);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-full);
  background: rgba(217, 170, 85, 0.06);
}

.page-head .page-title,
.entry-title {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 1px;
  color: var(--text);
}

.page-head .page-desc {
  margin-top: 10px;
  color: var(--muted);
}

/* 文章列表 */
.post-list {
  display: grid;
  gap: 18px;
  max-width: 880px;
}

.post-card {
  padding: 26px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  transition: transform var(--t-normal), border-color var(--t-normal), box-shadow var(--t-normal);
}

.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.post-card .entry-title {
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}

.post-card .entry-title a:hover { color: var(--gold-soft); }

.entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 10px 0 12px;
  font-size: 0.82rem;
  color: var(--muted);
}

.entry-meta a:hover { color: var(--gold); }

.entry-summary {
  font-size: 0.95rem;
  color: var(--text-dim);
}

.entry-more {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold);
}

.entry-more:hover { color: var(--gold-soft); }

/* 文章正文 */
.entry-article {
  max-width: 880px;
}

.entry-content {
  margin-top: var(--space-md);
  font-size: 1.02rem;
  color: var(--text-dim);
}

.entry-content > * + * { margin-top: 18px; }

.entry-content h2,
.entry-content h3,
.entry-content h4 {
  font-family: var(--font-heading);
  color: var(--text);
  line-height: 1.45;
}

.entry-content h2 { font-size: 1.5rem; }
.entry-content h3 { font-size: 1.25rem; }
.entry-content h4 { font-size: 1.1rem; }

.entry-content a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.entry-content a:hover { color: var(--gold-soft); }

.entry-content ul,
.entry-content ol {
  padding-left: 22px;
  list-style: none;
}

.entry-content ul li,
.entry-content ol li {
  position: relative;
  margin-top: 8px;
  padding-left: 16px;
}

.entry-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}

.entry-content ol { counter-reset: item; }

.entry-content ol li::before {
  counter-increment: item;
  content: counter(item) ".";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--gold);
  font-weight: 600;
}

.entry-content blockquote {
  padding: 16px 22px;
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.entry-content img,
.entry-content iframe,
.entry-content video {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.entry-content code {
  padding: 2px 6px;
  font-size: 0.9em;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--gold-soft);
}

.entry-content pre {
  padding: 18px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
}

.entry-content pre code { background: none; padding: 0; }

.entry-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.entry-content th,
.entry-content td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
}

.entry-content th { background: rgba(255, 255, 255, 0.05); color: var(--text); }

/* 文章底部 */
.entry-footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
}

.entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.entry-tags a {
  padding: 5px 14px;
  font-size: 0.8rem;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius-full);
}

.entry-tags a:hover {
  color: var(--gold-soft);
  border-color: var(--line-strong);
}

.post-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.post-nav a {
  padding: 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--text-dim);
  transition: border-color var(--t-fast), color var(--t-fast);
}

.post-nav a:hover { color: var(--gold); border-color: var(--line-strong); }
.post-nav .nav-next { text-align: right; }

/* 分页 */
.pagination { max-width: 880px; margin-top: var(--space-lg); }

.pagination .page-numbers {
  display: inline-block;
  min-width: 40px;
  padding: 8px 12px;
  margin: 0 4px 6px 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--red-hi), var(--maroon));
}

.pagination .page-numbers.dots { border: none; }

/* 404 与空状态 */
.empty-state {
  max-width: 620px;
  padding: 40px 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
}

.empty-state .big-code {
  font-family: var(--font-heading);
  font-size: 3.4rem;
  line-height: 1.1;
  color: var(--gold);
}

.empty-state h1 {
  margin: 10px 0 12px;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--text);
}

.empty-state p { color: var(--muted); margin-bottom: 22px; }

/* WordPress 对齐/媒体类 */
.alignleft {
  float: left;
  margin: 6px 24px 16px 0;
}

.alignright {
  float: right;
  margin: 6px 0 16px 24px;
}

.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.wp-caption { max-width: 100%; }

.wp-caption-text,
.wp-block-image figcaption,
figcaption {
  margin-top: 8px;
  font-size: 0.84rem;
  color: var(--muted);
}

.sticky .post-card { border-color: var(--line-strong); }

.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 登录状态下的管理工具栏偏移 */
body.admin-bar .navbar { top: 32px; }
body.admin-bar .hero-content { padding-top: calc(var(--nav-height) + 52px); }

@media screen and (max-width: 782px) {
  body.admin-bar .navbar { top: 46px; }
}

@media (max-width: 900px) {
  .site-main { padding-top: calc(var(--nav-height) + 34px); }
  .page-head .page-title,
  .entry-title { font-size: 1.7rem; }
}

@media (max-width: 640px) {
  .post-card { padding: 20px; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .nav-next { text-align: left; }
  .entry-content { font-size: 0.98rem; }
}