/*
Theme Name: ResKit 资源站主题
Theme URI: https://github.com/yourname/reskit
Author: gaicibi1
Author URI:
Description: 轻量、零依赖的 WordPress 资源下载站主题。纯手写 CSS + 原生 JS，不引入任何前端框架或 CDN。内置免费/付费资源标识、下载按钮、用户中心页模板，可无缝对接 Easy Digital Downloads(EDD) 处理支付与交付；未安装 EDD 时自动降级为免费下载模式，不会报错。
Version: 1.0.0
Requires at least: 5.9
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: reskit
Tags: 资源下载, 付费资源, 博客, 自媒体, 响应式, 中文, 网格布局
*/

/* ==========================================================================
   1. 设计变量（改这里就能换整套配色，不用动其他代码）
   ========================================================================== */
:root {
  /* 主色调（Indigo 企业风，参考 ScriptMarket "官方"质感） */
  --rk-primary: #4f46e5;
  --rk-primary-dark: #3730a3;
  --rk-primary-light: #a5b4fc;
  --rk-primary-soft: #eef2ff;
  --rk-accent: #06b6d4;       /* 青色点缀 */
  --rk-on-primary: #ffffff;

  /* 语义色 */
  --rk-danger: #e5484d;      /* 付费 / 价格（保留醒目红） */
  --rk-success: #10b981;     /* 免费 */
  --rk-warning: #f59e0b;     /* 推荐 / 热门 */
  --rk-vip: #8b5cf6;         /* VIP 标识 */
  --rk-info: #4f46e5;

  /* 中性色（浅色主题）— 参考 Tailwind Slate */
  --rk-bg: #f8fafc;
  --rk-surface: #ffffff;
  --rk-surface-2: #f1f5f9;
  --rk-border: #e2e8f0;
  --rk-text: #0f172a;
  --rk-text-2: #475569;
  --rk-text-3: #94a3b8;

  /* 字体 */
  --rk-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
             'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;

  /* 尺寸 / 阴影 / 动效 */
  --rk-radius: 12px;
  --rk-radius-sm: 8px;
  --rk-radius-lg: 20px;
  --rk-shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --rk-shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
  --rk-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, .07), 0 2px 4px -2px rgba(15, 23, 42, .05);
  --rk-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .08), 0 4px 6px -4px rgba(15, 23, 42, .04);
  --rk-shadow-hover: 0 20px 25px -5px rgba(15, 23, 42, .1), 0 8px 10px -6px rgba(15, 23, 42, .05);
  --rk-transition: .25s cubic-bezier(.4, 0, .2, 1);

  /* 布局 */
  --rk-container: 1200px;
  --rk-header-h: 68px;
  --rk-gap: 24px;
}

/* 深色模式：想默认深色，把这段的 @media 去掉即可 */
@media (prefers-color-scheme: dark) {
  :root {
    --rk-bg: #0f172a;
    --rk-surface: #1e293b;
    --rk-surface-2: #273449;
    --rk-border: #334155;
    --rk-text: #e8edf5;
    --rk-text-2: #b3c0d4;
    --rk-text-3: #8595ad;
    --rk-primary-soft: #312e81;
    --rk-shadow: 0 1px 3px rgba(0, 0, 0, .3), 0 1px 2px rgba(0, 0, 0, .2);
    --rk-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .3);
  }
}

/* ==========================================================================
   2. 基础重置
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--rk-bg);
  color: var(--rk-text);
  font-family: var(--rk-font);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--rk-primary); }
ul, ol { padding-left: 1.4em; }
button { font: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--rk-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 屏幕阅读器专用文本 */
.rk-sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   3. 布局容器
   ========================================================================== */
.rk-container {
  width: 100%;
  max-width: var(--rk-container);
  margin: 0 auto;
  padding: 0 20px;
}

.rk-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 32px;
  padding: 28px 0 56px;
  align-items: start;
}

.rk-layout.is-full { grid-template-columns: minmax(0, 1fr); }

@media (max-width: 960px) {
  .rk-layout { grid-template-columns: minmax(0, 1fr); }
  .rk-sidebar { order: 2; }
}

/* ==========================================================================
   4. 顶部导航
   ========================================================================== */
.rk-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--rk-surface); /* 老浏览器兜底（不支持 color-mix 时） */
  background: color-mix(in srgb, var(--rk-surface) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--rk-border);
}

.rk-header__inner {
  height: var(--rk-header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.rk-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.2px;
  flex-shrink: 0;
}
.rk-logo img { max-height: 32px; width: auto; }
.rk-logo:hover { color: var(--rk-text); }

.rk-nav { flex: 1; min-width: 0; }
.rk-nav > ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: 4px; align-items: center;
  overflow-x: auto; scrollbar-width: none;
}
.rk-nav > ul::-webkit-scrollbar { display: none; }
/* 桌面端取消横向滚动裁剪：overflow-x:auto 会连带裁掉垂直方向的二级下拉面板 */
@media (min-width: 1101px) {
  .rk-nav > ul { overflow: visible; }
}
.rk-nav li { position: relative; flex-shrink: 0; }
.rk-nav a {
  display: block; padding: 8px 13px; border-radius: var(--rk-radius-sm);
  font-size: 14px; font-weight: 500; color: var(--rk-text-2); white-space: nowrap;
}
.rk-nav a:hover { background: var(--rk-surface-2); color: var(--rk-primary); }
.rk-nav .current-menu-item > a,
.rk-nav .current-menu-ancestor > a { color: var(--rk-primary); background: var(--rk-primary-soft); }

/* 二级菜单 */
.rk-nav .sub-menu {
  display: none; position: absolute; top: 100%; left: 0; z-index: 20;
  min-width: 160px; margin: 4px 0 0; padding: 6px; list-style: none;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); box-shadow: var(--rk-shadow-hover);
}
.rk-nav li:hover > .sub-menu { display: block; }
.rk-nav .sub-menu a { padding: 7px 12px; }

/* 头部右侧操作区 */
.rk-header__actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.rk-search-toggle {
  width: 36px; height: 36px; display: grid; place-items: center;
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
  background: var(--rk-surface); color: var(--rk-text-2);
}
.rk-search-toggle:hover { color: var(--rk-primary); border-color: var(--rk-primary); }

/* 移动端菜单按钮 */
.rk-menu-toggle { display: none; }

@media (max-width: 860px) {
  .rk-menu-toggle {
    display: grid; place-items: center; width: 36px; height: 36px;
    border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
    background: var(--rk-surface); color: var(--rk-text-2);
  }
  .rk-nav {
    display: none; position: absolute; top: var(--rk-header-h); left: 0; right: 0;
    background: var(--rk-surface); border-bottom: 1px solid var(--rk-border);
    padding: 12px; box-shadow: var(--rk-shadow-hover);
  }
  .rk-nav.is-open { display: block; }
  .rk-nav > ul { flex-direction: column; align-items: stretch; overflow: visible; }
  .rk-nav .sub-menu { display: none; position: static; box-shadow: none; border: 0; padding-left: 12px; }
  .rk-nav li:hover > .sub-menu { display: none; }
  .rk-nav li.is-open > .sub-menu { display: block; }
}

/* 站内搜索抽屉 */
.rk-search-panel {
  display: none;
  border-top: 1px solid var(--rk-border);
  background: var(--rk-surface);
  padding: 16px 0;
}
.rk-search-panel.is-open { display: block; }
.rk-search-panel form { display: flex; gap: 10px; }
.rk-search-panel input[type="search"] {
  flex: 1; padding: 10px 14px; font-size: 15px;
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
  background: var(--rk-surface-2); color: var(--rk-text);
}
.rk-search-panel input[type="search"]:focus {
  outline: none; border-color: var(--rk-primary); background: var(--rk-surface);
}

/* ==========================================================================
   5. 通用按钮
   ========================================================================== */
.rk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 18px; border: 1px solid transparent; border-radius: var(--rk-radius-sm);
  font-size: 14px; font-weight: 500; line-height: 1.5; cursor: pointer;
  transition: all .18s ease; white-space: nowrap;
}
.rk-btn--primary { background: var(--rk-primary); color: #fff; box-shadow: 0 4px 14px rgba(79, 70, 229, .28); }
.rk-btn--primary:hover { background: var(--rk-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(79, 70, 229, .38); }
.rk-btn--outline { background: transparent; border-color: var(--rk-border); color: var(--rk-text-2); }
.rk-btn--outline:hover { border-color: var(--rk-primary); color: var(--rk-primary); }
.rk-btn--danger { background: var(--rk-danger); color: #fff; }
.rk-btn--danger:hover { filter: brightness(.93); color: #fff; }
.rk-btn--block { display: flex; width: 100%; }
.rk-btn--lg { padding: 12px 24px; font-size: 15px; }
.rk-btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

/* ==========================================================================
   6. 首页 Hero / 公告条
   ========================================================================== */
.rk-hero {
  position: relative;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 50%, #f0fdfa 100%);
  color: var(--rk-text); border-radius: var(--rk-radius-lg);
  padding: 56px 48px; margin: 28px 0 0; overflow: hidden;
  box-shadow: var(--rk-shadow);
}
/* 角落柔光，呼应官方风 */
.rk-hero::before {
  content: ""; position: absolute; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(79, 70, 229, .10), transparent 70%);
  top: -160px; right: -80px; pointer-events: none;
}
.rk-hero > * { position: relative; z-index: 1; }
.rk-hero__badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px;
  background: var(--rk-primary-soft); border-radius: 999px; font-size: .8rem;
  font-weight: 600; color: var(--rk-primary); margin-bottom: 18px;
}
.rk-hero h1 { margin: 0 0 12px; font-size: 34px; font-weight: 800; line-height: 1.2; letter-spacing: -.03em; }
.rk-hero h1 span { background: linear-gradient(135deg, var(--rk-primary), var(--rk-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.rk-hero p { margin: 0 0 22px; font-size: 15px; color: var(--rk-text-2); max-width: 640px; line-height: 1.7; }
.rk-hero__stats { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 12px; padding-top: 24px; border-top: 1px solid var(--rk-border); }
.rk-hero__stat strong { display: block; font-size: 22px; font-weight: 800; color: var(--rk-text); }
.rk-hero__stat span { font-size: 13px; color: var(--rk-text-3); }

.rk-notice {
  display: flex; align-items: flex-start; gap: 10px;
  margin: 20px 0 0; padding: 12px 16px;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-left: 3px solid var(--rk-warning); border-radius: var(--rk-radius-sm);
  font-size: 14px; color: var(--rk-text-2);
}

/* 信任条（官方质感：企业级安全 / 即时交付 / 7x24 支持…） */
.rk-trust {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 12px 40px; margin: 18px 0 0; padding: 20px 24px;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); box-shadow: var(--rk-shadow-sm);
}
.rk-trust__label { font-size: 13px; font-weight: 700; letter-spacing: .04em; color: var(--rk-text-3); text-transform: uppercase; }
.rk-trust__item { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; font-weight: 500; color: var(--rk-text-2); }
.rk-trust__item svg { color: var(--rk-primary); }

/* ==========================================================================
   7. 区块标题
   ========================================================================== */
.rk-section-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; margin: 34px 0 18px; flex-wrap: wrap;
}
.rk-section-head h2 {
  margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -.2px;
  display: flex; align-items: center; gap: 9px;
}
.rk-section-head h2::before {
  content: ""; width: 4px; height: 17px; border-radius: 2px; background: var(--rk-primary);
}
.rk-section-head .rk-more { font-size: 13px; color: var(--rk-text-3); }
.rk-section-head p { margin: 6px 0 0; font-size: 14px; color: var(--rk-text-3); max-width: 720px; }

/* 分类筛选胶囊（首页用，链接到分类归档） */
.rk-chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 0; }
.rk-chip {
  padding: 8px 16px; border: 1px solid var(--rk-border); border-radius: 999px;
  background: var(--rk-surface); font-size: 14px; font-weight: 500; color: var(--rk-text-2);
  transition: var(--rk-transition); white-space: nowrap;
}
.rk-chip:hover, .rk-chip.is-active {
  background: var(--rk-primary); border-color: var(--rk-primary); color: #fff;
}

/* 精选推荐行：更大的卡片 + 渐变图标块 */
.rk-feature { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--rk-gap); }
@media (max-width: 860px) { .rk-feature { grid-template-columns: 1fr; } }
.rk-feature__card {
  display: flex; gap: 16px; align-items: flex-start; padding: 18px;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); box-shadow: var(--rk-shadow-sm); transition: var(--rk-transition);
}
.rk-feature__card:hover { box-shadow: var(--rk-shadow-hover); transform: translateY(-3px); border-color: transparent; }
.rk-feature__icon {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--rk-primary), var(--rk-accent));
}
.rk-feature__icon svg { width: 24px; height: 24px; }
.rk-feature__body { flex: 1; min-width: 0; }
.rk-feature__title { margin: 0 0 4px; font-size: 15.5px; font-weight: 700; }
.rk-feature__title a { color: var(--rk-text); }
.rk-feature__title a:hover { color: var(--rk-primary); }
.rk-feature__desc { margin: 0 0 10px; font-size: 13px; color: var(--rk-text-3); line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rk-feature__foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.rk-feature__price { font-size: 16px; font-weight: 800; color: var(--rk-primary); }
.rk-feature__price.is-free { color: var(--rk-success); }

/* 购买流程三步 */
.rk-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px; }
@media (max-width: 760px) { .rk-steps { grid-template-columns: 1fr; } }
.rk-step {
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); padding: 24px; box-shadow: var(--rk-shadow-sm);
}
.rk-step__num {
  width: 40px; height: 40px; border-radius: 12px; margin-bottom: 14px;
  background: var(--rk-primary-soft); color: var(--rk-primary);
  display: grid; place-items: center; font-weight: 800; font-size: 17px;
}
.rk-step h3 { margin: 0 0 6px; font-size: 16px; }
.rk-step p { margin: 0; font-size: 13.5px; color: var(--rk-text-3); }

/* 深色 CTA 横幅 */
.rk-cta {
  position: relative; overflow: hidden; margin: 44px 0 0; padding: 48px;
  border-radius: var(--rk-radius-lg); text-align: center; color: #fff;
  background: linear-gradient(135deg, var(--rk-primary) 0%, #312e81 100%);
  box-shadow: var(--rk-shadow-lg);
}
.rk-cta::before {
  content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(6, 182, 212, .25), transparent 70%);
  bottom: -200px; left: -120px; pointer-events: none;
}
.rk-cta > * { position: relative; z-index: 1; }
.rk-cta h2 { margin: 0 0 10px; font-size: 26px; font-weight: 800; letter-spacing: -.02em; }
.rk-cta p { margin: 0 0 22px; opacity: .9; font-size: 15px; }
.rk-cta .rk-btn--outline { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .4); color: #fff; }
.rk-cta .rk-btn--outline:hover { background: #fff; color: var(--rk-primary); border-color: #fff; }

/* ==========================================================================
   8. 资源卡片网格
   ========================================================================== */
.rk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--rk-gap);
}

.rk-card {
  display: flex; flex-direction: column;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.rk-card:hover { transform: translateY(-4px); box-shadow: var(--rk-shadow-hover); border-color: transparent; }

.rk-card__thumb {
  position: relative; aspect-ratio: 16 / 10; overflow: hidden;
  background: var(--rk-surface-2);
}
.rk-card__thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.rk-card:hover .rk-card__thumb img { transform: scale(1.05); }
.rk-card__thumb--empty { display: grid; place-items: center; }
.rk-card__thumb--empty svg { width: 40px; height: 40px; opacity: .22; color: var(--rk-text-3); }

/* 价格 / 状态徽章 */
.rk-badge {
  position: absolute; top: 10px; left: 10px;
  padding: 3px 9px; border-radius: 999px;
  font-size: 12px; font-weight: 600; line-height: 1.6; color: #fff;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.rk-badge--free   { background: rgba(22, 163, 74, .92); }
.rk-badge--paid   { background: rgba(229, 72, 77, .92); }
.rk-badge--vip    { background: rgba(139, 92, 246, .92); }
.rk-badge--hot    { background: rgba(245, 158, 11, .92); }

.rk-card__body { padding: 14px 15px 16px; display: flex; flex-direction: column; flex: 1; gap: 8px; }

.rk-card__title {
  margin: 0; font-size: 15px; font-weight: 600; line-height: 1.5;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.rk-card__title a { color: var(--rk-text); }
.rk-card__title a:hover { color: var(--rk-primary); }

.rk-card__excerpt {
  margin: 0; font-size: 13px; color: var(--rk-text-3); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* ---- 分页（Typecho pageNav 输出 <ul class="rk-pager"><li>…）---- */
.rk-pager {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 36px 0 8px; padding: 0; list-style: none;
}
.rk-pager li { list-style: none; margin: 0; }
.rk-pager li a, .rk-pager li span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 38px; height: 38px; padding: 0 14px; box-sizing: border-box;
  border-radius: 10px; border: 1px solid var(--rk-line, #e8e8f0);
  background: #fff; color: var(--rk-text-2, #555);
  font-size: 14px; line-height: 1; text-decoration: none;
  transition: border-color .15s, color .15s, background .15s;
}
.rk-pager li span { background: transparent; border-color: transparent; color: var(--rk-text-3, #999); }
.rk-pager li.current a,
.rk-pager li.current span {
  background: var(--rk-primary); color: #fff; border-color: var(--rk-primary); font-weight: 600;
}
.rk-pager li a:hover { border-color: var(--rk-primary); color: var(--rk-primary); }
.rk-pager li a { box-shadow: 0 1px 2px rgba(20, 20, 60, .04); }

.rk-card__meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;  margin-top: auto; padding-top: 6px;
  font-size: 12px; color: var(--rk-text-3);
}
.rk-card__price { font-size: 15px; font-weight: 700; color: var(--rk-primary); }
.rk-card__price.is-free { color: var(--rk-success); }

/* 分类标签 */
.rk-tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  background: var(--rk-primary-soft); color: var(--rk-primary);
  font-size: 12px; font-weight: 500;
}
.rk-tag:hover { background: var(--rk-primary); color: #fff; }

/* ==========================================================================
   9. 文章详情
   ========================================================================== */
.rk-article { background: var(--rk-surface); border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg); padding: 32px; }
@media (max-width: 640px) { .rk-article { padding: 20px 16px; border-radius: var(--rk-radius); } }

.rk-article__header { border-bottom: 1px solid var(--rk-border); padding-bottom: 20px; margin-bottom: 24px; }
.rk-article__title { margin: 0 0 12px; font-size: 26px; font-weight: 700; line-height: 1.4; letter-spacing: -.4px; }
.rk-article__meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--rk-text-3); }
.rk-article__meta .rk-sep { opacity: .4; }

/* 正文排版 */
.rk-content { font-size: 15.5px; line-height: 1.85; color: var(--rk-text); word-wrap: break-word; }
.rk-content > *:first-child { margin-top: 0; }
.rk-content h2 { margin: 34px 0 14px; font-size: 21px; padding-left: 11px; border-left: 4px solid var(--rk-primary); }
.rk-content h3 { margin: 26px 0 12px; font-size: 18px; }
.rk-content h4 { margin: 22px 0 10px; font-size: 16px; }
.rk-content p { margin: 0 0 16px; }
.rk-content ul, .rk-content ol { margin: 0 0 16px; }
.rk-content li { margin-bottom: 6px; }
.rk-content blockquote {
  margin: 20px 0; padding: 12px 18px; background: var(--rk-surface-2);
  border-left: 3px solid var(--rk-primary); border-radius: 0 var(--rk-radius-sm) var(--rk-radius-sm) 0;
  color: var(--rk-text-2);
}
.rk-content blockquote p:last-child { margin-bottom: 0; }
.rk-content code {
  padding: 2px 6px; background: var(--rk-surface-2); border: 1px solid var(--rk-border);
  border-radius: 5px; font-size: 13.5px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
.rk-content pre {
  margin: 18px 0; padding: 16px; overflow-x: auto;
  background: var(--rk-surface-2); border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
}
.rk-content pre code { padding: 0; background: none; border: 0; }
.rk-content img { border-radius: var(--rk-radius-sm); }
.rk-content table { width: 100%; margin: 18px 0; border-collapse: collapse; font-size: 14px; }
.rk-content th, .rk-content td { padding: 9px 12px; border: 1px solid var(--rk-border); text-align: left; }
.rk-content th { background: var(--rk-surface-2); font-weight: 600; }
.rk-content a { color: var(--rk-primary); text-decoration: underline; text-underline-offset: 2px; }

/* ==========================================================================
   10. 付费 / 下载区块
   ========================================================================== */
.rk-paywall {
  margin: 30px 0 0; padding: 24px;
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg);
  background: linear-gradient(180deg, var(--rk-surface-2), var(--rk-surface));
  text-align: center;
}
.rk-paywall__label { font-size: 13px; color: var(--rk-text-3); margin-bottom: 6px; }
.rk-paywall__price { font-size: 32px; font-weight: 700; color: var(--rk-danger); line-height: 1.2; }
.rk-paywall__price.is-free { color: var(--rk-success); }
.rk-paywall__price small { font-size: 15px; font-weight: 500; }
.rk-paywall__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.rk-paywall__note { margin: 14px 0 0; font-size: 12.5px; color: var(--rk-text-3); }
.rk-paywall__files { margin-top: 18px; text-align: left; }
.rk-paywall__files summary {
  cursor: pointer; font-size: 13px; color: var(--rk-text-2); padding: 8px 0;
}

/* 需要登录 / 需购买时的遮罩提示 */
.rk-locked {
  position: relative; margin-top: 24px; padding: 40px 24px; text-align: center;
  border: 1px dashed var(--rk-border); border-radius: var(--rk-radius);
  background: var(--rk-surface-2); color: var(--rk-text-3); font-size: 14px;
}
.rk-locked__icon { font-size: 28px; margin-bottom: 8px; }

/* ==========================================================================
   11. 分页
   ========================================================================== */
.rk-pagination { display: flex; justify-content: center; gap: 6px; margin: 34px 0 0; flex-wrap: wrap; }
.rk-pagination .page-numbers {
  min-width: 38px; height: 38px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-sm); font-size: 14px; color: var(--rk-text-2);
}
.rk-pagination .page-numbers:hover { border-color: var(--rk-primary); color: var(--rk-primary); }
.rk-pagination .page-numbers.current {
  background: var(--rk-primary); border-color: var(--rk-primary); color: #fff; font-weight: 600;
}

/* ==========================================================================
   12. 侧边栏小工具
   ========================================================================== */
.rk-widget {
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); padding: 18px; margin-bottom: 20px;
}
.rk-widget__title {
  margin: 0 0 14px; font-size: 15px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.rk-widget__title::before { content: ""; width: 3px; height: 14px; border-radius: 2px; background: var(--rk-primary); }
.rk-widget ul { list-style: none; margin: 0; padding: 0; }
.rk-widget li { padding: 7px 0; border-bottom: 1px dashed var(--rk-border); font-size: 14px; }
.rk-widget li:last-child { border-bottom: 0; }
.rk-widget li a { color: var(--rk-text-2); }
.rk-widget li a:hover { color: var(--rk-primary); }

/* 热门排行带序号 */
.rk-rank { counter-reset: rk-rank; }
.rk-rank li { display: flex; gap: 10px; align-items: flex-start; }
.rk-rank li::before {
  counter-increment: rk-rank; content: counter(rk-rank);
  flex-shrink: 0; width: 20px; height: 20px; margin-top: 3px;
  display: grid; place-items: center; border-radius: 5px;
  background: var(--rk-surface-2); color: var(--rk-text-3);
  font-size: 12px; font-weight: 700;
}
.rk-rank li:nth-child(1)::before { background: var(--rk-danger); color: #fff; }
.rk-rank li:nth-child(2)::before { background: var(--rk-warning); color: #fff; }
.rk-rank li:nth-child(3)::before { background: var(--rk-primary); color: #fff; }

/* ==========================================================================
   13. 用户中心
   ========================================================================== */
.rk-user {
  display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px;
}
@media (max-width: 860px) { .rk-user { grid-template-columns: minmax(0, 1fr); } }

.rk-user__side { background: var(--rk-surface); border: 1px solid var(--rk-border); border-radius: var(--rk-radius); padding: 20px; }
.rk-user__avatar { width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 12px; object-fit: cover; }
.rk-user__name { text-align: center; font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.rk-user__role { text-align: center; font-size: 12px; color: var(--rk-text-3); margin-bottom: 18px; }
.rk-user__nav { list-style: none; margin: 0; padding: 0; }
.rk-user__nav a {
  display: block; padding: 9px 12px; border-radius: var(--rk-radius-sm);
  font-size: 14px; color: var(--rk-text-2);
}
.rk-user__nav a:hover, .rk-user__nav a.is-active { background: var(--rk-primary-soft); color: var(--rk-primary); }

.rk-user__main { background: var(--rk-surface); border: 1px solid var(--rk-border); border-radius: var(--rk-radius); padding: 24px; }
.rk-user__main h2 { margin: 0 0 18px; font-size: 18px; }

.rk-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.rk-table th, .rk-table td { padding: 11px 12px; border-bottom: 1px solid var(--rk-border); text-align: left; }
.rk-table th { color: var(--rk-text-3); font-weight: 500; font-size: 13px; }
.rk-table tbody tr:hover { background: var(--rk-surface-2); }

.rk-empty { padding: 40px 20px; text-align: center; color: var(--rk-text-3); font-size: 14px; }

/* 登录表单 */
.rk-form { max-width: 380px; margin: 0 auto; }
.rk-form label { display: block; margin-bottom: 6px; font-size: 13px; font-weight: 500; color: var(--rk-text-2); }
.rk-form input[type="text"],
.rk-form input[type="password"],
.rk-form input[type="email"] {
  width: 100%; padding: 10px 13px; margin-bottom: 16px;
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
  background: var(--rk-surface-2); color: var(--rk-text); font-size: 14px;
}
.rk-form input:focus { outline: none; border-color: var(--rk-primary); background: var(--rk-surface); }
.rk-form .rk-btn { width: 100%; }

/* ==========================================================================
   14. 评论
   ========================================================================== */
.rk-comments { margin-top: 34px; background: var(--rk-surface); border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg); padding: 28px; }
.rk-comments h3 { margin: 0 0 20px; font-size: 18px; }
.rk-comment-list { list-style: none; margin: 0; padding: 0; }
.rk-comment-list .children { list-style: none; margin-left: 44px; }
.rk-comment { padding: 16px 0; border-bottom: 1px solid var(--rk-border); }
.rk-comment:last-child { border-bottom: 0; }
.rk-comment__head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.rk-comment__avatar { width: 36px; height: 36px; border-radius: 50%; }
.rk-comment__author { font-weight: 600; font-size: 14px; }
.rk-comment__date { font-size: 12px; color: var(--rk-text-3); }
.rk-comment__body { font-size: 14px; color: var(--rk-text-2); }
.rk-comment__body p { margin: 0 0 8px; }

.rk-comment-form textarea {
  width: 100%; min-height: 96px; padding: 11px 13px; margin-bottom: 12px;
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-sm);
  background: var(--rk-surface-2); color: var(--rk-text); font: inherit; font-size: 14px; resize: vertical;
}
.rk-comment-form textarea:focus { outline: none; border-color: var(--rk-primary); background: var(--rk-surface); }

/* ==========================================================================
   15. 页脚
   ========================================================================== */
.rk-footer { background: var(--rk-surface); border-top: 1px solid var(--rk-border); margin-top: 20px; padding: 36px 0 24px; }
.rk-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .rk-footer__grid { grid-template-columns: 1fr; gap: 24px; } }
.rk-footer h4 { margin: 0 0 12px; font-size: 14px; font-weight: 600; }
.rk-footer p, .rk-footer li { font-size: 13px; color: var(--rk-text-3); }
.rk-footer ul { list-style: none; margin: 0; padding: 0; }
.rk-footer li { margin-bottom: 7px; }
.rk-footer__bottom {
  margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--rk-border);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--rk-text-3);
}

/* ==========================================================================
   16. 404 / 空状态
   ========================================================================== */
.rk-notfound { padding: 80px 20px; text-align: center; }
.rk-notfound h1 { font-size: 72px; margin: 0; color: var(--rk-border); letter-spacing: -2px; }
.rk-notfound p { color: var(--rk-text-3); margin: 8px 0 24px; }

/* ==========================================================================
   17. 工具类
   ========================================================================== */
.rk-mt-0 { margin-top: 0; }
.rk-mb-0 { margin-bottom: 0; }
.rk-text-center { text-align: center; }
.rk-text-muted { color: var(--rk-text-3); }
.rk-divider { height: 1px; background: var(--rk-border); margin: 24px 0; border: 0; }

/* ==========================================================================
   18. 落地页专属区块（参考 ScriptMarket 官方风）
   ========================================================================== */

/* Hero 双栏布局：左文案 + 右团队/视觉卡片 */
.rk-hero--split {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}
@media (max-width: 900px) {
  .rk-hero--split { grid-template-columns: 1fr; }
}
.rk-hero__content { max-width: 560px; }
.rk-hero__visual {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  padding: 12px; position: relative;
}
.rk-hero__visual-card {
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg); padding: 18px 12px; text-align: center;
  box-shadow: var(--rk-shadow-md); transition: var(--rk-transition);
}
.rk-hero__visual-card:hover { transform: translateY(-4px); box-shadow: var(--rk-shadow-hover); }
.rk-hero__avatar {
  width: 58px; height: 58px; border-radius: 50%; margin: 0 auto 10px;
  display: grid; place-items: center; font-weight: 800; font-size: 20px; color: #fff;
  background: linear-gradient(135deg, var(--rk-primary), var(--rk-accent));
}
.rk-hero__visual-card h4 { margin: 0 0 2px; font-size: 13.5px; }
.rk-hero__visual-card span { font-size: 11.5px; color: var(--rk-text-3); }
.rk-hero__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* 首页统计条（紧跟 Hero） */
.rk-stats-bar {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin: 32px 0 0; padding: 28px 32px; background: var(--rk-surface);
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg); box-shadow: var(--rk-shadow-sm);
}
@media (max-width: 640px) { .rk-stats-bar { grid-template-columns: 1fr; text-align: center; } }
.rk-stats-bar__item strong { display: block; font-size: 28px; font-weight: 800; color: var(--rk-text); }
.rk-stats-bar__item span { font-size: 13.5px; color: var(--rk-text-3); }

/* 使命/优势区块：左文案 + 右配图 */
.rk-mission {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center;
  padding: 72px 0;
}
@media (max-width: 900px) { .rk-mission { grid-template-columns: 1fr; } }
.rk-mission__label {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px;
  background: var(--rk-primary-soft); border-radius: 999px; font-size: .75rem;
  font-weight: 700; color: var(--rk-primary); margin-bottom: 16px;
}
.rk-mission h2 { margin: 0 0 16px; font-size: 30px; font-weight: 800; line-height: 1.25; }
.rk-mission h2 span { background: linear-gradient(135deg, var(--rk-primary), var(--rk-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.rk-mission__lead { color: var(--rk-text-2); font-size: 15px; line-height: 1.75; margin-bottom: 32px; }
.rk-mission__features { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 520px) { .rk-mission__features { grid-template-columns: 1fr; } }
.rk-mission__feature { display: flex; gap: 12px; }
.rk-mission__icon {
  width: 44px; height: 44px; border-radius: 12px; flex-shrink: 0;
  background: var(--rk-primary-soft); color: var(--rk-primary);
  display: grid; place-items: center;
}
.rk-mission__icon svg { width: 22px; height: 22px; }
.rk-mission__feature h4 { margin: 0 0 3px; font-size: 14.5px; }
.rk-mission__feature p { margin: 0; font-size: 12.5px; color: var(--rk-text-3); line-height: 1.55; }
.rk-mission__media {
  position: relative; background: linear-gradient(135deg, var(--rk-primary-soft), #f0fdfa);
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg);
  min-height: 320px; display: grid; place-items: center; overflow: hidden;
}
.rk-mission__media-img { color: var(--rk-text-3); text-align: center; }
.rk-mission__float {
  position: absolute; right: 20px; bottom: 20px;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); padding: 16px 20px; box-shadow: var(--rk-shadow-lg);
  text-align: center;
}
.rk-mission__float strong { display: block; font-size: 26px; font-weight: 800; color: var(--rk-primary); }
.rk-mission__float span { font-size: 12px; color: var(--rk-text-3); }

/* 团队区块 */
.rk-team { padding: 72px 0; }
.rk-team__header { text-align: center; margin-bottom: 40px; }
.rk-team__header .rk-mission__label { margin-bottom: 14px; }
.rk-team__header h2 { margin: 0 0 10px; font-size: 28px; font-weight: 800; }
.rk-team__header p { margin: 0; color: var(--rk-text-3); font-size: 14.5px; }
.rk-team__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
@media (max-width: 900px) { .rk-team__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .rk-team__grid { grid-template-columns: 1fr; } }
.rk-team__card {
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg); padding: 30px 20px; text-align: center;
  box-shadow: var(--rk-shadow-sm); transition: var(--rk-transition);
}
.rk-team__card:hover { transform: translateY(-4px); box-shadow: var(--rk-shadow-hover); }
.rk-team__avatar { width: 76px; height: 76px; border-radius: 50%; margin: 0 auto 16px; display: grid; place-items: center; font-size: 26px; font-weight: 800; color: #fff; }
.rk-team__card h4 { margin: 0 0 4px; font-size: 16px; }
.rk-team__role { margin: 0 0 10px; font-size: 12.5px; color: var(--rk-primary); font-weight: 600; }
.rk-team__bio { margin: 0 0 16px; font-size: 12.5px; color: var(--rk-text-3); line-height: 1.55; }
.rk-team__social { display: flex; justify-content: center; gap: 8px; }
.rk-team__social a { width: 30px; height: 30px; border-radius: 50%; background: var(--rk-surface-2); color: var(--rk-text-3); display: grid; place-items: center; }
.rk-team__social a:hover { background: var(--rk-primary); color: #fff; }

/* Hero 右栏获客痛点卡 */
.rk-hero__problem {
  background: var(--rk-surface);
  border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg);
  padding: 32px;
  box-shadow: var(--rk-shadow-md);
  position: relative;
}
.rk-hero__problem::before {
  content: "";
  position: absolute; top: 24px; left: 0; width: 4px; height: 40px;
  background: linear-gradient(180deg, var(--rk-primary), var(--rk-accent));
  border-radius: 0 4px 4px 0;
}
.rk-hero__problem h3 { margin: 0 0 18px; font-size: 18px; line-height: 1.6; color: var(--rk-text); }
.rk-hero__problem ul { margin: 0; padding: 0; list-style: none; }
.rk-hero__problem li { position: relative; padding-left: 20px; margin-bottom: 10px; font-size: 14.5px; color: var(--rk-text-2); }
.rk-hero__problem li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--rk-primary);
}

/* 打印优化 */
@media print {
  .rk-header, .rk-footer, .rk-sidebar, .rk-comments { display: none; }
  .rk-layout { grid-template-columns: 1fr; }
}

/* Slogan 主张条（自动化｜省人力｜降成本｜少试错｜可掌控） */
.rk-slogan {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
  gap: 10px 14px; margin: 28px 0 0; padding: 24px;
  background: linear-gradient(135deg, var(--rk-primary-soft), #f0fdfa);
  border: 1px solid var(--rk-border); border-radius: var(--rk-radius-lg);
}
.rk-slogan__item {
  font-size: 17px; font-weight: 700; color: var(--rk-primary);
  padding: 7px 18px; background: var(--rk-surface);
  border: 1px solid var(--rk-border); border-radius: 999px;
}
.rk-slogan__sep { color: var(--rk-text-3); font-weight: 700; }

/* 为什么是我们 / 优势清单区块 */
.rk-why { padding: 56px 0 8px; }
.rk-why__intro {
  margin: 0 0 28px; max-width: 780px; font-size: 16px;
  color: var(--rk-text-2); line-height: 1.8;
}
.rk-why__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 760px) { .rk-why__grid { grid-template-columns: 1fr; } }
.rk-why__item {
  display: flex; gap: 14px; align-items: flex-start;
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius); padding: 20px; box-shadow: var(--rk-shadow-sm);
}
.rk-why__check {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 16px;
  background: linear-gradient(135deg, var(--rk-primary), var(--rk-accent));
}
.rk-why__item h4 { margin: 0 0 4px; font-size: 15.5px; }
.rk-why__item p { margin: 0; font-size: 13px; color: var(--rk-text-3); line-height: 1.6; }

/* ==========================================================
   ResKit for Typecho - 产品展示增强层
   在原 ResKit 样式之上补充：产品卡片增强 + 产品详情页
   配色沿用主题变量，保证与站点其它区块统一
   ========================================================== */

/* ---------- 产品卡片增强 ---------- */
.rk-card { display: flex; flex-direction: column; }
.rk-card__thumb { position: relative; }
.rk-card__cover {
  height: 100%; min-height: 148px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--rk-primary) 0%, var(--rk-accent) 100%);
}
.rk-card__cover.is-p2  { background: linear-gradient(135deg, #f59e0b 0%, #e5484d 100%); }
.rk-card__cover.is-p3  { background: linear-gradient(135deg, var(--rk-vip) 0%, var(--rk-primary) 100%); }
.rk-card__cover.is-p4  { background: linear-gradient(135deg, #10b981 0%, var(--rk-accent) 100%); }
.rk-card__cover span {
  color: #fff; font-size: 20px; font-weight: 700; letter-spacing: -.4px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .18); padding: 0 16px; text-align: center;
}
.rk-card__tagline { font-size: 13px; color: var(--rk-primary); font-weight: 600; margin-bottom: 8px; }
.rk-card__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.rk-card__tags i {
  font-style: normal; font-size: 11.5px; padding: 2px 8px; border-radius: 6px;
  background: var(--rk-surface-2); color: var(--rk-text-2);
}
.rk-card__acts { display: flex; gap: 8px; }
.rk-card__acts .rk-btn { height: 34px; padding: 0 14px; font-size: 13px; }
.rk-card__meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.rk-card__meta .rk-card__price { margin-left: auto; font-weight: 700; color: var(--rk-warning); }

/* 购买按钮：橙色，用于转化位 */
.rk-btn--buy {
  background: #ff6b3c; color: #fff; border: 1px solid #ff6b3c;
}
.rk-btn--buy:hover { background: #e8541f; border-color: #e8541f; }

/* ---------- 产品详情页布局 ---------- */
.rk-pd { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: start; }
.rk-pd__cover {
  height: 240px; border-radius: var(--rk-radius-lg); display: grid; place-items: center;
  margin-bottom: 26px; background: linear-gradient(135deg, var(--rk-primary) 0%, var(--rk-accent) 100%);
}
.rk-pd__cover span { color: #fff; font-size: 32px; font-weight: 700; text-shadow: 0 3px 14px rgba(0,0,0,.2); }
.rk-pd__block { margin-bottom: 34px; }
.rk-pd__block h2 {
  font-size: 19px; font-weight: 700; margin-bottom: 16px;
  padding-left: 11px; border-left: 3px solid var(--rk-primary);
}
.rk-pd__lead { font-size: 16px; color: var(--rk-text-2); margin-bottom: 30px; }

/* 功能特性：双列勾选项 */
.rk-feat { display: grid; grid-template-columns: 1fr 1fr; gap: 13px 20px; }
.rk-feat li { display: flex; gap: 9px; font-size: 14px; color: var(--rk-text-2); }
.rk-feat li::before {
  content: ''; flex: 0 0 18px; height: 18px; margin-top: 3px; border-radius: 50%;
  background: var(--rk-primary-soft); position: relative;
}
.rk-feat li::after {
  content: ''; position: relative;
}

/* 更新日志 */
.rk-log { border: 1px solid var(--rk-border); border-radius: var(--rk-radius); overflow: hidden; }
.rk-log li {
  display: flex; gap: 14px; padding: 14px 18px; font-size: 14px;
  border-bottom: 1px solid var(--rk-border);
}
.rk-log li:last-child { border-bottom: 0; }
.rk-log li:nth-child(odd) { background: var(--rk-surface-2); }
.rk-log .v { flex: 0 0 72px; font-weight: 700; }
.rk-log .d { flex: 0 0 88px; color: var(--rk-text-3); font-size: 13px; }
.rk-log .t { color: var(--rk-text-2); }

/* 粘性购买卡 */
.rk-buy {
  position: sticky; top: calc(var(--rk-header-h) + 20px);
  background: var(--rk-surface); border: 1px solid var(--rk-border);
  border-radius: var(--rk-radius-lg); padding: 24px; box-shadow: var(--rk-shadow-lg);
}
.rk-buy__price { display: flex; align-items: baseline; gap: 9px; }
.rk-buy__price b { font-size: 36px; font-weight: 800; color: #ff6b3c; line-height: 1.1; letter-spacing: -1px; }
.rk-buy__price b::before { content: '¥'; font-size: 18px; margin-right: 2px; }
.rk-buy__price del { font-size: 14px; color: var(--rk-text-3); }
.rk-buy__off {
  display: inline-block; margin: 6px 0 16px; padding: 2px 9px; border-radius: 6px;
  font-size: 12px; font-weight: 700; background: rgba(255, 107, 60, .12); color: #e8541f;
}
.rk-buy .rk-btn { width: 100%; margin-bottom: 10px; }
.rk-buy__note { font-size: 12px; color: var(--rk-text-3); text-align: center; margin-bottom: 16px; line-height: 1.7; }
.rk-buy__meta { border-top: 1px solid var(--rk-border); padding-top: 14px; }
.rk-buy__meta div { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; font-size: 13px; }
.rk-buy__meta span { color: var(--rk-text-3); }
.rk-buy__meta b { font-weight: 600; text-align: right; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .rk-pd { grid-template-columns: 1fr; }
  .rk-buy { position: static; }
  .rk-feat { grid-template-columns: 1fr; }
}