/* ============================================================
   生活分享 · 全局样式
   个人生活分享博客（旅行游记 / 摄影作品 / 生活随笔）
   技术：HTML5 + CSS3 原生实现，响应式支持 PC / 平板 / 手机
   ============================================================ */

:root {
    /* 色彩 */
    --color-bg: #f7f4ee;
    --color-surface: #ffffff;
    --color-text: #2b2622;
    --color-text-soft: #5c554d;
    --color-muted: #948c7d;
    --color-line: #e8e2d6;
    --color-primary: #35507a;        /* 深靛蓝，主色 */
    --color-primary-dark: #2a4062;
    --color-accent: #3f7d5a;         /* 苔藓绿，辅助色 */
    --color-gold: #c9a227;
    --color-night: #1d2430;

    /* 形状与阴影 */
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 6px 24px rgba(43, 38, 34, .08);
    --shadow-lg: 0 14px 44px rgba(43, 38, 34, .13);

    /* 布局 */
    --container: 1080px;
    --nav-h: 64px;

    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun",
                  "Noto Serif SC", serif;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

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

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

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary-dark); }
ul { list-style: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }

.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;
}

/* ---------- 导航栏 ---------- */
.navbar {
    position: sticky; top: 0; z-index: 100;
    height: var(--nav-h);
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-line);
}

.nav-inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 20px; font-weight: 700; color: var(--color-text); letter-spacing: 1px;
}
.logo i { color: var(--color-primary); font-size: 22px; }
.logo-img { width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0; }
.logo:hover { color: var(--color-primary); }

.nav-toggle {
    display: none;
    background: none; border: none; font-size: 22px;
    color: var(--color-text); cursor: pointer; padding: 6px;
}

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
    display: block; padding: 8px 14px;
    color: var(--color-text-soft); font-size: 15px; border-radius: var(--radius-sm);
}
.nav-menu a:hover { color: var(--color-primary); background: rgba(53, 80, 122, .06); }
.nav-menu a.active { color: var(--color-primary); font-weight: 600; background: rgba(53, 80, 122, .1); }

/* 移动端导航 */
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-menu {
        position: absolute; top: var(--nav-h); left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-line);
        box-shadow: var(--shadow);
        max-height: 0; overflow: hidden; transition: max-height .3s ease;
    }
    .nav-menu.open { max-height: 320px; }
    .nav-menu a { padding: 14px 24px; border-radius: 0; border-top: 1px solid var(--color-line); }
}

/* ---------- 通用区块 ---------- */
.section { padding: 56px 0; }
.section-title {
    display: flex; align-items: center; gap: 12px;
    font-size: 24px; font-weight: 700; margin-bottom: 8px;
}
.section-title i { color: var(--color-primary); font-size: 20px; }
.section-sub { color: var(--color-muted); font-size: 14px; margin-bottom: 28px; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 22px; border-radius: 999px;
    background: var(--color-primary); color: #fff;
    font-size: 14px; font-weight: 600; border: none; cursor: pointer;
    transition: background .2s, transform .2s;
}
.btn:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }

.badge {
    display: inline-block; padding: 3px 12px; border-radius: 999px;
    font-size: 12px; font-weight: 600; line-height: 1.6;
    background: rgba(53, 80, 122, .1); color: var(--color-primary);
}
.badge.green { background: rgba(63, 125, 90, .12); color: var(--color-accent); }
.badge.gold { background: rgba(201, 162, 39, .14); color: #8f7317; }

.muted { color: var(--color-muted); }
.text-center { text-align: center; }

/* ---------- 首页 · 轮播（全宽模糊背景 + 居中清晰幻灯片） ---------- */
.hero {
    --hero-h: 420px;              /* 清晰幻灯片高度，可配置 */
    position: relative;
    width: 100%;                  /* 外层容器通栏全宽 = 100% */
    padding: 22px 0;              /* 上下留出边距，让模糊背景露出 */
    overflow: hidden;
    background: var(--color-night);
}

/* 模糊背景：当前幻灯片图片放大模糊，占满整个通栏容器（100% 全宽） */
.hero::before {
    content: "";
    position: absolute; inset: 0;
    z-index: 0; pointer-events: none;
    background-image: var(--hero-bg, none);
    background-size: cover;
    background-position: center;
    filter: blur(20px) saturate(1.25);
    transform: scale(1.12);       /* 放大，避免模糊边缘露出 */
}

/* 清晰幻灯片：宽度与下方栏目一致（--container），水平居中显示在最上方 */
.hero-inner {
    position: relative; z-index: 1;
    max-width: var(--container);
    margin: 0 auto;
    height: var(--hero-h);
}
.hero-viewport { position: relative; width: 100%; height: 100%; overflow: hidden; border-radius: 5px; }

/* 滑动轨道：宽度 = 100% * 幻灯片数，靠 translateX 平滑左滑 */
.hero-track {
    display: flex; height: 100%;
    transition: transform .4s ease;   /* 0.3~0.5s 平滑左滑 */
    will-change: transform;
}
.hero-track.no-anim { transition: none; }

.hero-slide { position: relative; flex: 0 0 100%; height: 100%; }
.hero-slide img {
    width: 100%; height: 100%;
    object-fit: cover;                /* 图片居中裁剪 */
}
/* 竖图自适应：完整显示不裁剪（轮播两侧由模糊背景补位） */
.hero-slide img.is-portrait { object-fit: contain; }
/* 整张轮播图可点击跳转 */
.hero-slide-link { position: absolute; inset: 0; z-index: 1; display: block; }
.hero-slide-link img { transition: filter .3s ease; }
.hero-slide-link:hover img { filter: brightness(.88); }
.hero-slide::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(20,16,12,0) 45%, rgba(20,16,12,.55) 100%);
}

.hero-content {
    position: absolute; left: 0; bottom: 0; z-index: 2;
    padding: 0 20px 48px; color: #fff; max-width: 640px;
}
.hero-content .badge { background: rgba(255,255,255,.22); color: #fff; font-size: 11px; }
.hero-content h2 {
    font-size: 22px; line-height: 1.4; margin: 8px 0 12px;
    text-shadow: 0 2px 12px rgba(0,0,0,.4);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hero-link {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 16px; border-radius: 999px;
    background: #fff; color: var(--color-primary);
    font-size: 13px; font-weight: 600;
    transition: background .2s, color .2s;
}
.hero-link:hover { background: var(--color-primary); color: #fff; }

/* 左右箭头（相对清晰幻灯片区域定位） */
.hero-controls {
    position: absolute; top: 50%; left: 0; right: 0; z-index: 5;
    transform: translateY(-50%);
    display: flex; justify-content: space-between; padding: 0 10px;
    pointer-events: none;
}
.hero-controls button {
    pointer-events: auto; width: 38px; height: 38px; border-radius: 50%;
    border: none; background: rgba(0,0,0,.28); color: #fff;
    font-size: 14px; cursor: pointer;
    -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
    transition: background .2s, transform .2s;
}
.hero-controls button:hover { background: var(--color-primary); transform: scale(1.08); }

/* 圆点指示器：底部居中、半透明背景、激活实心亮色 */
.hero-dots {
    position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
    display: flex; align-items: center; gap: 8px; z-index: 6;
    padding: 7px 13px; border-radius: 999px;
    background: rgba(15, 12, 10, .38);
    -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}
.hero-dots button {
    width: 9px; height: 9px; padding: 0; border: none; border-radius: 50%;
    background: rgba(255,255,255,.45); cursor: pointer;
    transition: background .25s, transform .25s, box-shadow .25s;
}
.hero-dots button:hover { background: rgba(255,255,255,.85); }
.hero-dots button.active {
    background: #fff; transform: scale(1.3);
    box-shadow: 0 0 0 3px rgba(255,255,255,.3);
}

@media (max-width: 768px) {
    .hero { padding: 12px 0; }
    .hero-content { padding-bottom: 52px; }
    .hero-content h2 { font-size: 19px; }
    .hero-controls { display: none; }
}

/* ---------- 卡片 ---------- */
.card-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.card {
    background: var(--color-surface); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow);
    display: flex; flex-direction: column;
    transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.card-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.card:hover .card-media img { transform: scale(1.05); }
/* 竖图自适应：卡片/摄影/随笔完整显示不裁剪（详情页封面铺满容器除外） */
.card-media img.is-portrait,
.photo-media img.is-portrait,
.list-media img.is-portrait { object-fit: contain; }
.card-media .badge { position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.9); }

.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body h3 { font-size: 17px; line-height: 1.5; }
.card-body h3 a { color: var(--color-text); }
.card-body h3 a:hover { color: var(--color-primary); }
.card-summary { color: var(--color-text-soft); font-size: 14px; line-height: 1.7; flex: 1; }
.card-meta {
    display: flex; align-items: center; gap: 14px;
    color: var(--color-muted); font-size: 13px;
    border-top: 1px dashed var(--color-line); padding-top: 12px;
}
.card-meta i { font-size: 12px; }

/* 首页 · 栏目入口 */
.cat-grid {
    display: grid; gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.cat-card {
    position: relative; border-radius: var(--radius); overflow: hidden;
    aspect-ratio: 16 / 9; display: block; color: #fff;
    box-shadow: var(--shadow);
}
.cat-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cat-card:hover img { transform: scale(1.06); }
.cat-card::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(20,16,12,0) 40%, rgba(20,16,12,.68) 100%);
}
.cat-card .cat-info { position: absolute; left: 20px; right: 20px; bottom: 18px; z-index: 2; }
.cat-card .cat-info h3 { font-size: 22px; margin-bottom: 4px; }
.cat-card .cat-info p { font-size: 13px; opacity: .9; }

/* ---------- 列表页横幅 ---------- */
.page-banner {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary) 55%, #5f80b4);
    color: #fff; padding: 56px 0 48px;
}
.page-banner h1 { font-size: 30px; display: flex; align-items: center; gap: 12px; }
.page-banner h1 i { font-size: 26px; opacity: .9; }
.page-banner p { margin-top: 10px; max-width: 640px; opacity: .92; font-size: 15px; }
/* 面包屑（统一组件样式：各页面同色、同字号、同分隔符） */
.breadcrumb {
    display: flex; flex-wrap: wrap; align-items: center;
    gap: 4px; font-size: 13px; color: var(--color-muted);
}
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-primary); text-decoration: underline; }
.breadcrumb .sep { margin: 0 6px; color: var(--color-line); }

/* 深色横幅（列表页/关于页）上的面包屑：仅适配对比度，其余样式一致 */
.page-banner .breadcrumb { margin-top: 14px; color: rgba(255, 255, 255, .85); }
.page-banner .breadcrumb a { color: rgba(255, 255, 255, .92); }
.page-banner .breadcrumb a:hover { color: #fff; text-decoration: underline; }
.page-banner .breadcrumb .sep { color: rgba(255, 255, 255, .5); }

/* 详情页面包屑：居中文区，与横幅页同组件 */
.article .breadcrumb { max-width: 760px; margin: 0 auto 24px; }

/* 摄影网格：图片为主的展示 */
.photo-grid {
    display: grid; gap: 18px;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}
.photo-card {
    background: var(--color-surface); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow);
    transition: transform .25s ease, box-shadow .25s ease;
}
.photo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.photo-card .photo-media { aspect-ratio: 4 / 3; overflow: hidden; }
.photo-card .photo-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.photo-card:hover .photo-media img { transform: scale(1.06); }
.photo-card .photo-info { padding: 14px 16px 16px; }
.photo-card .photo-info h3 { font-size: 15px; margin-bottom: 4px; }
.photo-card .photo-info h3 a { color: var(--color-text); }
.photo-card .photo-info h3 a:hover { color: var(--color-primary); }
.photo-card .photo-info p { font-size: 13px; color: var(--color-muted); }

/* 随笔列表：横向卡片 */
.list-block { display: flex; flex-direction: column; gap: 18px; }
.list-card {
    display: flex; gap: 20px; align-items: stretch;
    background: var(--color-surface); border-radius: var(--radius);
    box-shadow: var(--shadow); overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease;
}
.list-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.list-card .list-media { flex: 0 0 220px; min-height: 140px; overflow: hidden; }
.list-card .list-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.list-card:hover .list-media img { transform: scale(1.05); }
.list-card .list-body { padding: 18px 22px; display: flex; flex-direction: column; gap: 8px; justify-content: center; }
.list-card .list-body h3 { font-size: 18px; }
.list-card .list-body h3 a { color: var(--color-text); }
.list-card .list-body h3 a:hover { color: var(--color-primary); }
.list-card .list-body p { color: var(--color-text-soft); font-size: 14px; }
.list-card .list-body .card-meta { border: none; padding: 0; }

@media (max-width: 768px) {
    .list-card { flex-direction: column; }
    .list-card .list-media { flex: none; aspect-ratio: 16 / 9; }
}

/* ---------- 文章详情页 ---------- */
.article { padding: 40px 0 64px; }
.article-header { text-align: center; max-width: 760px; margin: 0 auto 30px; }
.article-header h1 { font-size: 30px; line-height: 1.45; margin: 14px 0 16px; }
.article-meta {
    display: flex; justify-content: center; align-items: center;
    gap: 18px; flex-wrap: wrap; color: var(--color-muted); font-size: 14px;
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { font-size: 12px; }

.article-cover {
    max-width: 760px; /* 与正文文字同宽，居中 */
    margin: 0 auto 36px;
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: auto; /* 自动适配图片比例：高度随图片伸缩，不裁切、不留边 */
}
.article-cover img { width: 100%; height: auto; display: block; object-fit: cover; }

.article-body {
    max-width: 760px; margin: 0 auto;
    font-family: var(--font-serif); font-size: 17px; line-height: 2;
    color: var(--color-text-soft);
}
.article-body h2 {
    font-family: var(--font-sans);
    font-size: 22px; color: var(--color-text);
    margin: 40px 0 14px; padding-left: 14px;
    border-left: 4px solid var(--color-primary);
}
.article-body h3 { font-family: var(--font-sans); font-size: 18px; color: var(--color-text); margin: 28px 0 10px; }
.article-body p { margin-bottom: 18px; }
.article-body strong { color: var(--color-text); }
.article-body blockquote {
    margin: 24px 0; padding: 16px 22px;
    border-left: 4px solid var(--color-gold);
    background: rgba(201, 162, 39, .08);
    color: var(--color-text); font-style: normal;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-body figure { margin: 28px 0; }
/* 正文插图铺满容器宽度 */
.article-body figure img {
    width: 100%; height: auto; display: block;
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.article-body figcaption {
    text-align: center; font-family: var(--font-sans);
    font-size: 13px; color: var(--color-muted); margin-top: 10px;
}
/* 正文列表 */
.article-body ul {
    margin: 0 0 18px; padding-left: 24px;
    list-style: disc;
}
.article-body li { margin-bottom: 8px; }
.article-body li::marker { color: var(--color-primary); }

/* 代码：行内与代码块 */
.article-body code {
    font-family: Consolas, Menlo, Monaco, "Courier New", monospace;
    font-size: .92em;
    background: rgba(53, 80, 122, .1);
    color: var(--color-primary-dark);
    padding: 2px 6px; border-radius: 5px;
}
.article-body pre {
    margin: 24px 0; padding: 18px 20px;
    background: #0f1c2e; color: #d6e4f0;
    border-radius: var(--radius); overflow-x: auto;
    font-size: 13.5px; line-height: 1.75;
    box-shadow: var(--shadow);
}
.article-body pre code {
    background: none; color: inherit; padding: 0; font-size: inherit;
}

.article-tags { max-width: 760px; margin: 36px auto 0; display: flex; gap: 10px; flex-wrap: wrap; }

.article-nav {
    max-width: 760px; margin: 44px auto 0;
    display: flex; justify-content: space-between; gap: 16px;
}
.article-nav a {
    flex: 1; padding: 16px 18px; background: var(--color-surface);
    border: 1px solid var(--color-line); border-radius: var(--radius);
    color: var(--color-text-soft); font-size: 14px;
    transition: all .2s;
}
.article-nav a:hover { border-color: var(--color-primary); color: var(--color-primary); box-shadow: var(--shadow); }
.article-nav a .dir { display: block; font-size: 12px; color: var(--color-muted); margin-bottom: 4px; }

/* 详情页 · 返回首页 */
.article-back { max-width: 760px; margin: 22px auto 0; text-align: center; }

/* ---------- 关于页 ---------- */
.about-card {
    background: var(--color-surface); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: 40px;
}
.about-hero { display: flex; gap: 32px; align-items: center; margin-bottom: 32px; }
.about-avatar {
    flex: 0 0 120px; width: 120px; height: 120px; border-radius: 50%;
    overflow: hidden; box-shadow: var(--shadow-lg);
}
.about-avatar img { width: 100%; height: 100%; object-fit: cover; }
.about-hero h1 { font-size: 26px; margin-bottom: 8px; }
.about-hero p { color: var(--color-text-soft); font-size: 15px; }

.about-section { margin-bottom: 28px; }
.about-section h2 {
    font-size: 19px; display: flex; align-items: center; gap: 10px;
    margin-bottom: 14px; color: var(--color-text);
}
.about-section h2 i { color: var(--color-primary); font-size: 17px; }
.about-section p { color: var(--color-text-soft); margin-bottom: 10px; }

.timeline { border-left: 2px solid var(--color-line); padding-left: 22px; display: flex; flex-direction: column; gap: 18px; }
.timeline li { position: relative; }
.timeline li::before {
    content: ""; position: absolute; left: -28px; top: 7px;
    width: 10px; height: 10px; border-radius: 50%;
    background: var(--color-primary); border: 2px solid var(--color-bg);
}
.timeline .tl-year { font-size: 13px; color: var(--color-muted); font-weight: 600; }
.timeline .tl-text { font-size: 15px; color: var(--color-text-soft); margin-top: 2px; }

@media (max-width: 768px) {
    .about-hero { flex-direction: column; text-align: center; }
}

/* ---------- 404 ---------- */
.error-page { min-height: 60vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 60px 20px; }
.error-code { font-size: 96px; font-weight: 800; color: var(--color-primary); line-height: 1; }
.error-page h1 { font-size: 24px; margin: 16px 0 10px; }
.error-page p { color: var(--color-muted); margin-bottom: 28px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #1e2a3f; color: #cfc8bd; margin-top: 64px; }
.footer-grid {
    display: grid; gap: 36px; padding: 48px 20px 36px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.footer-grid h3 { color: #fff; font-size: 18px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-grid h3 .logo-img { width: 26px; height: 26px; border-radius: 6px; }
.footer-grid h3 i { color: var(--color-gold); }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-grid p { font-size: 14px; line-height: 1.9; opacity: .85; }
.footer-grid ul { display: flex; flex-direction: column; gap: 8px; }
.footer-grid ul a { color: #cfc8bd; font-size: 14px; opacity: .85; }
.footer-grid ul a:hover { color: #fff; opacity: 1; }
.footer-legal a { color: #cfc8bd; font-size: 13px; opacity: .85; }
.footer-legal a:hover { color: #fff; opacity: 1; }
.footer-legal p { display: flex; align-items: center; gap: 6px; }
.footer-legal i { color: var(--color-gold); }
/* 公网安备图标（beian.png，与页面同级目录）：行内显示，与备案号同行 */
.footer-legal .beian-icon {
    width: 16px; height: 16px;
    display: inline-block;
    vertical-align: -3px;
    margin-right: 4px;
}

.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; }
.footer-bottom p { text-align: center; font-size: 13px; opacity: .7; }

@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 26px; }
}

/* ---------- 加载状态 / 提示 ---------- */
.loading, .empty {
    text-align: center; padding: 48px 20px; color: var(--color-muted); font-size: 15px;
}
.loading i { margin-right: 8px; }

/* ---------- 动画 ---------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; }
.reveal.visible { animation: fadeUp .6s ease forwards; }

/* ---------- 图片放大查看（模态：原始分辨率渲染，缩放清晰） ---------- */
.article-body img, .article-cover img { cursor: zoom-in; }

.image-modal {
    position: fixed; inset: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden;
    transition: opacity .25s ease, visibility .25s ease;
}
.image-modal.active { opacity: 1; visibility: visible; }

.image-modal-overlay {
    position: absolute; inset: 0;
    background: rgba(12, 10, 8, .92);
}

.image-modal-content {
    position: relative; z-index: 2;
    max-width: 92vw; max-height: 88vh;
    display: flex; flex-direction: column; align-items: center;
}

/* 舞台：负责裁剪与居中；图片保持原始分辨率，缩放不模糊 */
.image-modal-stage {
    max-width: 90vw; max-height: 78vh;
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    border-radius: 6px;
    background: rgba(0, 0, 0, .12);
}
.image-modal-img {
    max-width: none !important;
    max-height: none !important;
    width: auto; height: auto;
    display: block;
    transform-origin: center center;
    will-change: transform;
    cursor: zoom-in; user-select: none;
    box-shadow: 0 12px 44px rgba(0, 0, 0, .55);
}

.image-modal-close {
    position: absolute; top: -54px; right: 0;
    width: 40px; height: 40px; border: none; cursor: pointer;
    background: rgba(255, 255, 255, .12); color: #fff;
    border-radius: 50%; font-size: 24px; line-height: 1;
    display: flex; align-items: center; justify-content: center;
    transition: background .2s;
}
.image-modal-close:hover { background: var(--color-primary); }

.image-modal-zoom {
    margin-top: 16px;
    display: flex; align-items: center; gap: 8px;
    background: rgba(20, 17, 14, .6); border-radius: 999px; padding: 6px 12px;
    -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.zoom-btn {
    border: none; background: rgba(255, 255, 255, .16); color: #fff;
    border-radius: 50%; width: 30px; height: 30px; font-size: 14px;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: background .2s;
}
.zoom-btn:hover { background: var(--color-primary); }
.zoom-level { color: #fff; font-size: 12px; min-width: 46px; text-align: center; }


/* ---------- 分享面板（微信二维码等） ---------- */
.article-header { position: relative; }
.share-btn {
    display: inline-flex; align-items: center; gap: 6px;
    border: 1.5px solid var(--color-primary); background: transparent;
    color: var(--color-primary); border-radius: 999px;
    padding: 4px 14px; font-size: 13px; font-weight: 600; cursor: pointer;
    transition: background .2s, color .2s;
}
.share-btn:hover { background: var(--color-primary); color: #fff; }

.share-panel {
    position: absolute; left: 50%; top: calc(100% + 10px);
    transform: translateX(-50%) translateY(8px);
    width: 280px; z-index: 60;
    background: var(--color-surface);
    border: 1px solid var(--color-line); border-radius: var(--radius);
    box-shadow: var(--shadow-lg); padding: 16px 18px;
    text-align: center;
    opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.share-panel.open { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.share-panel-head {
    display: flex; align-items: center; justify-content: space-between;
    font-weight: 700; font-size: 15px; margin-bottom: 12px;
}
.share-panel-close {
    border: none; background: none; cursor: pointer; color: var(--color-muted);
    font-size: 18px; line-height: 1; padding: 2px 4px;
}
.share-panel-close:hover { color: var(--color-primary); }
.share-qr { display: flex; justify-content: center; min-height: 180px; align-items: center; }
.share-qr img, .share-qr canvas, .share-qr table { margin: 0 auto; border-radius: 4px; }
.share-qr-loading, .share-qr-fallback { color: var(--color-muted); font-size: 13px; }
.share-qr-hint { font-size: 12px; color: var(--color-muted); line-height: 1.8; margin: 8px 0 12px; }
.share-actions { display: flex; gap: 8px; justify-content: center; }
.share-action {
    display: inline-flex; align-items: center; gap: 6px;
    border: 1px solid var(--color-line); background: var(--color-bg);
    color: var(--color-text); border-radius: 999px;
    padding: 7px 14px; font-size: 13px; cursor: pointer;
    transition: all .2s;
}
.share-action:hover { border-color: var(--color-primary); color: var(--color-primary); }
.share-wechat-note { font-size: 11px; color: var(--color-muted); line-height: 1.8; margin-top: 12px; }

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; }
}