/* ============================================================
   刺猬星球super-i — 编辑部风格
   暖白纸面 · 墨色正文 · 黄铜点缀 · 大留白
   ============================================================ */

:root {
    color-scheme: light;
    --paper:        #f6f4ef;
    --surface:      #fffdf9;
    --sunken:       #ece8df;
    --ink:          #15171a;
    --ink-2:        #2c3037;
    --body:         #363a41;
    --muted:        #7d8188;
    --line:         rgba(21, 23, 26, 0.09);
    --line-strong:  rgba(21, 23, 26, 0.18);
    --brass:        #b38a4f;
    --brass-deep:   #8a6633;
    --brass-soft:   rgba(179, 138, 79, 0.13);
    --jade:         #1f4d3f;
    --radius-xl:    24px;
    --radius-lg:    18px;
    --radius:       14px;
    --shadow-cover: 0 40px 80px -48px rgba(21, 23, 26, 0.45);
    --sans:   -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    --serif:  'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
    --mono:   'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--ink);
    background: var(--paper);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, p, ol, ul, figure { margin: 0; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; border-radius: 4px; }

.container       { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.container-wide  { width: 100%; max-width: 1180px; margin-left: auto; margin-right: auto; padding: 0 32px; }
.container-narrow{ width: 100%; max-width: 860px;  margin-left: auto; margin-right: auto; padding: 0 32px; }

.eyebrow {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--brass-deep);
}

/* === 阅读进度 === */
.read-progress { display: none; position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 300; pointer-events: none; }
.read-progress span { display: block; height: 100%; background: var(--brass); transform: scaleX(0); transform-origin: left; }
.page-article .read-progress { display: block; }

/* === 页头 === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 200;
    background: rgba(246, 244, 239, 0.84);
    -webkit-backdrop-filter: saturate(160%) blur(18px);
    backdrop-filter: saturate(160%) blur(18px);
    border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.logo { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.logo-mark { display: inline-flex; }
.logo-text { font-size: 16px; font-weight: 700; letter-spacing: 0.02em; color: var(--ink); white-space: nowrap; }
.logo-text em { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--brass-deep); margin-left: 4px; letter-spacing: 0; }

.main-nav { display: flex; align-items: center; gap: 2px; flex: 1 1 auto; justify-content: center; }
.nav-link {
    padding: 7px 14px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-2);
    border-radius: 999px;
    transition: background-color .2s ease, color .2s ease;
}
.nav-link:hover { background: rgba(21, 23, 26, 0.06); }
.nav-link.active { background: var(--ink); color: var(--paper); }

.lang-switcher { display: inline-flex; align-items: center; gap: 2px; margin-left: 10px; padding-left: 12px; border-left: 1px solid var(--line-strong); }
.lang-link { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; padding: 4px 7px; border-radius: 6px; color: var(--muted); }
.lang-link:hover { color: var(--ink); background: rgba(21, 23, 26, 0.06); }
.lang-link.active { color: var(--ink); }

.header-cta {
    flex: 0 0 auto;
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px;
    font-size: 13px; font-weight: 600;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}
.header-cta span { font-size: 12px; color: var(--brass-deep); transition: color .2s ease; }
.header-cta:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.header-cta:hover span { color: var(--paper); }

.menu-toggle {
    display: none;
    width: 42px; height: 42px;
    margin-left: auto;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: transparent;
    cursor: pointer;
    flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.menu-toggle span { display: block; width: 16px; height: 1.5px; background: var(--ink); transition: transform .25s ease; }
.nav-open .menu-toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
.nav-open .menu-toggle span:last-child  { transform: translateY(-3.25px) rotate(-45deg); }

/* === 面包屑 === */
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; font-size: 13px; color: var(--muted); }
.breadcrumb li { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.breadcrumb li + li::before { content: "/"; color: var(--line-strong); }
.breadcrumb li[aria-current] { color: var(--ink-2); max-width: 32em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.breadcrumb a:hover { color: var(--ink); }

/* === 栏目页头 === */
.column-hero {
    padding: 40px 0 0;
    border-bottom: 1px solid var(--line);
    background:
        radial-gradient(900px 420px at 88% -20%, rgba(179, 138, 79, 0.16), transparent 62%),
        radial-gradient(640px 360px at -10% 120%, rgba(31, 77, 63, 0.07), transparent 60%);
}
.column-hero-grid { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: end; padding: 72px 0 0; }
.column-title {
    margin: 18px 0 22px;
    font-size: clamp(44px, 7vw, 92px);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: -0.03em;
    color: var(--ink);
}
.hero-highlight { color: var(--brass-deep); }
.column-desc { max-width: 620px; font-size: 18px; line-height: 1.8; color: var(--muted); }
.column-stat { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; padding-bottom: 8px; }
.column-stat-num { font-family: var(--serif); font-size: 104px; line-height: 0.9; color: var(--ink); font-variant-numeric: lining-nums; }
.column-stat-label { font-size: 13px; color: var(--muted); letter-spacing: 0.08em; }

.column-tabs { display: flex; gap: 8px; margin-top: 56px; padding-bottom: 28px; overflow-x: auto; scrollbar-width: none; }
.column-tabs::-webkit-scrollbar { display: none; }
.column-tab {
    flex: 0 0 auto;
    padding: 9px 18px;
    font-size: 14px; font-weight: 500;
    color: var(--ink-2);
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: rgba(255, 253, 249, 0.6);
    transition: all .2s ease;
}
.column-tab small { margin-left: 4px; font-size: 12px; color: var(--muted); }
.column-tab:hover { border-color: var(--ink); color: var(--ink); }
.column-tab.active { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* === 封面占位 === */
.media-placeholder {
    position: absolute; inset: 0;
    display: flex; align-items: flex-end; padding: 22px;
    background:
        radial-gradient(120% 90% at 100% 0%, rgba(179, 138, 79, 0.28), transparent 55%),
        linear-gradient(135deg, #ebe6db 0%, #dfd8ca 100%);
}
.media-placeholder span { font-family: var(--serif); font-style: italic; font-size: 22px; color: var(--brass-deep); }

/* === 头条 === */
.lead-story {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
    padding: 64px 0;
}
.lead-media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: var(--sunken);
    box-shadow: var(--shadow-cover);
}
.lead-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.7,.2,1); }
.lead-story:hover .lead-media img { transform: scale(1.035); }
.lead-body h2 { margin: 16px 0 18px; font-size: clamp(28px, 3.2vw, 40px); font-weight: 750; line-height: 1.25; letter-spacing: -0.015em; }
.lead-desc { font-size: 16px; line-height: 1.85; color: var(--muted); margin-bottom: 22px; }
.lead-body .story-meta { margin-bottom: 28px; }

.text-link {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 14px; font-weight: 600;
    padding-bottom: 3px;
    border-bottom: 1px solid var(--ink);
    transition: color .2s ease, border-color .2s ease, gap .2s ease;
}
.text-link:hover { color: var(--brass-deep); border-color: var(--brass); gap: 12px; }

/* 标题下划线动画 */
.lead-body h2 a, .story-card h3 a {
    background-image: linear-gradient(currentColor, currentColor);
    background-size: 0 1px;
    background-repeat: no-repeat;
    background-position: 0 100%;
    transition: background-size .35s ease;
}
.lead-body h2 a:hover, .story-card h3 a:hover { background-size: 100% 1px; }

/* === 卡片网格 === */
.story-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 56px 32px;
    padding: 56px 0 96px;
    border-top: 1px solid var(--line);
}
.story-card { display: flex; flex-direction: column; }
.story-media {
    position: relative;
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--sunken);
    margin-bottom: 20px;
}
.story-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s cubic-bezier(.2,.7,.2,1); }
.story-card:hover .story-media img { transform: scale(1.045); }
.story-kicker { font-size: 12px; font-weight: 600; letter-spacing: 0.14em; color: var(--brass-deep); margin-bottom: 8px; }
.story-card h3 { font-size: 19px; font-weight: 700; line-height: 1.48; letter-spacing: -0.005em; margin-bottom: 10px; }
.story-desc {
    font-size: 14px; line-height: 1.75; color: var(--muted); margin-bottom: 14px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.story-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0 14px; font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.story-meta > * + *::before { content: ""; display: inline-block; width: 3px; height: 3px; margin-right: 14px; border-radius: 50%; background: var(--line-strong); vertical-align: middle; }
.story-card .story-meta { margin-top: auto; }

.section-head { margin: 0 0 32px; }
.section-head h2 { margin-top: 8px; font-size: 32px; font-weight: 750; letter-spacing: -0.015em; }

/* === 空栏目 === */
.empty-state {
    margin: 72px 0 96px;
    padding: 96px 24px;
    text-align: center;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-xl);
    background: rgba(255, 253, 249, 0.7);
}
.empty-mark { display: inline-block; font-size: 26px; color: var(--brass); margin-bottom: 18px; }
.empty-state h2 { font-size: 26px; font-weight: 750; letter-spacing: -0.01em; margin-bottom: 10px; }
.empty-state p { color: var(--muted); font-size: 15px; }

/* === 分页 === */
.pagination { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; padding: 0 0 96px; }
.page-link {
    min-width: 44px; height: 44px; padding: 0 14px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--line-strong); border-radius: 999px;
    font-size: 14px; font-weight: 600; color: var(--ink-2);
    font-variant-numeric: tabular-nums;
    transition: all .2s ease;
}
.page-link:hover { border-color: var(--ink); color: var(--ink); }
.page-link.active { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.page-ellipsis { color: var(--muted); padding: 0 4px; }

/* === 文章页 · 头部 === */
.article-hero { padding: 48px 32px 48px; text-align: center; }
.article-hero .breadcrumb ol { justify-content: center; }
.chip {
    display: inline-block;
    margin: 36px 0 24px;
    padding: 6px 14px;
    font-size: 12px; font-weight: 600; letter-spacing: 0.12em;
    color: var(--brass-deep);
    background: var(--brass-soft);
    border-radius: 999px;
    transition: background-color .2s ease;
}
.chip:hover { background: rgba(179, 138, 79, 0.22); }
.article-title {
    max-width: 840px;
    margin: 0 auto 24px;
    font-size: clamp(32px, 4.6vw, 54px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--ink);
    text-wrap: balance;
}
.article-dek { max-width: 680px; margin: 0 auto 32px; font-size: 18px; line-height: 1.85; color: var(--muted); text-wrap: pretty; }
.article-meta { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 10px 14px; font-size: 13.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }
.byline { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-2); font-weight: 600; }
.avatar {
    display: inline-flex; align-items: center; justify-content: center;
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--ink); color: #c9a46a;
    font-size: 13px; font-weight: 700;
}
.avatar-lg { width: 54px; height: 54px; font-size: 19px; flex: 0 0 auto; }

.article-cover { margin-bottom: 72px; }
.article-cover img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: var(--radius-xl);
    background: var(--sunken);
    box-shadow: var(--shadow-cover);
}
.article-rule { height: 1px; background: var(--line); margin-bottom: 64px; padding: 0; max-width: 1116px; }

/* === 文章页 · 正文布局 === */
.article-shell { display: grid; grid-template-columns: minmax(0, 720px); justify-content: center; }
.article-shell.has-toc { grid-template-columns: 200px minmax(0, 720px); gap: 80px; }
.article-toc { position: sticky; top: 104px; align-self: start; max-height: calc(100vh - 140px); overflow-y: auto; }
.toc-title { font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.article-toc ol { list-style: none; padding: 0; }
.article-toc a {
    display: block;
    padding: 8px 0 8px 16px;
    font-size: 13.5px; line-height: 1.55;
    color: var(--muted);
    border-left: 2px solid var(--line);
    transition: color .2s ease, border-color .2s ease;
}
.article-toc a:hover { color: var(--ink); }
.article-toc a.active { color: var(--ink); border-left-color: var(--brass); font-weight: 600; }

/* === 文章页 · 正文排版 === */
.article-prose { min-width: 0; font-size: 17.5px; line-height: 1.95; color: var(--body); counter-reset: sec; }
.article-prose p { margin: 0 0 1.35em; }
.article-prose strong { color: var(--ink); font-weight: 650; }

.article-prose > p:first-child {
    position: relative;
    margin-bottom: 56px;
    padding: 28px 32px 28px 36px;
    font-size: 17px; line-height: 1.85;
    color: var(--ink-2);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
}
.article-prose > p:first-child::before {
    content: "";
    position: absolute; left: 0; top: 24px; bottom: 24px;
    width: 3px; border-radius: 0 3px 3px 0;
    background: var(--brass);
}

.article-prose h2 {
    margin: 2.5em 0 0.9em;
    font-size: 28px; font-weight: 800; line-height: 1.35; letter-spacing: -0.012em;
    color: var(--ink);
    scroll-margin-top: 100px;
    text-wrap: balance;
}
.article-prose section:first-child > h2:first-child { margin-top: 0.4em; }
.article-prose h2:not([data-kind])::before {
    counter-increment: sec;
    content: counter(sec, decimal-leading-zero);
    display: block;
    margin-bottom: 12px;
    font-family: var(--serif); font-style: italic; font-weight: 400;
    font-size: 16px; letter-spacing: 0.04em;
    color: var(--brass-deep);
}
.article-prose h3 { margin: 2em 0 0.7em; font-size: 21px; font-weight: 750; line-height: 1.45; color: var(--ink); scroll-margin-top: 100px; }

.article-prose p[data-snippet] { padding-left: 20px; border-left: 2px solid var(--brass); color: var(--ink-2); }

.article-prose a { color: var(--jade); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; text-decoration-color: rgba(179, 138, 79, 0.6); transition: text-decoration-color .2s ease; }
.article-prose a:hover { text-decoration-color: var(--jade); }

.article-prose ul, .article-prose ol { margin: 0 0 1.4em; padding-left: 1.3em; }
.article-prose li { margin: 0.45em 0; padding-left: 0.2em; }
.article-prose li::marker { color: var(--brass); }

.article-prose blockquote {
    position: relative;
    margin: 2.2em 0;
    padding: 4px 0 4px 32px;
    font-size: 20px; line-height: 1.75;
    color: var(--ink-2);
    border-left: 2px solid var(--ink);
}
.article-prose blockquote p:last-child { margin-bottom: 0; }

.table-wrap { margin: 2.2em 0; overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.article-prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.65; }
.article-prose th { padding: 14px 18px; text-align: left; font-size: 13px; font-weight: 600; letter-spacing: 0.04em; color: var(--muted); background: #f2efe8; border-bottom: 1px solid var(--line); white-space: nowrap; }
.article-prose td { padding: 15px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article-prose tr:last-child td { border-bottom: 0; }
.article-prose td:first-child { color: var(--ink); font-weight: 600; white-space: nowrap; }

.article-prose code { font-family: var(--mono); font-size: 0.86em; padding: 0.15em 0.42em; border-radius: 6px; background: rgba(21, 23, 26, 0.06); color: var(--ink); }
.article-prose pre { margin: 2em 0; padding: 22px 24px; overflow-x: auto; border-radius: var(--radius); background: var(--ink); color: #ebe5d8; font-size: 14px; line-height: 1.7; }
.article-prose pre code { padding: 0; background: none; color: inherit; font-size: inherit; }
.article-prose img { margin: 2em 0; border-radius: var(--radius); }
.article-prose figure img { margin: 0; }
.article-prose hr { height: 1px; margin: 3em 0; border: 0; background: var(--line); }
.ai-image { margin: 2em 0; }
.ai-image figcaption, .article-prose figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); text-align: center; }

/* 常见问题 */
.article-prose .prose-faq {
    margin-top: 3.4em;
    padding: 40px 40px 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
}
.article-prose .prose-faq h2 { margin-top: 0; font-size: 24px; }
.article-prose .prose-faq h3 { margin: 0; padding: 22px 0 8px; font-size: 17px; line-height: 1.55; border-top: 1px solid var(--line); }
.article-prose .prose-faq h2 + h3 { border-top: 0; padding-top: 4px; }
.article-prose .prose-faq h3::before { content: "Q."; margin-right: 10px; font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--brass-deep); }
.article-prose .prose-faq h3 + p { font-size: 16px; line-height: 1.85; color: var(--body); margin-bottom: 0; padding-bottom: 22px; }

/* 延伸阅读 */
.article-prose .prose-further { margin-top: 3em; }
.article-prose .prose-further h2 { margin: 0 0 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.article-prose .prose-further ul { list-style: none; padding: 0; margin: 0; }
.article-prose .prose-further li { margin: 0; padding: 0; border-top: 1px solid var(--line); }
.article-prose .prose-further li:last-child { border-bottom: 1px solid var(--line); }
.article-prose .prose-further a {
    display: flex; justify-content: space-between; align-items: center; gap: 24px;
    padding: 18px 0;
    font-size: 16.5px; font-weight: 650; line-height: 1.5;
    color: var(--ink);
    text-decoration: none;
    transition: color .2s ease, padding .2s ease;
}
.article-prose .prose-further a::after { content: "→"; color: var(--brass); transition: transform .2s ease; }
.article-prose .prose-further a:hover { color: var(--jade); }
.article-prose .prose-further a:hover::after { transform: translateX(4px); }

/* 文末 */
.article-end { margin-top: 64px; padding-top: 36px; border-top: 1px solid var(--line); }
.tag-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 28px; }
.tag-label { margin-right: 6px; font-size: 12px; font-weight: 600; letter-spacing: 0.14em; color: var(--muted); }
.tag { padding: 6px 13px; font-size: 13px; line-height: 1.4; color: var(--ink-2); background: var(--sunken); border-radius: 999px; }
.author-card { display: flex; align-items: center; gap: 18px; padding: 24px 26px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.article-prose .author-name { margin: 0 0 2px; font-size: 16px; font-weight: 700; color: var(--ink); }
.article-prose .author-note { margin: 0; font-size: 14px; line-height: 1.7; color: var(--muted); }

.related { margin-top: 112px; padding-top: 72px; border-top: 1px solid var(--line); }
.related .story-grid { border-top: 0; padding-top: 0; }

/* === 关于页（沿用旧结构） === */
.about-page { max-width: 760px; margin: 48px auto 96px; }
.about-page .article-header h1 { font-size: clamp(32px, 4.6vw, 48px); font-weight: 800; letter-spacing: -0.02em; margin: 24px 0 12px; }
.about-tagline { font-size: 18px; color: var(--muted); }
.about-page .article-body { margin-top: 40px; font-size: 17px; line-height: 1.9; color: var(--body); }
.about-page .article-body h2 { margin: 2em 0 0.7em; font-size: 24px; font-weight: 800; color: var(--ink); }
.about-page .article-body p, .about-page .article-body ul { margin-bottom: 1.2em; }
.about-page .article-body li::marker { color: var(--brass); }

/* === 404 === */
.error-page { padding: 120px 0 112px; text-align: center; }
.error-code { font-family: var(--serif); font-style: italic; font-size: clamp(96px, 16vw, 168px); line-height: 1; color: var(--ink); margin-bottom: 16px; }
.error-page h1 { font-size: 28px; font-weight: 800; letter-spacing: -0.01em; margin-bottom: 10px; }
.error-page > p { color: var(--muted); }
.error-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 40px 0 36px; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 26px;
    font-size: 14px; font-weight: 600;
    color: var(--paper); background: var(--ink);
    border-radius: 999px;
    transition: background-color .2s ease;
}
.btn:hover { background: var(--jade); }

/* === 页脚 === */
.site-footer { margin-top: 128px; padding: 88px 0 40px; background: var(--ink); color: #a9a59b; }
.footer-top { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 64px; }
.footer-eyebrow { font-size: 18px; font-weight: 700; color: var(--paper); margin-bottom: 22px; letter-spacing: 0.02em; }
.footer-eyebrow em { font-family: var(--serif); font-style: italic; font-weight: 400; color: #c9a46a; margin-left: 4px; }
.footer-statement { max-width: 520px; font-size: clamp(22px, 2.3vw, 28px); font-weight: 500; line-height: 1.55; letter-spacing: -0.01em; color: #ece6d9; }
.footer-nav h4 { margin-bottom: 20px; font-size: 12px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: #77736b; }
.footer-nav ul { list-style: none; padding: 0; }
.footer-nav li { margin-bottom: 11px; }
.footer-nav a { font-size: 14.5px; color: #d8d2c5; transition: color .2s ease; }
.footer-nav a:hover { color: #c9a46a; }
.footer-bottom {
    display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
    margin-top: 72px; padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 12.5px; color: #77736b;
}
.footer-beian a:hover { color: #c9a46a; }

/* === 响应式 === */
@media (max-width: 1120px) {
    .article-shell.has-toc { grid-template-columns: minmax(0, 720px); gap: 0; }
    .article-toc { display: none; }
    .story-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lead-story { gap: 40px; }
    .lang-switcher { display: none; }
}

@media (max-width: 900px) {
    .header-inner { height: 64px; }
    .menu-toggle { display: inline-flex; }
    .header-cta { display: none; }
    .main-nav {
        display: none;
        position: fixed; top: 64px; left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 4px;
        padding: 16px 20px 28px;
        background: var(--paper);
        border-bottom: 1px solid var(--line);
        box-shadow: 0 24px 40px -24px rgba(21, 23, 26, 0.25);
    }
    .nav-open .main-nav { display: flex; }
    .nav-link { padding: 12px 16px; font-size: 16px; border-radius: 12px; }
    .nav-open .lang-switcher { display: flex; margin: 10px 0 0; padding: 14px 0 0; border-left: 0; border-top: 1px solid var(--line); }

    .column-hero-grid { grid-template-columns: 1fr; gap: 24px; padding-top: 48px; }
    .column-stat { flex-direction: row; align-items: baseline; gap: 10px; }
    .column-stat-num { font-size: 56px; }
    .column-tabs { margin-top: 36px; }

    .lead-story { grid-template-columns: 1fr; gap: 28px; padding: 44px 0; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 48px 32px; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
    .container, .container-wide, .container-narrow { padding: 0 20px; }
    .article-hero { padding: 32px 20px 36px; }
    .chip { margin-top: 28px; }
    .article-dek { font-size: 16.5px; }
    .article-cover { margin-bottom: 48px; }
    .article-cover img { border-radius: var(--radius); }
    .article-prose { font-size: 17px; line-height: 1.9; }
    .article-prose > p:first-child { padding: 22px 22px 22px 26px; margin-bottom: 40px; }
    .article-prose h2 { font-size: 24px; }
    .article-prose h3 { font-size: 19px; }
    .article-prose .prose-faq { padding: 28px 22px 8px; border-radius: var(--radius-lg); }
    .story-grid { grid-template-columns: 1fr; gap: 44px; padding-bottom: 72px; }
    .empty-state { padding: 64px 20px; margin: 48px 0 72px; }
    .related { margin-top: 80px; padding-top: 56px; }
    .site-footer { margin-top: 96px; padding-top: 64px; }
    .footer-bottom { flex-direction: column; margin-top: 48px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}