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

:root {
    --paper: #f5f1e8;
    --paper-2: #fbf8f1;
    --paper-3: #efeade;
    --ink: #1e1b17;
    --ink-2: #4a453d;
    --ink-3: #8a8376;
    --line: #d8d0c0;
    --line-soft: #e6dfd1;

    --accent: #a8322a;
    --accent-wash: rgba(168,50,42,.07);
    --accent-soft: rgba(168,50,42,.16);

    --green: #4b6b52;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
    --font-kai: "Kaiti SC", "STKaiti", "KaiTi", "楷体", var(--font-serif);
    --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "Courier New", monospace;
}

[data-theme="dark"] {
    --paper: #14130f;
    --paper-2: #1a1914;
    --paper-3: #211f19;
    --ink: #ece6d9;
    --ink-2: #c0b9aa;
    --ink-3: #8a8377;
    --line: #35322a;
    --line-soft: #2a2822;
    --green: #7d9c84;
}

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

body {
    font-family: var(--font-serif);
    background-color: var(--paper);
    color: var(--ink);
    line-height: 1.75;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    background-image:
        radial-gradient(1200px 620px at 8% -12%, rgba(30,27,23,.075), transparent 62%),
        radial-gradient(900px 520px at 96% 6%, rgba(30,27,23,.05), transparent 58%),
        radial-gradient(760px 700px at 45% 112%, rgba(30,27,23,.045), transparent 62%);
    background-attachment: fixed;
    transition: background-color .35s ease, color .3s ease;
}
[data-theme="dark"] body {
    background-image:
        radial-gradient(1200px 620px at 8% -12%, rgba(255,255,255,.035), transparent 62%),
        radial-gradient(900px 520px at 96% 6%, rgba(255,255,255,.025), transparent 58%),
        radial-gradient(760px 700px at 45% 112%, rgba(255,255,255,.02), transparent 62%);
}

/* 宣纸颗粒 */
body::before {
    content: '';
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    opacity: .5; mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='0.16'/%3E%3C/svg%3E");
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: .28; }

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

::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-3); }

/* ===================== 版式骨架 ===================== */
.layout {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 284px minmax(0, 1fr);
    min-height: 100vh;
}

/* ===================== 左侧 · 书页栏 ===================== */
.sidebar {
    position: sticky; top: 0; align-self: start;
    height: 100vh; overflow-y: auto;
    padding: 2.1rem 1.7rem 1.6rem;
    border-right: 1px solid var(--line);
    display: flex; flex-direction: column;
    background: linear-gradient(180deg, rgba(255,255,255,.42), transparent 34%);
}
[data-theme="dark"] .sidebar { background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 34%); }

.brand { display: flex; align-items: center; gap: .85rem; }

/* 落款印章 */
.seal {
    position: relative;
    width: 50px; height: 50px; flex-shrink: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: var(--accent); color: #fbf7ee;
    border-radius: 3px; transform: rotate(-2.5deg);
    font-family: var(--font-kai); font-size: .95rem; line-height: 1.05;
    letter-spacing: .04em; box-shadow: 0 2px 10px var(--accent-soft);
    overflow: hidden;
}
.seal::after {
    content: ''; position: absolute; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60'%3E%3Cfilter id='s'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='60' height='60' filter='url(%23s)' opacity='0.22'/%3E%3C/svg%3E");
    mix-blend-mode: multiply; pointer-events: none;
}
.seal img { width: 100%; height: 100%; object-fit: cover; }

.brand-text { min-width: 0; }
.brand-text h1 {
    font-size: 1.32rem; font-weight: 700; letter-spacing: .1em;
    line-height: 1.25; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.brand-text .sub {
    font-size: .66rem; color: var(--ink-3); font-weight: 400;
    letter-spacing: .18em; text-transform: uppercase;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.rule {
    height: 1px; margin: 1.5rem 0 1.3rem;
    background: linear-gradient(90deg, var(--ink-3), var(--line) 32%, transparent);
    opacity: .55;
}

.side-label {
    font-size: .66rem; font-weight: 500; color: var(--ink-3);
    letter-spacing: .38em; text-indent: .38em; margin-bottom: .7rem;
    display: flex; align-items: center; gap: .6rem;
}
.side-label::after {
    content: ''; flex: 1; height: 1px; background: var(--line-soft);
}

/* 联络 */
.contacts { margin-top: 1.5rem; }
.contact-list { list-style: none; }
.contact-item {
    display: flex; align-items: center; gap: .6rem;
    padding: .5rem 0; border-bottom: 1px dashed var(--line-soft);
    cursor: pointer; transition: color .2s ease;
    min-width: 0;
}
.contact-item:last-child { border-bottom: none; }
.contact-item:hover { color: var(--accent); }
.c-icon {
    width: 26px; height: 26px; flex-shrink: 0;
    display: grid; place-items: center; color: var(--ink-2);
    border: 1px solid var(--line); border-radius: 50%;
    transition: all .2s ease; overflow: hidden;
}
.contact-item:hover .c-icon { color: var(--accent); border-color: var(--accent); background: var(--accent-wash); }
.c-icon img,
.c-icon svg { width: 14px; height: 14px; max-width: 14px; max-height: 14px; object-fit: contain; display: block; }
.c-text { min-width: 0; display: flex; flex-direction: column; line-height: 1.35; }
.c-label { font-size: .66rem; color: var(--ink-3); letter-spacing: .12em; }
.c-value {
    font-size: .78rem; color: var(--ink-2); font-family: var(--font-mono);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.contact-item:hover .c-value { color: var(--accent); }

.side-foot {
    margin-top: auto; padding-top: 1.4rem;
    font-size: .68rem; color: var(--ink-3); line-height: 1.9;
    letter-spacing: .04em;
}
.side-foot a:hover { color: var(--accent); }

/* ===================== 推广广告位（侧栏） ===================== */
/* ===================== 推广广告位 ===================== */
/* 同一份 HTML 渲染两次：桌面显示侧栏那份，移动端显示列表后那份 */
.promo { margin-bottom: 1.1rem; }
.promo-mobile { display: none; }
.promo-head {
    display: flex; align-items: center; justify-content: space-between; gap: .5rem;
    margin-bottom: .55rem;
}
.promo-title {
    display: inline-flex; align-items: center; gap: .34rem;
    font-size: .68rem; font-weight: 500; color: var(--ink-2);
    letter-spacing: .18em; text-indent: .02em;
}
.promo-title svg { flex-shrink: 0; opacity: .75; }
.promo-more {
    font-size: .64rem; color: var(--ink-3); letter-spacing: .1em;
    border-bottom: 1px solid transparent; transition: color .2s ease, border-color .2s ease;
}
.promo-more:hover { color: var(--accent); border-bottom-color: var(--accent-wash); }

.promo-slots {
    display: grid; grid-template-columns: 1fr 1fr; gap: .34rem;
    grid-auto-flow: row dense;
}
.promo-slot {
    position: relative;
    display: flex; align-items: center; justify-content: center;
    min-height: 36px; padding: .3rem .4rem;
    border: 1px dashed var(--line); border-radius: 2px;
    background: transparent; color: var(--ink-3);
    font-size: .68rem; letter-spacing: .1em; text-align: center;
    overflow: hidden;
    transition: border-color .22s ease, color .22s ease, background .22s ease;
}
.promo-slot:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-wash); }
.promo-slot-text { display: block; line-height: 1.4; }
/* 有图的广告占满整行，纯文字的按两列排 */
.promo-slot.promo-filled {
    padding: .42rem .5rem;
    border-style: solid; border-color: var(--line-soft);
    background: var(--paper-2);
    color: var(--ink-2); letter-spacing: .02em;
    min-height: 44px;
}
.promo-slot.has-media,
.promo-slot.ad-figure { grid-column: 1 / -1; min-height: 0; }
.promo-slot.promo-filled:hover { border-color: var(--accent); background: var(--paper-3); color: var(--ink); }
/* 图片位空位：整行虚线框 */
.promo-slot-figure { grid-column: 1 / -1; min-height: 46px; }
/* 申请投放：整行高亮条 */
.promo-slot.promo-slot-apply { grid-column: 1 / -1; }
/* 高亮广告：主题色淡底 */
.promo-slot.ad-accent { border-color: transparent; background: var(--accent-wash); }
.promo-slot.ad-accent .ad-title { color: var(--accent); }
.promo-slot.ad-accent:hover { background: var(--accent-soft); }
/* 申请投放：高亮底色，模拟效果图中的红色块 */
.promo-slot-apply {
    border: 1px solid transparent;
    background: var(--accent-wash); color: var(--accent);
    font-family: var(--font-kai); letter-spacing: .14em;
}.promo-slot-apply:hover { background: var(--accent-soft); color: var(--accent); border-color: var(--accent-soft); }

.ad-media { display: block; width: 100%; line-height: 0; }
.ad-media img {
    display: block; width: 100%; height: auto;
    max-height: 74px; object-fit: contain;
}
.ad-body { display: flex; flex-direction: column; gap: .1rem; min-width: 0; width: 100%; }
.ad-title {
    font-size: .74rem; font-weight: 600; color: var(--ink);
    letter-spacing: .04em;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ad-text {
    font-size: .64rem; color: var(--ink-3); line-height: 1.45;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.foot-lines { margin-top: .2rem; }

/* 侧栏目录（分类） */
.catalog { margin-top: 1.5rem; }
.catalog-list { list-style: none; }
.cat-item {
    display: flex; align-items: baseline; gap: .5rem;
    padding: .38rem 0 .38rem .1rem; cursor: pointer;
    border: none; background: none; width: 100%; text-align: left;
    font-family: var(--font-serif); color: var(--ink-2);
    transition: color .2s ease, padding-left .2s ease;
    position: relative;
}
.cat-item::before {
    content: '○'; font-size: .5rem; color: var(--line);
    transition: color .2s ease; line-height: 1;
}
.cat-item .cat-name { font-size: .84rem; letter-spacing: .16em; transition: inherit; }
.cat-item .cat-dots { flex: 1; border-bottom: 1px dotted var(--line); opacity: .85; transform: translateY(-3px); }
.cat-item .cat-count { font-family: var(--font-mono); font-size: .76rem; color: var(--ink-3); }
.cat-item:hover { color: var(--accent); }
.cat-item:hover::before { color: var(--accent); }
.cat-item.active { color: var(--accent); padding-left: .25rem; }
.cat-item.active::before { content: '●'; color: var(--accent); }
.cat-item.active .cat-count { color: var(--accent); }

/* ===================== 主区 ===================== */
.main {
    --pad-x: 2.2rem;
    min-width: 0;
    min-height: 100vh; min-height: 100svh;
    display: flex; flex-direction: column;
    padding: 1.4rem var(--pad-x) 0;
}
/* 纵向 flex 下禁止子项被压缩，避免内容被挤扁 */
.main > * { flex-shrink: 0; }

/* 顶栏：不设底色与下边框，避免出现整条色带 */
.topbar {
    display: flex; align-items: center; justify-content: space-between; gap: 1.1rem;
    padding: .2rem 0 1.1rem; margin-bottom: 1.15rem;
}

/* 搜索：中式印框 */
.search { position: relative; flex: 0 1 400px; min-width: 0; }
.search svg {
    position: absolute; left: .9rem; top: 50%; transform: translateY(-50%);
    color: var(--ink-3); pointer-events: none; transition: color .2s ease;
}
.search input {
    width: 100%; height: 42px;
    padding: 0 2.4rem 0 2.55rem;
    border: 1px solid var(--line); border-radius: 2px;
    background: var(--paper-2); color: var(--ink);
    font-family: var(--font-serif); font-size: .9rem; letter-spacing: .04em;
    outline: none; -webkit-appearance: none; appearance: none;
    transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.search input::placeholder { color: var(--ink-3); letter-spacing: .1em; }
.search input:hover { border-color: var(--ink-3); }
.search input:focus {
    border-color: var(--accent); background: var(--paper);
    box-shadow: 0 0 0 3px var(--accent-wash);
}
.search:focus-within svg { color: var(--accent); }
/* 输入框内右侧「清空」 */
.search .clear-btn {
    position: absolute; right: .5rem; top: 50%; transform: translateY(-50%);
    width: 26px; height: 26px; border: none; border-radius: 50%;
    background: transparent; color: var(--ink-3);
    display: none; place-items: center; cursor: pointer;
    transition: all .18s ease;
}
.search .clear-btn:hover { background: var(--accent-wash); color: var(--accent); }
.search.has-value .clear-btn { display: grid; }

.toolbar-right { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }

.filters { display: flex; align-items: center; gap: .2rem; flex-wrap: wrap; }
.f-tab {
    position: relative; border: none; background: transparent; cursor: pointer;
    font-family: var(--font-serif); font-size: .84rem; color: var(--ink-3);
    padding: .3rem .62rem .45rem; letter-spacing: .12em;
    transition: color .2s ease;
}
.f-tab::after {
    content: ''; position: absolute; left: .55rem; right: .55rem; bottom: .08rem;
    height: 1.5px; border-radius: 2px;
    background: var(--accent); opacity: 0; transform: scaleX(.35);
    transform-origin: center; transition: all .25s ease;
}
.f-tab:hover { color: var(--ink-2); }
.f-tab.active { color: var(--ink); font-weight: 600; }
.f-tab.active::after { opacity: .9; transform: scaleX(1); }

/* 主题切换 */
.theme-btn {
    position: relative; width: 34px; height: 34px; flex-shrink: 0;
    border: 1px solid var(--line); border-radius: 50%;
    background: transparent; color: var(--ink-2);
    display: grid; place-items: center; overflow: hidden; cursor: pointer;
    transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.theme-btn:hover { color: var(--accent); border-color: var(--accent); background: var(--accent-wash); }
.theme-btn .ic { position: absolute; transition: transform .38s cubic-bezier(.4,0,.2,1), opacity .28s ease; }
.theme-btn .ic-sun { opacity: 1; transform: rotate(0) scale(1); }
.theme-btn .ic-moon { opacity: 0; transform: rotate(-90deg) scale(.5); }
html[data-theme="dark"] .theme-btn .ic-sun { opacity: 0; transform: rotate(90deg) scale(.5); }
html[data-theme="dark"] .theme-btn .ic-moon { opacity: 1; transform: rotate(0) scale(1); }

/* 告示 */
.announce {
    display: flex; align-items: flex-start; gap: .75rem;
    border-left: 2px solid var(--accent);
    padding: .15rem 0 .15rem .85rem;
    margin-bottom: 1.5rem;
    font-size: .84rem; color: var(--ink-2); line-height: 1.8;
}
.announce .a-label {
    flex-shrink: 0; font-family: var(--font-kai); font-size: .78rem;
    color: var(--accent); letter-spacing: .18em; padding-top: .08rem;
}

/* ===================== 域名卡 ===================== */
.grid {
    display: grid; gap: 1.05rem;
    grid-template-columns: repeat(auto-fit, minmax(288px, 1fr));
}

.domain-card {
    position: relative; display: flex; flex-direction: column;
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 1.1rem 1.2rem 1.05rem;
    opacity: 0; transform: translateY(10px);
    animation: inkIn .6s cubic-bezier(.22,.61,.36,1) forwards;
    transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease, background .28s ease;
    overflow: hidden;
}
/* 卡片左侧信笺竖线 */
.domain-card::before {
    content: ''; position: absolute; top: .85rem; bottom: .85rem; left: .42rem;
    width: 1px; background: var(--accent); opacity: .13;
    pointer-events: none;
}
[data-theme="dark"] .domain-card::before { opacity: .2; }

/* 卡角淡墨 */
.domain-card::after {
    content: ''; position: absolute; top: -46px; right: -46px;
    width: 108px; height: 108px; border-radius: 50%;
    background: radial-gradient(circle, rgba(30,27,23,.055), transparent 68%);
    pointer-events: none; transition: opacity .3s ease;
}
[data-theme="dark"] .domain-card::after { background: radial-gradient(circle, rgba(255,255,255,.05), transparent 68%); }
@keyframes inkIn { to { opacity: 1; transform: translateY(0); } }
.domain-card:hover {
    transform: translateY(-3px);
    border-color: var(--ink-3);
    box-shadow: 0 10px 26px rgba(30,27,23,.09);
}
[data-theme="dark"] .domain-card:hover { box-shadow: 0 10px 26px rgba(0,0,0,.5); }

.domain-card.sold-card { background: transparent; border-color: var(--line-soft); }
.domain-card.sold-card .domain-name { color: var(--ink-3); }
.domain-card.sold-card:hover { transform: translateY(-1px); box-shadow: none; border-color: var(--line); }
.domain-card.self-use { border-left-width: 2px; border-left-color: var(--ink-3); }

.card-head {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: .6rem; margin-bottom: .3rem;
}
.domain-name {
    font-family: var(--font-serif);
    font-size: 1.18rem; font-weight: 700; letter-spacing: .02em;
    line-height: 1.3; word-break: break-all;
    transition: color .2s ease;
}
.domain-card:hover .domain-name { color: var(--accent); }

.status {
    flex-shrink: 0; display: inline-flex; align-items: center; gap: .3rem;
    font-size: .7rem; letter-spacing: .12em; color: var(--ink-3);
    padding-top: .25rem;
}
.status::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: currentColor; }
.status.sale { color: var(--green); }
.status.self { color: var(--accent); }

/* 已售印章 */
.stamp {
    flex-shrink: 0;
    font-family: var(--font-kai); font-size: .74rem; letter-spacing: .1em;
    color: var(--accent); border: 1.5px solid var(--accent);
    border-radius: 2px; padding: .1rem .26rem;
    transform: rotate(-8deg); opacity: .55;
    line-height: 1.25;
}

.desc {
    font-size: .8rem; color: var(--ink-2); line-height: 1.72;
    margin: .1rem 0 .55rem; flex: 1;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.meta {
    display: flex; flex-wrap: wrap; align-items: center; gap: .18rem .45rem;
    font-size: .72rem; color: var(--ink-3);
    padding: .5rem 0; border-top: 1px dashed var(--line-soft); border-bottom: 1px dashed var(--line-soft);
    margin-bottom: .55rem;
}
.meta b {
    font-family: var(--font-mono); font-weight: 500; color: var(--ink-2);
    font-size: .71rem; letter-spacing: -.01em;
}
.meta .sep { color: var(--line); }
.meta .cd { color: var(--ink-2); }
.meta .cd.urgent { color: var(--accent); }
.meta .cd.critical { color: var(--accent); font-weight: 600; }

.tags { display: flex; flex-wrap: wrap; gap: .35rem; margin-bottom: .8rem; }
.tag {
    font-size: .68rem; color: var(--ink-3); letter-spacing: .04em;
    border: 1px solid var(--line-soft); border-radius: 1px;
    padding: .06rem .42rem; display: inline-flex; align-items: center; gap: .22rem;
}
.tag svg { opacity: .7; }

.card-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: .5rem; margin-top: auto; }
.price {
    font-family: var(--font-serif); font-size: 1.42rem; font-weight: 700;
    color: var(--accent); letter-spacing: -.01em; line-height: 1.1;
}
.price .cur { font-size: .8rem; font-weight: 500; margin-right: 1px; opacity: .85; }
.price .unit { font-size: .68rem; font-weight: 400; color: var(--ink-3); margin-left: 2px; letter-spacing: .06em; }
.price.sold-price { color: var(--ink-3); text-decoration: line-through; text-decoration-thickness: 1px; }
.renew { font-size: .7rem; color: var(--ink-3); letter-spacing: .04em; white-space: nowrap; }

.no-result {
    display: none;
    grid-column: 1 / -1; text-align: center; padding: 4rem 1rem;
    color: var(--ink-3); font-size: .88rem; letter-spacing: .1em;
}
.no-result svg { margin: 0 auto .8rem; opacity: .45; }

/* ===================== 友人 / 页脚 ===================== */
.friends { margin-top: 2.6rem; }
.friend-list {
    display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem .1rem;
    font-size: .82rem; color: var(--ink-2);
}
.friend-list a { padding: .1rem .1rem; transition: color .2s ease; }
.friend-list a:hover { color: var(--accent); }
.friend-list .sep { color: var(--line); padding: 0 .42rem; }

/* 底部山水：左右出血到主区边缘，短页面时沉到最底部，且不再向下溢出 */
.ink-mountain {
    margin: auto calc(-1 * var(--pad-x)) 0;
    padding-top: 2rem;
    pointer-events: none; overflow: hidden; line-height: 0;
    flex-shrink: 0;
}
.ink-mountain svg {
    display: block; width: 100%; height: clamp(80px, 11vw, 150px);
    vertical-align: bottom;
}
.m-far { color: var(--ink); opacity: .05; }
.m-mid { color: var(--ink); opacity: .085; }
.m-near { color: var(--ink); opacity: .13; }
[data-theme="dark"] .m-far { opacity: .06; }
[data-theme="dark"] .m-mid { opacity: .09; }
[data-theme="dark"] .m-near { opacity: .12; }

/* ===================== Toast ===================== */
.toast {
    position: fixed; left: 50%; bottom: 30px; z-index: 999;
    transform: translateX(-50%) translateY(10px); opacity: 0; pointer-events: none;
    background: var(--ink); color: var(--paper-2);
    font-size: .82rem; letter-spacing: .06em;
    padding: .55rem 1.15rem; border-radius: 2px;
    box-shadow: 0 12px 30px rgba(30,27,23,.28);
    transition: all .3s cubic-bezier(.22,.61,.36,1);
    max-width: calc(100vw - 32px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* 分类统一由侧栏目录承担，顶栏不再重复 */
.filters { display: none !important; }
@media (max-width: 1080px) {
    .catalog { display: none; }
}
@media (max-width: 560px) {
    .catalog { display: block; margin-top: 0; }
    .catalog .side-label { display: none; }
    .catalog-list { display: flex; flex-wrap: wrap; gap: .2rem .3rem; }
    .catalog-list li { flex: 1 1 auto; }
    .cat-item {
        width: auto; padding: .22rem .5rem;
        border: 1px solid var(--line-soft); border-radius: 2px;
        gap: .3rem; justify-content: center;
    }
    .cat-item::before { display: none; }
    .cat-item .cat-name { font-size: .76rem; letter-spacing: .08em; }
    .cat-item .cat-dots { display: none; }
    .cat-item .cat-count { font-size: .7rem; }
    .cat-item.active { padding-left: .5rem; border-color: var(--accent); background: var(--accent-wash); }
    .cat-item.active::before { display: none; }
}

/* ===================== 响应式 ===================== */
@media (max-width: 1080px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar {
        position: static; height: auto; overflow: visible;
        border-right: none; border-bottom: 1px solid var(--line);
        padding: 1.15rem 1.25rem 1rem;
        display: block;
    }
    .brand { justify-content: flex-start; }
    .seal { width: 44px; height: 44px; font-size: .85rem; }
    .brand-text h1 { font-size: 1.16rem; }
    .rule { margin: .95rem 0 .85rem; }

    .contacts { margin-top: 1rem; }
    .contacts .side-label { margin-bottom: .45rem; }
    .contact-list {
        display: flex; flex-wrap: wrap; gap: .4rem;
        overflow: visible; padding-bottom: 0;
    }
    .contact-item {
        border: 1px solid var(--line); border-radius: 2px;
        padding: .34rem .6rem;
        flex: 0 1 auto; min-width: 0; max-width: 100%;
        gap: .4rem;
        box-sizing: border-box;
    }
    /* 移动端每个都是独立方框，最后一个也要有完整下边框 */
    .contact-list .contact-item,
    .contact-list .contact-item:last-child {
        border: 1px solid var(--line); border-bottom: 1px solid var(--line);
    }
    .c-icon { width: 20px; height: 20px; }
    .c-icon img, .c-icon svg { width: 12px; height: 12px; max-width: 12px; max-height: 12px; }
    .c-label { display: none; }
    .c-text { min-width: 0; flex: 0 1 auto; overflow: hidden; }
    .c-value {
        font-size: .74rem; max-width: 100%;
        display: block; overflow: hidden; text-overflow: ellipsis;
    }
    .side-foot { display: block; margin-top: .9rem; padding-top: 0; }
    .side-foot .foot-lines { display: none; }

    /* 移动端：侧栏不再放推广，改到域名列表之后、友情链接之前 */
    .sidebar .promo { display: none; }
    .promo-mobile { display: block; margin: 2rem 0 0; }
    .promo-mobile .promo { margin: 0 0 1.8rem; padding: 1.1rem 1rem 1.2rem;
        border: 1px solid var(--line); border-radius: 2px; background: var(--paper-2); }
    .promo-mobile .promo-head { margin-bottom: .7rem; }
    .promo-mobile .promo-title { font-size: .72rem; }
    .promo-slots { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    /* 移动端图片空位保留 1 个即可，避免区块被撑太高 */
    .promo-mobile .promo-slot-figure ~ .promo-slot-figure { display: none; }
    /* 移动端有图广告限高，防止单张图把区块撑高 */
    .promo-mobile .promo-slot.has-media .ad-media img { max-height: 52px; }
    .promo-mobile .promo-slot.ad-figure { min-height: 0; }

    .main { --pad-x: 1.25rem; padding: 1rem var(--pad-x) 0; max-width: none; min-height: 0; }
    .topbar { padding: .6rem 0; gap: .7rem; }
}

@media (max-width: 560px) {
    .topbar { flex-wrap: nowrap; gap: .5rem; align-items: center; }
    .search { flex: 1 1 auto; min-width: 0; }
    .toolbar-right { flex: 0 0 auto; }
    .search input { height: 40px; font-size: .86rem; padding-left: 2.3rem; }
    .search svg { left: .75rem; }
    .grid { grid-template-columns: 1fr; gap: .85rem; }
    .domain-card { padding: 1rem 1.05rem .95rem; }
    .domain-name { font-size: 1.08rem; }
    .price { font-size: 1.3rem; }
    .main { --pad-x: 1.05rem; padding: .9rem var(--pad-x) 0; }
    .ink-mountain { padding-top: 1.4rem; }
    .ink-mountain svg { height: clamp(64px, 16vw, 90px); }
    .announce { font-size: .8rem; }
}

@media (prefers-reduced-motion: reduce) {
    .domain-card { animation: none; opacity: 1; transform: none; }
    * { transition-duration: .01ms !important; }
}