@charset "utf-8";
/* ============================================================
   520 表白墙主题 (love520) v2.0 —— 全新表白墙视觉
   粉紫渐变 / 玻璃拟态导航 / 全屏 Hero 打字机 / 瀑布流卡片墙
   点赞互动 / 分享菜单 / 漂浮爱心
   ============================================================ */

:root {
    --pink: #ff4d8d;
    --pink-deep: #ff2d78;
    --pink-soft: #ff87c3;
    --purple: #c86bff;
    --purple-soft: #e0b3ff;
    --text: #5a3348;
    --text-mid: #8d5d76;
    --text-light: #b389a0;
    --card-bg: rgba(255, 255, 255, .93);
    --border: #ffdcea;
    --shadow-sm: 0 4px 16px rgba(214, 80, 140, .09);
    --shadow-md: 0 10px 30px rgba(214, 80, 140, .14);
    --shadow-lg: 0 18px 48px rgba(214, 80, 140, .2);
    --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text);
    background: linear-gradient(135deg, #ffe3ef 0%, #fdeaf7 40%, #f2e4ff 72%, #ffe6f2 100%);
    background-attachment: fixed;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* 柔光氛围层 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 168, 205, .38), transparent 42%),
        radial-gradient(circle at 88% 78%, rgba(200, 155, 255, .32), transparent 44%);
}

a { color: var(--pink-deep); text-decoration: none; transition: color .2s; }
a:hover { color: var(--purple); }
img { max-width: 100%; height: auto; border: 0; }
ul, li { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; }

.container { width: 1180px; max-width: 94%; margin: 0 auto; position: relative; z-index: 2; }

/* ============================================================
   顶部导航（玻璃拟态吸顶）
   ============================================================ */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .78);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid rgba(255, 190, 220, .55);
    box-shadow: 0 2px 20px rgba(214, 80, 140, .07);
}

.site-nav .container {
    display: flex;
    align-items: center;
    gap: 18px;
    height: 66px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: .5px;
    flex: none;
}
.nav-logo:hover { color: var(--pink-deep); }
.nav-logo .heart {
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff; font-size: 16px;
    box-shadow: 0 4px 14px rgba(255, 77, 141, .38);
    animation: heartBeat 1.8s ease-in-out infinite;
}
@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    14% { transform: scale(1.16); }
    28% { transform: scale(1); }
    42% { transform: scale(1.12); }
    56% { transform: scale(1); }
}

.nav-menu { display: flex; align-items: center; gap: 4px; flex: 1; min-width: 0; }
.nav-menu a {
    padding: 8px 15px;
    border-radius: 999px;
    color: var(--text-mid);
    font-size: 14.5px;
    font-weight: 600;
    white-space: nowrap;
    transition: all .22s;
}
.nav-menu a:hover { background: rgba(255, 135, 195, .16); color: var(--pink-deep); }
.nav-menu a.on {
    background: linear-gradient(135deg, var(--pink), var(--pink-soft));
    color: #fff;
    box-shadow: 0 4px 14px rgba(255, 77, 141, .3);
}

.nav-search { display: flex; align-items: center; flex: none; }
.nav-search input {
    width: 168px;
    height: 38px;
    padding: 0 14px;
    border: 1.5px solid var(--border);
    border-right: none;
    border-radius: 999px 0 0 999px;
    background: #fffafc;
    font-size: 13.5px;
    color: var(--text);
    outline: none;
    transition: border-color .2s, width .25s;
    font-family: inherit;
}
.nav-search input:focus { border-color: var(--pink-soft); width: 200px; }
.nav-search button {
    height: 38px;
    padding: 0 17px;
    border: none;
    border-radius: 0 999px 999px 0;
    background: linear-gradient(135deg, var(--pink), var(--pink-deep));
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: opacity .2s;
    font-family: inherit;
}
.nav-search button:hover { opacity: .88; }

.nav-cta {
    flex: none;
    padding: 10px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple));
    color: #fff !important;
    font-weight: 700;
    font-size: 14.5px;
    white-space: nowrap;
    box-shadow: 0 6px 20px rgba(255, 45, 120, .34);
    transition: transform .22s, box-shadow .22s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(255, 45, 120, .44); }

/* ============================================================
   Hero 首屏
   ============================================================ */
.hero {
    position: relative;
    z-index: 2;
    padding: 74px 0 62px;
    text-align: center;
    overflow: hidden;
}

.hero-tag {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .72);
    border: 1px solid var(--border);
    color: var(--pink-deep);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.hero h1 {
    font-size: 52px;
    line-height: 1.24;
    letter-spacing: 2px;
    background: linear-gradient(120deg, #ff2d78 0%, #ff6fae 42%, #b96bff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    font-weight: 800;
}

.hero .hero-sub {
    font-size: 16px;
    color: var(--text-mid);
    margin: 14px 0 0;
    letter-spacing: .5px;
}

/* 打字机轮播 */
.typer-box {
    margin: 30px auto 0;
    max-width: 720px;
    min-height: 62px;
    padding: 17px 26px;
    background: rgba(255, 255, 255, .82);
    border: 1px solid var(--border);
    border-radius: 999px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}
.typer-box .quote { font-size: 19px; color: var(--pink-soft); flex: none; }
.typer-text {
    font-size: 17px;
    color: var(--text);
    font-weight: 600;
    letter-spacing: .6px;
}
.typer-text::after {
    content: "|";
    margin-left: 3px;
    color: var(--pink-deep);
    animation: caret .8s step-end infinite;
    font-weight: 400;
}
@keyframes caret { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* Hero 数据条 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin: 34px auto 0;
    flex-wrap: wrap;
}
.stat-card {
    min-width: 158px;
    padding: 18px 26px;
    background: rgba(255, 255, 255, .86);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
    transition: transform .25s, box-shadow .25s;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-card .num {
    display: block;
    font-size: 30px;
    font-weight: 800;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.stat-card .label { font-size: 13px; color: var(--text-light); letter-spacing: 1px; }

/* Hero 按钮组 */
.hero-btns { margin-top: 34px; display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 42px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: transform .24s, box-shadow .24s;
}
.btn-hero.primary {
    background: linear-gradient(135deg, var(--pink-deep) 0%, var(--pink) 50%, var(--purple) 100%);
    color: #fff;
    box-shadow: 0 10px 30px rgba(255, 45, 120, .36);
}
.btn-hero.primary:hover { transform: translateY(-3px); box-shadow: 0 16px 38px rgba(255, 45, 120, .46); color: #fff; }
.btn-hero.ghost {
    background: rgba(255, 255, 255, .82);
    color: var(--pink-deep);
    border: 1.5px solid var(--pink-soft);
    box-shadow: var(--shadow-sm);
}
.btn-hero.ghost:hover { transform: translateY(-3px); background: #fff; box-shadow: var(--shadow-md); }

/* ============================================================
   区块标题
   ============================================================ */
.sec-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 44px 0 22px;
    flex-wrap: wrap;
    gap: 12px;
}
.sec-head h2 {
    font-size: 25px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: 1px;
}
.sec-head h2::before {
    content: "";
    width: 5px;
    height: 24px;
    border-radius: 3px;
    background: linear-gradient(180deg, var(--pink), var(--purple));
}
.sec-head .tabs { display: flex; gap: 8px; }
.sec-head .tabs a {
    padding: 7px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .74);
    border: 1px solid var(--border);
    color: var(--text-mid);
    font-size: 13.5px;
    font-weight: 600;
}
.sec-head .tabs a:hover { border-color: var(--pink-soft); color: var(--pink-deep); }
.sec-head .tabs a.on {
    background: linear-gradient(135deg, var(--pink), var(--pink-soft));
    border-color: transparent;
    color: #fff;
}

/* ============================================================
   表白卡片墙
   ============================================================ */
.wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(286px, 1fr));
    gap: 20px;
    position: relative;
    z-index: 2;
}

.wall-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, .9);
    border-radius: var(--radius);
    padding: 22px 20px 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    transition: transform .3s, box-shadow .3s;
}
.wall-card.in { opacity: 1; transform: translateY(0); }
.wall-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

/* 顶部彩条 */
.wall-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--pink), var(--purple));
}
.wall-card.c1::before { background: linear-gradient(90deg, #ff5e9c, #ff9ec7); }
.wall-card.c2::before { background: linear-gradient(90deg, #c86bff, #e6b3ff); }
.wall-card.c3::before { background: linear-gradient(90deg, #ff8a5c, #ffc09e); }
.wall-card.c4::before { background: linear-gradient(90deg, #5ec2ff, #a8dfff); }
.wall-card.c5::before { background: linear-gradient(90deg, #4ecdb4, #a3e8dc); }
.wall-card.c6::before { background: linear-gradient(90deg, #ffc94d, #ffe3a3); }
.wall-card.c7::before { background: linear-gradient(90deg, #ff6b8a, #ffb3c1); }

/* 卡片装饰爱心 */
.wall-card .deco {
    position: absolute;
    right: 14px; top: 14px;
    font-size: 44px;
    opacity: .07;
    pointer-events: none;
    transition: transform .4s, opacity .4s;
}
.wall-card:hover .deco { transform: scale(1.2) rotate(10deg); opacity: .14; }

.card-cate {
    display: inline-block;
    align-self: flex-start;
    padding: 4px 13px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--pink), var(--pink-soft));
}
.wall-card.c2 .card-cate { background: linear-gradient(135deg, #c86bff, #dda3ff); }
.wall-card.c3 .card-cate { background: linear-gradient(135deg, #ff8a5c, #ffb28e); }
.wall-card.c4 .card-cate { background: linear-gradient(135deg, #5ec2ff, #92d6ff); }
.wall-card.c5 .card-cate { background: linear-gradient(135deg, #4ecdb4, #85dfd0); }
.wall-card.c6 .card-cate { background: linear-gradient(135deg, #f5b21f, #ffd470); color: #6b4a00; }
.wall-card.c7 .card-cate { background: linear-gradient(135deg, #ff6b8a, #ffa3b5); }

.card-title {
    font-size: 16.5px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 9px;
}
.card-title a { color: var(--text); }
.card-title a:hover { color: var(--pink-deep); }

.card-body {
    flex: 1;
    font-size: 13.8px;
    line-height: 1.78;
    color: var(--text-mid);
    word-break: break-word;
    margin-bottom: 14px;
}

.card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
    font-size: 12.5px;
    color: var(--text-light);
}
.card-foot .signer { display: flex; align-items: center; gap: 6px; min-width: 0; }
.card-foot .avatar {
    width: 24px; height: 24px;
    flex: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-soft), var(--purple-soft));
    color: #fff;
    font-size: 12px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700;
}
.card-foot .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 88px; }
.card-foot .metas { display: flex; align-items: center; gap: 10px; flex: none; }

/* 点赞按钮 */
.like-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 13px;
    border-radius: 999px;
    border: 1.5px solid var(--border);
    background: #fffafc;
    color: var(--pink-deep);
    font-size: 12.5px;
    font-weight: 700;
    cursor: pointer;
    transition: all .22s;
    font-family: inherit;
    position: relative;
}
.like-btn:hover { border-color: var(--pink-soft); background: #fff0f6; transform: scale(1.05); }
.like-btn.liked {
    background: linear-gradient(135deg, var(--pink), var(--pink-deep));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 14px rgba(255, 77, 141, .32);
}
.like-btn.pop { animation: likePop .45s ease; }
@keyframes likePop {
    0% { transform: scale(1); }
    40% { transform: scale(1.32); }
    70% { transform: scale(.94); }
    100% { transform: scale(1); }
}
/* 点赞飞出的爱心 */
.fly-heart {
    position: absolute;
    left: 50%; top: 0;
    font-size: 16px;
    pointer-events: none;
    animation: flyUp .9s ease-out forwards;
}
@keyframes flyUp {
    0% { opacity: 1; transform: translate(-50%, 0) scale(.8); }
    100% { opacity: 0; transform: translate(-50%, -52px) scale(1.5); }
}

/* 空状态 */
.empty-box {
    text-align: center;
    padding: 64px 20px;
    background: var(--card-bg);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    color: var(--text-light);
}
.empty-box .emo { font-size: 46px; display: block; margin-bottom: 14px; }

/* ============================================================
   分页
   ============================================================ */
.pager {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 38px 0 50px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}
.pager a, .pager span {
    min-width: 40px;
    height: 40px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(255, 255, 255, .84);
    border: 1px solid var(--border);
    color: var(--text-mid);
    font-size: 14px;
    font-weight: 600;
    transition: all .2s;
}
.pager a:hover { border-color: var(--pink-soft); color: var(--pink-deep); transform: translateY(-2px); }
.pager .now {
    background: linear-gradient(135deg, var(--pink), var(--purple));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 6px 18px rgba(255, 77, 141, .3);
}

/* ============================================================
   详情页
   ============================================================ */
.detail {
    width: 860px;
    max-width: 94%;
    margin: 34px auto 0;
    position: relative;
    z-index: 2;
}
.detail-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, .9);
    border-radius: 24px;
    padding: 38px 42px 32px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}
.detail-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--pink), var(--purple));
}
.detail-card .deco-big {
    position: absolute;
    right: -10px; top: -14px;
    font-size: 130px;
    opacity: .05;
    pointer-events: none;
}
.detail-head { text-align: center; margin-bottom: 26px; }
.detail-head h1 {
    font-size: 28px;
    line-height: 1.45;
    color: var(--text);
    margin-bottom: 14px;
    letter-spacing: .5px;
}
.detail-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px 18px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-light);
}
.detail-meta .chip {
    padding: 4px 13px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--pink), var(--pink-soft));
    color: #fff;
    font-weight: 700;
    font-size: 12px;
}
.detail-body {
    font-size: 16px;
    line-height: 2;
    color: var(--text);
    padding: 26px 30px;
    background: linear-gradient(135deg, #fff6fa, #fdf2ff);
    border: 1px solid var(--border);
    border-radius: 18px;
    white-space: pre-wrap;
    word-break: break-word;
    position: relative;
}
.detail-body::before {
    content: "❝";
    position: absolute;
    left: 12px; top: 2px;
    font-size: 34px;
    color: var(--pink-soft);
    opacity: .5;
}
.detail-sign {
    text-align: right;
    margin-top: 16px;
    font-size: 14px;
    color: var(--pink-deep);
    font-weight: 700;
}

/* 详情操作区 */
.detail-acts {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    margin-top: 30px;
    flex-wrap: wrap;
}
.act-like {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 14px 40px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--pink-deep), var(--pink));
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 10px 28px rgba(255, 45, 120, .34);
    transition: transform .24s, box-shadow .24s;
    font-family: inherit;
    position: relative;
}
.act-like:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(255, 45, 120, .44); }
.act-like.liked { background: linear-gradient(135deg, #d63384, #b02a6f); }
.act-like .n { font-variant-numeric: tabular-nums; }
.act-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .86);
    border: 1.5px solid var(--pink-soft);
    color: var(--pink-deep);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all .24s;
    font-family: inherit;
}
.act-btn:hover { transform: translateY(-3px); background: #fff; box-shadow: var(--shadow-md); }

.detail-nav {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    margin-top: 24px;
    font-size: 13.5px;
    flex-wrap: wrap;
}
.detail-nav a { color: var(--text-mid); }
.detail-nav a:hover { color: var(--pink-deep); }

/* ============================================================
   评论（送上祝福）
   ============================================================ */
.cmt-wrap {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, .9);
    border-radius: 24px;
    padding: 32px 38px;
    margin: 24px 0 50px;
    box-shadow: var(--shadow-sm);
}
.cmt-title {
    font-size: 20px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 22px;
}
.cmt-list { margin-bottom: 26px; }
.cmt-item {
    display: flex;
    gap: 13px;
    padding: 16px 0;
    border-bottom: 1px dashed var(--border);
}
.cmt-item:last-child { border-bottom: none; }
.cmt-item .ava {
    width: 40px; height: 40px;
    flex: none;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-soft), var(--purple-soft));
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}
.cmt-item .body { flex: 1; min-width: 0; }
.cmt-item .who { font-size: 14px; font-weight: 700; color: var(--pink-deep); margin-bottom: 3px; }
.cmt-item .when { font-size: 12px; color: var(--text-light); font-weight: 400; margin-left: 8px; }
.cmt-item .txt { font-size: 14px; line-height: 1.8; color: var(--text); word-break: break-word; }

.cmt-form .row { margin-bottom: 14px; }
.cmt-form label { display: block; font-size: 13.5px; font-weight: 700; color: var(--text-mid); margin-bottom: 7px; }
.cmt-form input[type=text], .cmt-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1.5px solid var(--border);
    border-radius: 14px;
    background: #fffafc;
    font-size: 14px;
    color: var(--text);
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    font-family: inherit;
}
.cmt-form input[type=text]:focus, .cmt-form textarea:focus {
    border-color: var(--pink-soft);
    box-shadow: 0 0 0 4px rgba(255, 135, 195, .15);
}
.cmt-form textarea { resize: vertical; line-height: 1.75; }
.cmt-form .row2 { display: flex; gap: 14px; flex-wrap: wrap; }
.cmt-form .row2 > div { flex: 1; min-width: 180px; }
.cmt-form .vcode { display: flex; align-items: center; gap: 10px; }
.cmt-form .vcode input { flex: 1; }
.cmt-form .vcode img { height: 44px; border-radius: 10px; border: 1px solid var(--border); cursor: pointer; }
.btn-cmt {
    padding: 13px 40px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(255, 77, 141, .3);
    transition: transform .22s, box-shadow .22s;
    font-family: inherit;
}
.btn-cmt:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255, 77, 141, .4); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ============================================================
   右侧悬浮工具条
   ============================================================ */
.side-bar {
    position: fixed;
    right: 18px;
    bottom: 90px;
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.sb-item {
    width: 48px; height: 48px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    color: var(--pink-deep);
    font-size: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all .22s;
    font-family: inherit;
    line-height: 1;
    text-align: center;
}
.sb-item span { font-size: 10px; margin-top: 2px; font-weight: 600; }
.sb-item:hover {
    background: linear-gradient(135deg, var(--pink), var(--purple));
    color: #fff;
    transform: translateX(-4px) scale(1.05);
    box-shadow: var(--shadow-md);
}
.sb-item.hide { opacity: 0; visibility: hidden; transform: translateX(20px); }
.sb-item.playing { background: linear-gradient(135deg, var(--pink), var(--purple)); color: #fff; }
.sb-item.playing .ic { animation: spin 3s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 分享面板 */
.share-pop {
    position: fixed;
    right: 78px;
    bottom: 150px;
    z-index: 95;
    width: 186px;
    background: rgba(255, 255, 255, .96);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow-lg);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(12px);
    transition: all .25s;
}
.share-pop.open { opacity: 1; visibility: visible; transform: translateX(0); }
.share-pop .t { font-size: 13px; font-weight: 700; color: var(--text-mid); padding: 4px 8px 10px; }
.share-pop a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 11px;
    border-radius: 12px;
    color: var(--text);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
}
.share-pop a:hover { background: rgba(255, 135, 195, .14); color: var(--pink-deep); }

/* Toast 提示 */
.toast {
    position: fixed;
    left: 50%;
    top: 88px;
    transform: translate(-50%, -20px);
    z-index: 999;
    padding: 13px 28px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple));
    color: #fff;
    font-size: 14.5px;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all .3s;
    white-space: nowrap;
}
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ============================================================
   漂浮爱心
   ============================================================ */
.hearts { position: fixed; inset: 0; pointer-events: none; z-index: 1; overflow: hidden; }
.hearts i {
    position: absolute;
    bottom: -40px;
    font-size: 20px;
    font-style: normal;
    opacity: 0;
    animation: floatUp linear infinite;
}
@keyframes floatUp {
    0% { transform: translateY(0) scale(.7) rotate(-10deg); opacity: 0; }
    12% { opacity: .85; }
    88% { opacity: .7; }
    100% { transform: translateY(-108vh) scale(1.1) rotate(12deg); opacity: 0; }
}

/* ============================================================
   页脚
   ============================================================ */
.site-foot {
    margin-top: 30px;
    padding: 38px 0 30px;
    background: rgba(255, 255, 255, .62);
    border-top: 1px solid var(--border);
    text-align: center;
    position: relative;
    z-index: 2;
}
.foot-links { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.foot-links a {
    padding: 7px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .8);
    border: 1px solid var(--border);
    color: var(--text-mid);
    font-size: 13.5px;
    font-weight: 600;
}
.foot-links a:hover { border-color: var(--pink-soft); color: var(--pink-deep); }
.foot-txt { font-size: 13px; color: var(--text-light); line-height: 2; }
.foot-txt .slogan { color: var(--pink-deep); font-weight: 700; font-size: 14px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
    .hero h1 { font-size: 40px; }
    .detail-card { padding: 30px 26px 26px; }
    .cmt-wrap { padding: 26px 22px; }
}

@media (max-width: 820px) {
    .site-nav .container { height: auto; flex-wrap: wrap; padding: 10px 0; gap: 10px; }
    .nav-menu { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; }
    .nav-menu a { padding: 7px 12px; font-size: 14px; }
    .nav-search { order: 2; flex: 1; }
    .nav-search input { width: 100%; }
    .nav-cta { order: 4; width: 100%; text-align: center; justify-content: center; }
    .hero { padding: 46px 0 40px; }
    .hero h1 { font-size: 31px; letter-spacing: 1px; }
    .hero .hero-sub { font-size: 14.5px; }
    .typer-box { padding: 14px 18px; border-radius: 20px; }
    .typer-text { font-size: 15px; }
    .stat-card { min-width: 108px; padding: 14px 16px; }
    .stat-card .num { font-size: 23px; }
    .btn-hero { padding: 13px 30px; font-size: 15px; }
    .wall { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 15px; }
    .detail-head h1 { font-size: 22px; }
    .detail-body { font-size: 15px; padding: 20px 18px; }
    .side-bar { right: 10px; bottom: 74px; }
    .sb-item { width: 42px; height: 42px; font-size: 16px; }
    .share-pop { right: 60px; bottom: 130px; }
}

@media (max-width: 520px) {
    .wall { grid-template-columns: 1fr; }
    .hero h1 { font-size: 26px; }
    .hero-stats { gap: 10px; }
    .stat-card { min-width: calc(33.333% - 7px); padding: 12px 8px; }
    .stat-card .num { font-size: 19px; }
    .stat-card .label { font-size: 11px; letter-spacing: 0; }
    .btn-hero { width: 100%; justify-content: center; }
    .detail-card { padding: 24px 18px 22px; border-radius: 18px; }
    .cmt-wrap { padding: 22px 16px; border-radius: 18px; }
    .act-like, .act-btn { width: 100%; justify-content: center; }
}

/* ============================================================
   置顶表白角标
   ============================================================ */
.wall-card.is-top {
    border-color: rgba(255, 135, 195, .7);
    box-shadow: 0 8px 26px rgba(255, 77, 141, .18);
}
.wall-card .top-flag {
    position: absolute;
    right: 0; top: 12px;
    padding: 4px 12px 4px 14px;
    border-radius: 999px 0 0 999px;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple));
    color: #fff;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .5px;
    box-shadow: 0 4px 12px rgba(255, 45, 120, .3);
    z-index: 3;
}