/* ================================================
   超级无敌:乱涂彩社区 - 设计系统 v2
   风格：涂鸦派对 (Doodle Party)
   ================================================ */

/* ===== 设计令牌 ===== */
:root {
    --color-purple: #6C5CE7;
    --color-cyan: #00CEC9;
    --color-pink: #FD79A8;
    --color-yellow: #FDCB6E;
    --color-success: #00B894;
    --color-danger: #FF7675;
    --color-orange: #FF8C42;

    --color-bg: #F8F4FF;
    --color-bg-alt: #F0EAFF;
    --color-card: #FFFFFF;
    --color-card-hover: #FAF7FF;

    --color-text: #2D1B4E;
    --color-text-light: #6B5B95;
    --color-text-lighter: #A29BCB;
    --color-text-white: #FFFFFF;

    --color-border: #E8E0F5;
    --color-border-hover: #D4C5F5;

    --gradient-primary: linear-gradient(135deg, #6C5CE7 0%, #A855F7 100%);
    --gradient-cyan: linear-gradient(135deg, #00CEC9 0%, #0984E3 100%);
    --gradient-pink: linear-gradient(135deg, #FD79A8 0%, #E84393 100%);
    --gradient-warm: linear-gradient(135deg, #FDCB6E 0%, #FF7675 100%);

    --shadow-sm: 0 2px 8px rgba(108, 92, 231, 0.06);
    --shadow-md: 0 4px 16px rgba(108, 92, 231, 0.1);
    --shadow-lg: 0 8px 32px rgba(108, 92, 231, 0.15);
    --shadow-xl: 0 16px 48px rgba(108, 92, 231, 0.2);
    --shadow-glow: 0 0 24px rgba(108, 92, 231, 0.3);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 64px;

    --font-heading: 'ZCOOL KuaiLe', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.15s var(--ease-smooth);
    --transition-normal: 0.3s var(--ease-spring);
    --transition-slow: 0.5s var(--ease-spring);

    --header-height: 64px;
    --max-width: 960px;
}

[data-theme="dark"] {
    --color-bg: #1A1530;
    --color-bg-alt: #221C3D;
    --color-card: #2A2348;
    --color-card-hover: #332A55;
    --color-text: #F0EAFF;
    --color-text-light: #A29BCB;
    --color-text-lighter: #6B5B95;
    --color-border: #3D3260;
    --color-border-hover: #4D4080;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a { color: var(--color-purple); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea { font-family: inherit; font-size: inherit; outline: none; }
ul { list-style: none; }

/* ===== 涂鸦装饰背景 ===== */
.doodle-bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.doodle-splash { position: absolute; width: 400px; height: 400px; animation: float-slow 20s ease-in-out infinite; }
.splash-1 { top: -100px; left: -100px; }
.splash-2 { bottom: -100px; right: -50px; animation-delay: -7s; }
.splash-3 { top: 40%; right: -150px; animation-delay: -14s; }

@keyframes float-slow {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -20px) rotate(5deg); }
    66% { transform: translate(-20px, 30px) rotate(-3deg); }
}

/* ===== 顶部导航栏 ===== */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-normal);
}
[data-theme="dark"] .header { background: rgba(42, 35, 72, 0.85); }

.header-inner {
    max-width: 1200px; height: var(--header-height); margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex; align-items: center; justify-content: space-between; gap: var(--space-md);
}

/* Logo */
.header-left { display: flex; align-items: center; gap: var(--space-lg); flex: 1; min-width: 0; }
.logo { display: flex; align-items: center; gap: var(--space-sm); cursor: pointer; flex-shrink: 0; transition: transform var(--transition-fast); }
.logo:hover { transform: scale(1.03); }
.logo:active { transform: scale(0.98); }
.logo-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; }
.logo-icon svg { width: 100%; height: 100%; }
.logo-text { font-family: var(--font-heading); font-size: 18px; font-weight: 400; color: var(--color-text); white-space: nowrap; }
.logo-accent { background: var(--gradient-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* 左侧榜单按钮 */
.nav-left { display: flex; align-items: center; gap: var(--space-xs); }
.nav-btn {
    display: flex; align-items: center; gap: 4px;
    padding: 8px 14px; border-radius: var(--radius-full);
    font-size: 13px; font-weight: 500; color: var(--color-text-light);
    transition: all var(--transition-fast); white-space: nowrap;
}
.nav-btn:hover { background: var(--color-bg-alt); color: var(--color-purple); transform: translateY(-1px); }
.nav-btn:active { transform: translateY(0); }
.nav-btn-sub { color: var(--color-text-lighter); font-size: 12px; }

/* ===== 右侧导航 (fcreate风格：图标上+文字下垂直排列) ===== */
.header-right { display: flex; align-items: center; gap: clamp(8px, 1.6vw, 18px); flex-shrink: 0; }

.nav-tab {
    position: relative; display: inline-flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 6px 10px; color: var(--color-text-light);
    transition: all var(--transition-fast);
}
.nav-tab svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; transition: transform var(--transition-fast); }
.nav-tab span { font-size: 12px; line-height: 1.1; margin-top: 2px; white-space: nowrap; }

.nav-tab::after {
    content: ''; position: absolute; bottom: -4px; left: 12px; right: 12px;
    height: 2px; border-radius: 1px;
    background: var(--gradient-primary);
    opacity: 0; transform: scaleX(0); transition: all var(--transition-fast);
}

.nav-tab:hover, .nav-tab.active {
    color: var(--color-purple); transform: translateY(-2px);
}
.nav-tab:hover svg, .nav-tab.active svg { transform: translateY(-1px); }
.nav-tab:hover::after, .nav-tab.active::after { opacity: 1; transform: scaleX(1); }

/* 消息红点 (B站风格：圆角方形) */
.badge {
    position: absolute; top: 0; right: 4px;
    min-width: 16px; height: 16px; padding: 0 4px;
    border-radius: 8px; background: var(--color-danger); color: white;
    font-size: 10px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; line-height: 1;
    box-shadow: 0 2px 6px rgba(255, 118, 117, 0.4);
}

/* ===== 头像区域 (B站风格 hover 大卡片) ===== */
.avatar-wrap {
    position: relative; display: flex; justify-content: center;
    width: 48px; cursor: pointer;
}
.avatar-button {
    width: 36px; height: 36px; border-radius: var(--radius-full);
    overflow: hidden; display: flex; align-items: center; justify-content: center;
    background: var(--color-bg-alt); border: 2px solid transparent;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}
.avatar-button img, .avatar-button svg { width: 100%; height: 100%; object-fit: cover; }
.avatar-wrap:hover .avatar-button, .avatar-wrap:focus-within .avatar-button {
    transform: translateY(10px) scale(1.36);
    box-shadow: 0 18px 38px rgba(108, 92, 231, 0.28);
    border-color: var(--color-purple);
}

/* B站风格用户卡片 */
.profile-card {
    position: absolute; top: 52px; right: 0;
    width: 280px; padding: 52px 20px 20px;
    background: var(--color-card); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0; pointer-events: none; transform: translateY(-8px) scale(0.95);
    transition: all var(--transition-normal); z-index: 200;
}
.avatar-wrap:hover .profile-card, .avatar-wrap:focus-within .profile-card {
    opacity: 1; pointer-events: auto; transform: translateY(0) scale(1);
}

/* 卡片顶部大头像（浮起效果） */
.profile-card .pc-avatar {
    position: absolute; top: -32px; left: 50%; transform: translateX(-50%);
    width: 64px; height: 64px; border-radius: var(--radius-full);
    border: 4px solid var(--color-card);
    background: var(--gradient-primary);
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 26px; font-weight: 700; overflow: hidden;
    box-shadow: var(--shadow-md);
}
.profile-card .pc-avatar img { width: 100%; height: 100%; object-fit: cover; }

.profile-card .pc-nickname {
    display: block; text-align: center; font-size: 16px; font-weight: 700;
    color: var(--color-text); margin-bottom: 4px;
}
.profile-card .pc-uid {
    display: block; text-align: center; font-size: 12px;
    color: var(--color-text-lighter); margin-bottom: 14px;
}

/* 经验条 */
.profile-card .pc-exp-bar {
    width: 100%; height: 8px; border-radius: var(--radius-full);
    background: var(--color-bg-alt); overflow: hidden; margin-bottom: 6px;
}
.profile-card .pc-exp-fill { height: 100%; background: var(--gradient-primary); border-radius: var(--radius-full); transition: width 0.6s var(--ease-spring); }
.profile-card .pc-exp-text { display: flex; justify-content: space-between; font-size: 11px; color: var(--color-text-lighter); margin-bottom: 14px; }

/* 统计数据 */
.profile-card .pc-stats {
    display: flex; justify-content: space-around;
    padding: 12px 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border);
    margin-bottom: 14px;
}
.profile-card .pc-stat { text-align: center; }
.profile-card .pc-stat-value { display: block; font-size: 18px; font-weight: 700; color: var(--color-purple); }
.profile-card .pc-stat-label { display: block; font-size: 11px; color: var(--color-text-lighter); }

/* 菜单按钮 */
.profile-card .pc-menu { display: flex; flex-direction: column; gap: 6px; }
.profile-card .pc-menu-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px; border-radius: var(--radius-md);
    font-size: 14px; color: var(--color-text-light);
    transition: all var(--transition-fast);
}
.profile-card .pc-menu-btn:hover { background: var(--color-bg-alt); color: var(--color-purple); }
.profile-card .pc-menu-btn.danger:hover { background: rgba(255, 118, 117, 0.1); color: var(--color-danger); }
.profile-card .pc-login-btn {
    width: 100%; min-height: 38px; border-radius: var(--radius-md);
    background: var(--gradient-primary); color: white; font-weight: 600; font-size: 15px;
    transition: all var(--transition-fast); box-shadow: var(--shadow-md);
}
.profile-card .pc-login-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ===== 移动端菜单 ===== */
.mobile-menu-btn { display: none; padding: 8px; color: var(--color-text); }
.mobile-menu { padding: var(--space-md); display: flex; flex-direction: column; gap: var(--space-xs); border-top: 1px solid var(--color-border); background: var(--color-card); }
.mobile-nav-btn { padding: 12px var(--space-md); border-radius: var(--radius-md); font-size: 15px; color: var(--color-text); text-align: left; transition: background var(--transition-fast); }
.mobile-nav-btn:hover { background: var(--color-bg-alt); }
.mobile-menu-divider { border: none; border-top: 1px solid var(--color-border); margin: var(--space-sm) 0; }

/* ===== 主内容区 ===== */
.main-content { position: relative; z-index: 1; max-width: var(--max-width); margin: 0 auto; padding: var(--space-lg) var(--space-md); min-height: calc(100vh - var(--header-height) - 120px); }

.view { display: none; animation: fade-in var(--transition-normal); }
.view.active { display: block; }

@keyframes fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 页面顶部横幅 */
.compact-page-banner { margin-bottom: var(--space-lg); }
.compact-page-banner .eyebrow { font-size: 12px; color: var(--color-text-lighter); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.compact-page-banner h1 { font-family: var(--font-heading); font-size: 28px; color: var(--color-text); margin-bottom: 4px; }
.compact-page-banner p { font-size: 14px; color: var(--color-text-light); }

/* ===== 社区工具栏 ===== */
.community-toolbar { display: flex; align-items: center; gap: var(--space-md); margin-bottom: var(--space-lg); }

.btn-sign-in {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 20px; border-radius: var(--radius-full);
    background: var(--gradient-warm); color: white;
    font-size: 14px; font-weight: 600; box-shadow: var(--shadow-md);
    transition: all var(--transition-fast); flex-shrink: 0;
}
.btn-sign-in:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-sign-in:active { transform: translateY(0); }
.btn-sign-in.signed { background: var(--color-success); opacity: 0.7; cursor: default; }
.btn-sign-in.signed:hover { transform: none; }

/* 页面内搜索筛选 */
.search-inline {
    flex: 1; display: flex; align-items: center; gap: var(--space-sm);
    padding: 8px 12px; background: var(--color-card);
    border: 1.5px solid var(--color-border); border-radius: var(--radius-full);
    transition: all var(--transition-fast); min-width: 0;
}
.search-inline:focus-within { border-color: var(--color-purple); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1); }
.search-inline input { flex: 1; border: none; background: none; color: var(--color-text); font-size: 14px; }
.search-inline input::placeholder { color: var(--color-text-lighter); }

.search-type-inline {
    padding: 4px 12px; border-radius: var(--radius-full);
    font-size: 12px; color: var(--color-text-light);
    border: 1px solid var(--color-border); transition: all var(--transition-fast);
    white-space: nowrap;
}
.search-type-inline.active { background: var(--color-purple); color: white; border-color: var(--color-purple); }

/* ===== 帖子列表 ===== */
.post-list { display: flex; flex-direction: column; gap: var(--space-md); }

.post-card {
    background: var(--color-card); border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg); padding: var(--space-lg);
    transition: all var(--transition-normal); cursor: pointer; position: relative; overflow: hidden;
}
.post-card::before {
    content: ''; position: absolute; left: 0; top: 0; width: 4px; height: 100%;
    background: var(--gradient-primary); transform: scaleY(0); transform-origin: top;
    transition: transform var(--transition-normal);
}
.post-card:hover { border-color: var(--color-border-hover); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.post-card:hover::before { transform: scaleY(1); }

.post-card-header { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-md); }
.post-author-avatar {
    width: 40px; height: 40px; border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 600; font-size: 16px; flex-shrink: 0;
    overflow: hidden;
}
.post-author-avatar img { width: 100%; height: 100%; object-fit: cover; }

.post-author-info { display: flex; flex-direction: column; gap: 2px; }
.post-author-name { font-size: 14px; font-weight: 600; color: var(--color-text); }
.post-author-meta { font-size: 12px; color: var(--color-text-lighter); display: flex; align-items: center; gap: 6px; }
.post-level-badge { display: inline-block; padding: 1px 6px; border-radius: var(--radius-sm); background: var(--color-bg-alt); color: var(--color-purple); font-size: 10px; font-weight: 600; }

.post-title { font-size: 17px; font-weight: 700; color: var(--color-text); margin-bottom: var(--space-sm); line-height: 1.4; }
.post-content-preview {
    font-size: 14px; color: var(--color-text-light); line-height: 1.6;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
    margin-bottom: var(--space-md);
}

.post-images-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: var(--space-sm); margin-bottom: var(--space-md); }
.post-image-thumb { width: 100%; aspect-ratio: 1; border-radius: var(--radius-md); object-fit: cover; background: var(--color-bg-alt); }

.post-video-embed { margin-bottom: var(--space-md); border-radius: var(--radius-md); overflow: hidden; position: relative; padding-bottom: 56.25%; height: 0; }
.post-video-embed iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }

.post-card-footer { display: flex; align-items: center; gap: var(--space-lg); padding-top: var(--space-md); border-top: 1px solid var(--color-border); }

.post-stat {
    display: flex; align-items: center; gap: 6px;
    font-size: 13px; color: var(--color-text-lighter);
    transition: color var(--transition-fast); cursor: pointer;
}
.post-stat:hover { color: var(--color-purple); }
.post-stat.liked { color: var(--color-pink); }
.post-stat.liked svg { fill: var(--color-pink); animation: heart-pop 0.4s var(--ease-spring); }
.post-stat.favorited { color: var(--color-yellow); }
.post-stat.favorited svg { fill: var(--color-yellow); animation: star-flash 0.5s var(--ease-spring); }

@keyframes heart-pop {
    0% { transform: scale(1); }
    40% { transform: scale(1.4); }
    100% { transform: scale(1); }
}
@keyframes star-flash {
    0% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.3) rotate(15deg); filter: drop-shadow(0 0 8px var(--color-yellow)); }
    100% { transform: scale(1) rotate(0deg); }
}

/* 点赞粒子飘散 */
.heart-particle { position: fixed; pointer-events: none; z-index: 999; font-size: 14px; color: var(--color-pink); animation: particle-float 1s ease-out forwards; }
@keyframes particle-float {
    0% { opacity: 1; transform: translate(0, 0) scale(0.5); }
    100% { opacity: 0; transform: translate(var(--px, 0), -60px) scale(1.2); }
}

/* 数字弹跳 */
.stat-bounce { animation: stat-bounce 0.4s var(--ease-spring); }
@keyframes stat-bounce {
    0% { transform: scale(1); }
    50% { transform: scale(1.5); color: var(--color-pink); }
    100% { transform: scale(1); }
}

/* ===== 空状态 ===== */
.empty-state { text-align: center; padding: var(--space-2xl) var(--space-md); color: var(--color-text-lighter); }
.empty-state p { margin-top: var(--space-md); font-size: 14px; }

/* ===== 悬浮发帖按钮 ===== */
.fab-post {
    position: fixed; bottom: 32px; right: 32px;
    display: flex; align-items: center; gap: 6px;
    padding: 14px 24px; border-radius: var(--radius-full);
    background: var(--gradient-primary); color: white;
    font-size: 15px; font-weight: 600;
    box-shadow: var(--shadow-lg), var(--shadow-glow); z-index: 90;
    transition: all var(--transition-normal);
}
.fab-post:hover { transform: translateY(-3px) scale(1.05); box-shadow: var(--shadow-xl), var(--shadow-glow); }
.fab-post:active { transform: translateY(0) scale(1); }

/* ===== 弹窗系统 ===== */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(45, 27, 78, 0.5);
    backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    z-index: 200; display: flex; align-items: center; justify-content: center;
    padding: var(--space-md); animation: overlay-in var(--transition-fast);
}
[data-theme="dark"] .modal-overlay { background: rgba(0, 0, 0, 0.6); }
@keyframes overlay-in { from { opacity: 0; } to { opacity: 1; } }

.modal {
    background: var(--color-card); border-radius: var(--radius-xl);
    padding: var(--space-xl); max-width: 520px; width: 100%;
    max-height: 85vh; overflow-y: auto; position: relative;
    box-shadow: var(--shadow-xl); animation: modal-in var(--transition-normal);
}
@keyframes modal-in {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    position: absolute; top: var(--space-md); right: var(--space-md);
    width: 32px; height: 32px; border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-lighter); transition: all var(--transition-fast); z-index: 10;
}
.modal-close:hover { background: var(--color-bg-alt); color: var(--color-text); transform: rotate(90deg); }
.profile-edit-option:hover { border-color: var(--color-purple) !important; background: var(--color-bg-alt) !important; transform: translateY(-1px); }
.profile-edit-option { transition: all 0.2s ease; }
.modal h2, .modal h3 { font-family: var(--font-heading); margin-bottom: var(--space-md); }

/* 确认弹窗 */
.modal-confirm { max-width: 380px; text-align: center; }
.modal-confirm p { font-size: 14px; color: var(--color-text-light); margin-bottom: var(--space-lg); line-height: 1.7; }
.confirm-actions { display: flex; gap: var(--space-md); justify-content: center; }

/* ===== 按钮 ===== */
.btn-primary {
    padding: 12px 32px; border-radius: var(--radius-md);
    background: var(--gradient-primary); color: white;
    font-size: 15px; font-weight: 600; transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-ghost {
    padding: 12px 24px; border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border); color: var(--color-text-light);
    font-size: 15px; font-weight: 500; transition: all var(--transition-fast);
}
.btn-ghost:hover { border-color: var(--color-purple); color: var(--color-purple); background: var(--color-bg-alt); }

.btn-danger {
    padding: 12px 24px; border-radius: var(--radius-md);
    background: var(--color-danger); color: white;
    font-size: 15px; font-weight: 600; transition: all var(--transition-fast);
}
.btn-danger:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(255, 118, 117, 0.4); }

/* ===== 注册/登录弹窗（精美设计） ===== */
.modal-auth { max-width: 420px; }

.auth-header { text-align: center; margin-bottom: var(--space-lg); }
.auth-logo { display: flex; justify-content: center; margin-bottom: var(--space-sm); }
.auth-header h2 { font-family: var(--font-heading); font-size: 22px; color: var(--color-text); margin-bottom: 4px; }
.auth-subtitle { font-size: 13px; color: var(--color-text-lighter); }

.auth-tabs {
    display: flex; gap: var(--space-sm); margin-bottom: var(--space-lg);
    border-bottom: 2px solid var(--color-border);
}
.auth-tab {
    padding: 10px 24px; font-size: 16px; font-weight: 600;
    color: var(--color-text-lighter);
    border-bottom: 3px solid transparent; margin-bottom: -2px;
    transition: all var(--transition-fast);
}
.auth-tab.active { color: var(--color-purple); border-bottom-color: var(--color-purple); }

.auth-form { display: flex; flex-direction: column; gap: var(--space-md); }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 13px; font-weight: 600; color: var(--color-text-light); }
.form-group input {
    padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
    background: var(--color-bg); color: var(--color-text); font-size: 15px;
    transition: all var(--transition-fast);
}
.form-group input:focus { border-color: var(--color-purple); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1); }

.auth-hint { font-size: 13px; color: var(--color-danger); min-height: 18px; }
.auth-note { font-size: 12px; color: var(--color-text-lighter); text-align: center; line-height: 1.8; margin-top: var(--space-sm); }
.btn-auth { width: 100%; margin-top: var(--space-sm); }

/* 验证码区域 */
#auth-captcha-group { display: none; }
#auth-captcha-group.visible { display: flex; }
.captcha-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}
.captcha-question {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 84px;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    background: var(--gradient-warm);
    color: white;
    font-family: var(--font-heading);
    font-size: 16px;
    letter-spacing: 1px;
    user-select: none;
    box-shadow: 0 2px 8px rgba(253, 121, 168, 0.25);
}
#captcha-question:empty { display: none; }
.captcha-row .editor-tool-btn {
    padding: 8px;
    border-radius: var(--radius-md);
}

/* ===== 签到成功弹窗 ===== */
.modal-signin-success { max-width: 360px; text-align: center; }
.signin-checkmark { margin-bottom: var(--space-md); animation: check-bounce 0.6s var(--ease-spring); }
@keyframes check-bounce { 0% { transform: scale(0); } 50% { transform: scale(1.2); } 100% { transform: scale(1); } }
.check-circle { animation: circle-draw 0.8s var(--ease-smooth) forwards; stroke-dasharray: 157; stroke-dashoffset: 157; }
@keyframes circle-draw { to { stroke-dashoffset: 0; } }
.check-mark { animation: mark-draw 0.4s var(--ease-smooth) 0.4s forwards; stroke-dasharray: 36; stroke-dashoffset: 36; }
@keyframes mark-draw { to { stroke-dashoffset: 0; } }

.signin-rewards { display: flex; justify-content: center; gap: var(--space-xl); margin: var(--space-lg) 0; }
.reward-item { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.reward-label { font-size: 13px; color: var(--color-text-lighter); }
.reward-value { font-size: 24px; font-weight: 800; color: var(--color-purple); }

/* ===== 发帖页面 ===== */
.post-editor-page { display: flex; flex-direction: column; gap: var(--space-md); }
.post-title-input {
    padding: 14px 18px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
    font-size: 18px; font-weight: 600; background: var(--color-card); color: var(--color-text);
    transition: border-color var(--transition-fast);
}
.post-title-input:focus { border-color: var(--color-purple); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1); }

.post-editor-toolbar { display: flex; gap: var(--space-sm); }
.editor-tool-btn {
    display: flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: var(--radius-md);
    border: 1.5px solid var(--color-border); font-size: 13px; color: var(--color-text-light);
    transition: all var(--transition-fast);
}
.editor-tool-btn:hover { border-color: var(--color-purple); color: var(--color-purple); background: var(--color-bg-alt); }

.post-content-input {
    padding: 16px 18px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
    font-size: 14px; line-height: 1.8; background: var(--color-card); color: var(--color-text);
    resize: vertical; min-height: 240px; transition: border-color var(--transition-fast);
    font-family: var(--font-body);
}
.post-content-input:focus { border-color: var(--color-purple); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1); }

.post-images-preview { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.post-images-preview img { width: 80px; height: 80px; border-radius: var(--radius-sm); object-fit: cover; cursor: pointer; }

.post-video-input { padding: 12px 16px; border: 1.5px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-card); color: var(--color-text); font-size: 14px; }

.post-editor-footer { display: flex; align-items: center; justify-content: space-between; padding-top: var(--space-sm); }
.post-editor-footer-right { display: flex; align-items: center; gap: var(--space-md); }
.post-exp-hint { font-size: 12px; color: var(--color-text-lighter); }

/* ===== 帖子详情页面 ===== */
.post-detail-page { max-width: 720px; margin: 0 auto; }

.post-detail-back {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: var(--radius-full);
    font-size: 13px; color: var(--color-text-light); margin-bottom: var(--space-md);
    transition: all var(--transition-fast);
}
.post-detail-back:hover { background: var(--color-bg-alt); color: var(--color-purple); }

.post-detail-header { display: flex; align-items: center; gap: var(--space-sm); margin-bottom: var(--space-lg); padding-bottom: var(--space-md); border-bottom: 1px solid var(--color-border); }
.post-detail-title { font-size: 24px; font-weight: 700; margin-bottom: var(--space-md); line-height: 1.4; }
.post-detail-content { font-size: 15px; line-height: 1.9; color: var(--color-text); margin-bottom: var(--space-lg); white-space: pre-wrap; word-break: break-word; }
.post-detail-images { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--space-sm); margin-bottom: var(--space-lg); }
.post-detail-images img { width: 100%; border-radius: var(--radius-md); cursor: pointer; transition: transform var(--transition-fast); }
.post-detail-images img:hover { transform: scale(1.02); }

.post-detail-actions { display: flex; align-items: center; gap: var(--space-lg); padding: var(--space-md) 0; border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-lg); }

/* 评论区域 */
.comments-section { margin-top: var(--space-lg); }
.comments-title { font-size: 16px; font-weight: 600; margin-bottom: var(--space-md); }

.comment-item { display: flex; gap: var(--space-sm); padding: var(--space-md) 0; border-bottom: 1px solid var(--color-border); }
.comment-avatar {
    width: 36px; height: 36px; border-radius: var(--radius-full);
    background: var(--gradient-cyan);
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 600; font-size: 14px; flex-shrink: 0; overflow: hidden;
}
.comment-avatar img { width: 100%; height: 100%; object-fit: cover; }
.comment-body { flex: 1; min-width: 0; }
.comment-header { display: flex; align-items: center; gap: 6px; margin-bottom: 4px; }
.comment-author { font-size: 13px; font-weight: 600; color: var(--color-text); }
.comment-time { font-size: 12px; color: var(--color-text-lighter); }
.comment-text { font-size: 14px; line-height: 1.6; color: var(--color-text-light); }
.comment-actions { display: flex; gap: var(--space-md); margin-top: 6px; }
.comment-action { font-size: 12px; color: var(--color-text-lighter); transition: color var(--transition-fast); cursor: pointer; }
.comment-action:hover { color: var(--color-purple); }
.comment-action.liked { color: #e74c3c; }
.comment-action .cl-count { font-size: 12px; margin-left: 2px; }
.comment-reply-to { font-size: 11px; color: #999; margin-bottom: 2px; }

/* 举报按钮 */
.report-btn { cursor: pointer; transition: color 0.2s; }
.report-btn:hover { color: #e74c3c; }
.report-btn.reported { color: #e74c3c; }
.report-btn.reported::after { content: ' ✓'; font-size: 12px; }
.report-btn-small { cursor: pointer; font-size: 14px !important; }
.report-btn-small.reported { color: #e74c3c; opacity: 0.7; }

/* 帖子所有者按钮 */
.post-owner-actions { display: flex; gap: 8px; padding: var(--space-md) 0; flex-wrap: wrap; }
.post-owner-btn { background: none; border: 1px solid var(--color-border); border-radius: 8px; padding: 6px 14px; font-size: 13px; cursor: pointer; transition: all 0.2s; color: var(--color-text); }
.post-owner-btn:hover { border-color: var(--color-primary); color: var(--color-primary); background: rgba(108,92,231,0.05); }
.post-owner-btn.btn-danger-text:hover { border-color: #e74c3c; color: #e74c3c; background: rgba(231,76,60,0.05); }

.comment-input-area { display: flex; gap: var(--space-sm); margin-top: var(--space-lg); padding-top: var(--space-md); border-top: 1px solid var(--color-border); }
.comment-input-area input {
    flex: 1; padding: 10px 16px; border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full); background: var(--color-card); color: var(--color-text);
    font-size: 14px; transition: border-color var(--transition-fast);
}
.comment-input-area input:focus { border-color: var(--color-purple); box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1); }

/* ===== 排行榜页面 ===== */
.rank-page { max-width: 640px; margin: 0 auto; }
.rank-page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-lg); }
.rank-page-title { font-family: var(--font-heading); font-size: 28px; }
.rank-page-actions { display: flex; gap: var(--space-sm); }

.btn-rank-action {
    display: flex; align-items: center; gap: 4px;
    padding: 8px 16px; border-radius: var(--radius-full);
    border: 1.5px solid var(--color-border); font-size: 13px; color: var(--color-text-light);
    transition: all var(--transition-fast);
}
.btn-rank-action:hover { border-color: var(--color-purple); color: var(--color-purple); }

.rank-search-inline {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 6px 12px; border: 1.5px solid var(--color-border); border-radius: var(--radius-full);
    margin-bottom: var(--space-lg); transition: border-color var(--transition-fast);
}
.rank-search-inline:focus-within { border-color: var(--color-purple); }
.rank-search-inline input { flex: 1; border: none; background: none; color: var(--color-text); font-size: 14px; }
.rank-search-inline select { border: none; background: var(--color-bg-alt); color: var(--color-text-light); font-size: 12px; border-radius: var(--radius-full); padding: 4px 8px; }

.rank-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.rank-item {
    display: flex; align-items: center; gap: var(--space-md);
    padding: var(--space-md); border-radius: var(--radius-lg);
    background: var(--color-card); border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}
.rank-item:hover { border-color: var(--color-border-hover); box-shadow: var(--shadow-sm); transform: translateX(4px); }

.rank-number {
    width: 36px; height: 36px; border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading); font-size: 18px; font-weight: 700; flex-shrink: 0;
}
.rank-number.gold { background: linear-gradient(135deg, #FFD700, #FFA500); color: white; }
.rank-number.silver { background: linear-gradient(135deg, #C0C0C0, #A0A0A0); color: white; }
.rank-number.bronze { background: linear-gradient(135deg, #CD7F32, #A0522D); color: white; }
.rank-number.normal { background: var(--color-bg-alt); color: var(--color-text-light); }

.rank-avatar {
    width: 44px; height: 44px; border-radius: var(--radius-full);
    background: var(--gradient-primary); flex-shrink: 0; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    color: white; font-weight: 600; font-size: 18px;
}
.rank-avatar img { width: 100%; height: 100%; object-fit: cover; }

.rank-info { flex: 1; min-width: 0; }
.rank-name { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.rank-server-tag {
    display: inline-block; padding: 1px 8px; border-radius: var(--radius-sm);
    background: var(--color-bg-alt); color: var(--color-cyan);
    font-size: 11px; font-weight: 500;
}
.rank-signature { font-size: 12px; color: var(--color-text-lighter); margin-top: 2px; }
.rank-sponsor-amount { font-size: 13px; font-weight: 700; color: var(--color-orange); }

/* ===== 入榜方式弹窗 ===== */
.modal-rank-method { max-width: 520px; }
.rank-method-content { display: flex; flex-direction: column; gap: var(--space-md); }
.rank-method-item { padding: var(--space-md); border-radius: var(--radius-md); background: var(--color-bg-alt); border-left: 3px solid var(--color-purple); }
.rank-method-item h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--color-purple); }
.rank-method-item p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; white-space: pre-wrap; }

/* ===== 榜单空状态 + 入榜条件 ===== */
.rank-empty { text-align: center; padding: var(--space-xl) var(--space-md); }
.rank-empty-icon { font-size: 48px; margin-bottom: var(--space-sm); opacity: 0.5; }
.rank-empty-text { font-size: 15px; color: var(--color-text-light); }
.rank-conditions {
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}
.rank-conditions-title {
    font-family: var(--font-heading);
    font-size: 18px;
    margin-bottom: var(--space-md);
    color: var(--color-purple);
}
.rank-conditions-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}
.sponsor-link {
    font-size: 15px;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
    background: linear-gradient(135deg, #6C5CE7, #00CEC9, #FD79A8, #FDCB6E);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: sponsor-gradient 3s ease infinite;
    cursor: pointer;
    transition: transform var(--transition-fast);
}
.sponsor-link:hover { transform: scale(1.05); }
.rank-sponsor-cta {
    text-align: center;
    margin-bottom: var(--space-lg);
}
.rank-sponsor-cta .sponsor-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: 15px;
    font-weight: 700;
    background: linear-gradient(135deg, #6C5CE7, #00CEC9, #FD79A8, #FDCB6E);
    background-size: 300% 300%;
    -webkit-text-fill-color: white !important;
    color: white !important;
    box-shadow: 0 4px 14px rgba(108, 92, 231, 0.35);
    animation: sponsor-gradient 3s ease infinite;
}
.rank-sponsor-cta .sponsor-link:hover { transform: scale(1.05); box-shadow: 0 6px 18px rgba(108, 92, 231, 0.45); }
@keyframes sponsor-gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.rank-condition-item {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    background: var(--color-bg-alt);
    border-left: 3px solid var(--color-purple);
    margin-bottom: var(--space-sm);
}
.rank-condition-item h4 { font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--color-purple); }
.rank-condition-item p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; }
.rank-condition-slogan { border-left-color: var(--color-pink); background: linear-gradient(135deg, rgba(253,121,168,0.05), rgba(253,203,110,0.05)); }
.rank-condition-slogan h4 { color: var(--color-pink); }
.rank-method-slogan { border-left-color: var(--color-pink); background: linear-gradient(135deg, rgba(253,121,168,0.05), rgba(253,203,110,0.05)); }
.rank-method-slogan h4 { color: var(--color-pink); }
.btn-rank-apply {
    width: 100%;
    margin-top: var(--space-md);
    padding: 12px;
    background: var(--gradient-cool);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast);
}
.btn-rank-apply:hover { transform: scale(1.02); }

/* 二维码区域 */
.qr-codes { display: flex; gap: var(--space-md); justify-content: center; margin-top: var(--space-md); }
.qr-code-item { text-align: center; }
.qr-code-item img { width: 140px; height: 140px; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.qr-code-item span { display: block; font-size: 12px; color: var(--color-text-light); margin-top: 6px; }

/* ===== 开发说明弹窗 ===== */
.modal-dev-notes { max-width: 560px; display: flex; flex-direction: column; overflow: hidden; }
.modal-dev-notes > h2 { flex-shrink: 0; }
.dev-notes-content { display: flex; flex-direction: column; gap: var(--space-lg); max-height: calc(85vh - 100px); overflow-y: auto; padding-right: var(--space-sm); }
.dev-section h3 { font-size: 15px; color: var(--color-purple); margin-bottom: var(--space-sm); }
.dev-section p, .dev-section li { font-size: 13px; color: var(--color-text-light); line-height: 1.8; }
.dev-section ul { padding-left: var(--space-md); }
.dev-section li { list-style: disc; }

.sponsor-progress { margin-top: var(--space-sm); }
.sponsor-bar { width: 100%; height: 12px; border-radius: var(--radius-full); background: var(--color-bg-alt); overflow: hidden; margin-bottom: var(--space-sm); }
.sponsor-fill { height: 100%; background: var(--gradient-warm); border-radius: var(--radius-full); transition: width 0.6s var(--ease-spring); }

/* ===== 消息视图 ===== */
.messages-container { max-width: 640px; margin: 0 auto; }
.message-tabs { display: flex; gap: var(--space-xs); margin-bottom: var(--space-lg); overflow-x: auto; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
.msg-tab { padding: 8px 16px; border-radius: var(--radius-full); font-size: 13px; color: var(--color-text-light); white-space: nowrap; transition: all var(--transition-fast); }
.msg-tab:hover { background: var(--color-bg-alt); }
.msg-tab.active { background: var(--color-purple); color: white; }

.message-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.message-item { display: flex; gap: var(--space-sm); padding: var(--space-md); border-radius: var(--radius-lg); background: var(--color-card); border: 1px solid var(--color-border); transition: all var(--transition-fast); cursor: pointer; }
.message-item:hover { border-color: var(--color-border-hover); box-shadow: var(--shadow-sm); }
.message-item.unread { border-left: 3px solid var(--color-pink); }

.message-avatar { width: 36px; height: 36px; border-radius: var(--radius-full); background: var(--gradient-pink); flex-shrink: 0; display: flex; align-items: center; justify-content: center; color: white; font-size: 14px; font-weight: 600; overflow: hidden; }
.message-content { flex: 1; min-width: 0; }
.message-sender { font-size: 13px; font-weight: 600; }
.message-text { font-size: 13px; color: var(--color-text-light); margin-top: 2px; }
.message-time { font-size: 11px; color: var(--color-text-lighter); margin-top: 4px; }
.message-settings { text-align: center; margin-top: var(--space-lg); }
.message-settings a { font-size: 13px; color: var(--color-text-lighter); }

/* ===== 个人主页 ===== */
.profile-container { max-width: 640px; margin: 0 auto; }
.profile-header { text-align: center; padding: var(--space-xl) var(--space-md); background: var(--color-card); border-radius: var(--radius-xl); border: 1px solid var(--color-border); margin-bottom: var(--space-lg); }
.profile-avatar-large { width: 80px; height: 80px; border-radius: var(--radius-full); margin: 0 auto var(--space-md); background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: white; font-size: 32px; font-weight: 700; overflow: hidden; }
.profile-avatar-large img { width: 100%; height: 100%; object-fit: cover; }
.profile-nickname { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.profile-uid { font-size: 13px; color: var(--color-text-lighter); margin-bottom: var(--space-md); }
.profile-signature { font-size: 14px; color: var(--color-text-light); margin-bottom: var(--space-md); }
.profile-stats { display: flex; justify-content: center; gap: var(--space-xl); padding: var(--space-md) 0; border-top: 1px solid var(--color-border); margin-top: var(--space-md); }
.profile-stat { text-align: center; }
.profile-stat-value { font-size: 22px; font-weight: 700; color: var(--color-purple); }
.profile-stat-label { font-size: 12px; color: var(--color-text-lighter); }

.exp-bar-container { margin: var(--space-md) auto; max-width: 300px; }
.exp-bar-info { display: flex; justify-content: space-between; font-size: 12px; color: var(--color-text-lighter); margin-bottom: 6px; }
.exp-bar { width: 100%; height: 10px; border-radius: var(--radius-full); background: var(--color-bg-alt); overflow: hidden; }
.exp-bar-fill { height: 100%; background: var(--gradient-primary); border-radius: var(--radius-full); transition: width 0.6s var(--ease-spring); }

/* ===== 任务卡片 ===== */
.task-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--space-lg); }
.task-item { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--color-border); background: var(--color-card); transition: all 0.2s ease; }
.task-item.can-claim { border-color: var(--color-purple); box-shadow: 0 0 0 1px var(--color-purple); }
.task-item.claimed { opacity: 0.55; }
.task-info { flex: 1; min-width: 0; }
.task-name { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 2px; }
.task-desc { font-size: 12px; color: var(--color-text-lighter); margin-bottom: 8px; }
.task-progress-bar { width: 100%; height: 6px; border-radius: 3px; background: var(--color-bg-alt); overflow: hidden; }
.task-progress-fill { height: 100%; background: var(--gradient-primary); border-radius: 3px; transition: width 0.5s ease; }
.task-progress-text { font-size: 11px; color: var(--color-text-lighter); margin-top: 4px; }
.task-reward { display: flex; flex-direction: column; gap: 2px; align-items: flex-end; white-space: nowrap; }
.task-reward-caps { font-size: 13px; font-weight: 600; color: var(--color-yellow); }
.task-reward-exp { font-size: 11px; color: var(--color-text-lighter); }
.task-claim-btn { padding: 6px 16px; border-radius: 8px; background: var(--color-purple); color: white; border: none; font-size: 13px; cursor: pointer; white-space: nowrap; transition: all 0.2s ease; }
.task-claim-btn:hover { opacity: 0.85; transform: translateY(-1px); }
.task-claimed-label { font-size: 12px; color: var(--color-text-lighter); white-space: nowrap; }

.profile-tabs { display: flex; gap: var(--space-xs); margin-bottom: var(--space-md); }
.profile-tab { padding: 8px 18px; border-radius: var(--radius-full); font-size: 14px; color: var(--color-text-light); transition: all var(--transition-fast); }
.profile-tab:hover { background: var(--color-bg-alt); }
.profile-tab.active { background: var(--color-purple); color: white; }
.profile-edit-btn { display: inline-block; padding: 6px 16px; border-radius: var(--radius-full); border: 1.5px solid var(--color-border); font-size: 13px; color: var(--color-text-light); margin: 4px; transition: all var(--transition-fast); }
.profile-edit-btn:hover { border-color: var(--color-purple); color: var(--color-purple); }

/* ===== Toast ===== */
.toast-container { position: fixed; bottom: 100px; left: 50%; transform: translateX(-50%); z-index: 300; display: flex; flex-direction: column; gap: var(--space-sm); align-items: center; pointer-events: none; }
.toast { padding: 10px 24px; border-radius: var(--radius-full); background: var(--color-text); color: var(--color-bg); font-size: 14px; font-weight: 500; box-shadow: var(--shadow-lg); animation: toast-in var(--transition-normal), toast-out var(--transition-normal) 2s forwards; pointer-events: auto; }
.toast.success { background: var(--color-success); color: white; }
.toast.error { background: var(--color-danger); color: white; }
.toast.info { background: var(--color-purple); color: white; }
@keyframes toast-in { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(-10px); } }

/* ===== 页脚 ===== */
.footer { position: relative; z-index: 1; text-align: center; padding: var(--space-xl) var(--space-md); color: var(--color-text-lighter); font-size: 12px; line-height: 1.8; border-top: 1px solid var(--color-border); margin-top: var(--space-xl); }
.footer-sub { margin-top: 4px; opacity: 0.7; }

/* ===== 回到顶部按钮 ===== */
.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(108,92,231,0.35);
    z-index: 1000;
    transition: all 0.3s ease;
}
.scroll-top-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(108,92,231,0.45);
    background: var(--color-secondary);
}
@media (max-width: 768px) {
    .scroll-top-btn { bottom: 20px; right: 20px; width: 38px; height: 38px; }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    :root { --header-height: 56px; }
    .header-inner { padding: 0 var(--space-sm); gap: var(--space-sm); }
    .logo-text { display: none; }
    .nav-left { display: none; }
    .nav-tab span { font-size: 10px; }
    .nav-tab { padding: 4px 6px; gap: 2px; }
    .mobile-menu-btn { display: flex; }
    .main-content { padding: var(--space-md) var(--space-sm); }
    .community-toolbar { flex-direction: column; align-items: stretch; }
    .btn-sign-in { justify-content: center; }
    .search-inline { flex-wrap: wrap; }
    .fab-post { bottom: 20px; right: 20px; padding: 12px 20px; }
    .fab-post span { display: none; }
    .modal { padding: var(--space-lg); max-height: 90vh; border-radius: var(--radius-lg); }
    .post-card { padding: var(--space-md); }
    .post-title { font-size: 16px; }
    .post-card-footer { gap: var(--space-md); }
    .post-images-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
    .signin-rewards { gap: var(--space-lg); }
    .profile-stats { gap: var(--space-md); }
    .profile-card { right: -8px; width: 260px; }
    .qr-codes { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
    .post-card-footer { flex-wrap: wrap; gap: var(--space-sm); }
    .post-detail-images { grid-template-columns: 1fr; }
    .post-editor-footer { flex-direction: column; gap: var(--space-md); align-items: stretch; }
    .post-editor-footer-right { justify-content: space-between; }
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg-alt); }
::-webkit-scrollbar-thumb { background: var(--color-border-hover); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-purple); }
::selection { background: var(--color-purple); color: white; }

/* ===== 可访问性 ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid var(--color-purple); outline-offset: 2px; }

/* ===== 关注按钮（帖子卡片和详情页通用） ===== */
.follow-btn-sm {
    flex-shrink: 0;
    padding: 4px 12px;
    border: 1.5px solid var(--color-purple);
    border-radius: var(--radius-full);
    background: var(--color-purple);
    color: white;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}
.follow-btn-sm.following {
    background: transparent;
    color: var(--color-text-light);
    border-color: var(--color-border);
}
.follow-btn-sm:hover { transform: scale(1.05); }

/* ===== 新帖徽章 ===== */
.new-badge {
    display: inline-block;
    background: var(--color-pink);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    border-radius: var(--radius-full);
    vertical-align: middle;
    margin-left: 4px;
}

/* ===== 排序切换按钮 ===== */
.sort-switcher {
    display: flex;
    gap: 0;
    background: var(--color-bg-alt);
    border-radius: var(--radius-full);
    padding: 3px;
}
.sort-btn {
    padding: 6px 14px;
    border: none;
    background: transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-light);
    transition: all var(--transition-fast);
}
.sort-btn.active {
    background: var(--color-card);
    color: var(--color-purple);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    font-weight: 600;
}

/* ===== 消息 tab 徽章 ===== */
.msg-tab-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 700;
    padding: 0 5px;
    background: var(--color-pink);
    color: white;
    margin-left: 4px;
    vertical-align: middle;
}

/* ===== 粉丝/关注列表 ===== */
.follow-list-page { max-width: 680px; margin: 0 auto; }
.user-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-card);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-sm);
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: transform var(--transition-fast);
}
.user-card:hover { transform: translateY(-2px); }
.user-card-avatar {
    width: 48px; height: 48px; flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--gradient-cool);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; font-weight: 700; color: white;
    overflow: hidden;
}
.user-card-info { flex: 1; min-width: 0; }
.user-card-name { font-size: 15px; font-weight: 600; color: var(--color-text); }
.user-card-meta { font-size: 12px; color: var(--color-text-lighter); display: flex; gap: var(--space-sm); margin-top: 2px; }
.user-card-sig { font-size: 12px; color: var(--color-text-light); margin-top: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== 个人主页可点击统计 ===== */
.profile-stat.clickable { cursor: pointer; transition: transform var(--transition-fast); }
.profile-stat.clickable:hover { transform: scale(1.1); }

/* ===== 消息统计卡片 ===== */
.msg-total-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 700;
    padding: 0 8px;
    background: var(--color-pink);
    color: white;
    vertical-align: middle;
    margin-left: 8px;
}
.msg-stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}
.msg-stat-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: var(--space-md) var(--space-sm);
    text-align: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.msg-stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.msg-stat-icon { font-size: 22px; margin-bottom: 4px; }
.msg-stat-num { font-size: 20px; font-weight: 800; color: var(--color-text); }
.msg-stat-label { font-size: 11px; color: var(--color-text-lighter); margin-top: 2px; }
@media (max-width: 600px) {
    .msg-stats-grid { grid-template-columns: repeat(3, 1fr); }
}