/* ==========================================================================
   北华大学成人高考信息网 - 主样式
   设计风格：医教行业经典蓝白
   ========================================================================== */

/* ===== CSS Variables ===== */
:root {
    --color-primary: #1E5FAB;        /* 深蓝主色 */
    --color-primary-dark: #154682;
    --color-primary-light: #2E7CD6;  /* 天蓝 */
    --color-accent: #D4AF37;         /* 金色点缀 */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F7FA;         /* 浅灰底 */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #E5E8EC;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,.08);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.10);
    --radius: 6px;
    --transition: .2s ease;
    --container-width: 1200px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "微软雅黑", "Hiragino Sans GB", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: 1.4; margin: 1.2em 0 .6em; color: #1a1a1a; }
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
p { margin: .8em 0; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: .8em 0; padding-left: 1.5em; }

/* ===== Container ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 16px;
}

/* ===== Site Header ===== */
.site-header {
    background: #fff;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-top {
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
    color: rgba(255,255,255,.85);
    font-size: 12px;
    padding: 6px 0;
}
.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-meta span, .header-tools a { color: rgba(255,255,255,.85); }
.header-meta .separator, .header-tools .separator { margin: 0 8px; color: rgba(255,255,255,.3); }
.header-tools a:hover { color: var(--color-accent); }

.header-main { padding: 18px 0; border-bottom: 1px solid var(--color-border); }
.header-main-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-primary);
}
.logo:hover { color: var(--color-primary-light); }
.logo-mark {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(30,95,171,.25);
    letter-spacing: -1px;
}
.logo-text strong {
    display: block;
    font-size: 22px;
    color: var(--color-primary);
    letter-spacing: .5px;
}
.logo-text small {
    display: block;
    font-size: 11px;
    color: var(--color-text-muted);
    letter-spacing: 1.5px;
    margin-top: 2px;
    font-weight: 400;
}

.header-tagline {
    flex: 1;
    text-align: center;
    padding: 0 16px;
    min-width: 0;
}
.header-tagline-line {
    font-size: 13px;
    color: #1a1a1a;
    line-height: 1.6;
    font-weight: 500;
    letter-spacing: .5px;
}
.header-tagline-line + .header-tagline-line {
    color: #b8941f;
    font-weight: 600;
}

.search-box {
    display: flex;
    width: 280px;
    max-width: 100%;
}
.search-box input {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid var(--color-primary);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}
.search-box input:focus { box-shadow: 0 0 0 3px rgba(30,95,171,.15); }
.search-box button {
    padding: 10px 22px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}
.search-box button:hover { background: var(--color-primary-dark); }

/* ===== Main Navigation ===== */
.main-nav {
    background: var(--color-primary);
}
.main-nav .container { display: flex; align-items: center; }
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    padding: 12px 16px;
    cursor: pointer;
}
.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    margin: 5px 0;
    transition: var(--transition);
}
.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-list li { position: relative; }
.nav-list a {
    display: block;
    padding: 14px 24px;
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}
.nav-list a:hover {
    background: var(--color-primary-dark);
    color: #fff;
}
.nav-list a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 3px;
    background: var(--color-accent);
    transition: all var(--transition);
    transform: translateX(-50%);
}
.nav-list a:hover::after { width: 70%; }
.nav-uni-link {
    background: linear-gradient(135deg, #D4AF37 0%, #b8941f 100%) !important;
    color: #1a1a1a !important;
    font-weight: 600 !important;
}
.nav-uni-link:hover {
    background: linear-gradient(135deg, #b8941f 0%, #D4AF37 100%) !important;
    color: #fff !important;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    background: var(--color-bg-alt);
    padding: 12px 0;
    font-size: 13px;
    color: var(--color-text-light);
}
.breadcrumb a { color: var(--color-text-light); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { margin: 0 6px; color: var(--color-text-muted); }

/* ===== 大学展示墙（首页动画） ===== */
.uni-wall {
    padding: 50px 0 10px;
    background: linear-gradient(180deg, #f8faff 0%, #fff 100%);
}
.uni-wall .container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 16px;
}
.uni-wall-title {
    text-align: center;
    margin-bottom: 8px;
}
.uni-wall-title h2 {
    font-size: 28px;
    color: #1E5FAB;
    margin: 0 0 8px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.uni-wall-title p {
    color: #666;
    margin: 0 0 30px;
    font-size: 14px;
}
.uni-wall-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
}
.uni-tile {
    background: #fff;
    border: 1px solid #E5E8EC;
    border-radius: 12px;
    padding: 26px 18px;
    text-align: center;
    color: #333;
    text-decoration: none;
    transition: all .3s cubic-bezier(.4, 0, .2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    min-height: 130px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    animation: tile-in .6s ease forwards;
}
.uni-tile:nth-child(1) { animation-delay: .05s; }
.uni-tile:nth-child(2) { animation-delay: .1s; }
.uni-tile:nth-child(3) { animation-delay: .15s; }
.uni-tile:nth-child(4) { animation-delay: .2s; }
.uni-tile:nth-child(5) { animation-delay: .25s; }
.uni-tile:nth-child(6) { animation-delay: .3s; }
.uni-tile:nth-child(7) { animation-delay: .35s; }
.uni-tile:nth-child(8) { animation-delay: .4s; }
.uni-tile:nth-child(9) { animation-delay: .45s; }
.uni-tile:nth-child(10) { animation-delay: .5s; }
.uni-tile:nth-child(11) { animation-delay: .55s; }
.uni-tile:nth-child(12) { animation-delay: .6s; }
@keyframes tile-in {
    to { opacity: 1; transform: translateY(0); }
}
.uni-tile::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 4px;
    background: var(--uni-color, #1E5FAB);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s ease;
}
.uni-tile:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 28px rgba(0,0,0,.12);
    border-color: var(--uni-color, #1E5FAB);
}
.uni-tile:hover::before {
    transform: scaleX(1);
}
.uni-tile-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--uni-color, #1E5FAB);
    margin: 0 0 8px;
    line-height: 1.4;
}
.uni-tile-count {
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}
.uni-tile-level {
    display: inline-block;
    margin-top: 2px;
    padding: 2px 10px;
    background: var(--uni-color, #1E5FAB);
    color: #fff;
    border-radius: 10px;
    font-size: 11px;
    opacity: .9;
}
.uni-tile-arrow {
    display: inline-block;
    margin-top: 8px;
    font-size: 12px;
    color: #D4AF37;
    opacity: 0;
    transform: translateY(-4px);
    transition: all .3s;
}
.uni-tile:hover .uni-tile-arrow {
    opacity: 1;
    transform: translateY(0);
}
@media (max-width: 768px) {
    .uni-wall-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    .uni-tile { padding: 20px 14px; min-height: 110px; }
    .uni-tile-name { font-size: 15px; }
}
@media (max-width: 480px) {
    .uni-wall-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Hero / Banner ===== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 28px 0 32px;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,.1) 0%, transparent 70%);
    border-radius: 50%;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212,175,55,.1) 0%, transparent 70%);
    border-radius: 50%;
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero h1 {
    font-size: 28px;
    color: #fff;
    margin: 0 0 10px;
    font-weight: 700;
    letter-spacing: 1px;
    white-space: nowrap;
}
.hero p {
    font-size: 14px;
    color: rgba(255,255,255,.92);
    margin: 0 0 12px;
    line-height: 1.7;
}
.hero-stats {
    display: flex;
    gap: 32px;
    margin-top: 16px;
}
.hero-stat { display: flex; flex-direction: column; }
.hero-stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}
.hero-stat-label {
    font-size: 13px;
    color: rgba(255,255,255,.8);
    margin-top: 6px;
}

/* ===== Main Content Layout ===== */
.main {
    padding: 20px 0 30px;
    min-height: 60vh;
}
.layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
}
.layout-single {
    display: block;
}

/* ===== Article Cards ===== */
.article-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}
@media (max-width: 768px) {
    .article-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}
@media (max-width: 480px) {
    .article-grid { grid-template-columns: 1fr; }
}
.article-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}
.article-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--color-primary-light);
}
.article-card-body { padding: 18px 20px; flex: 1; display: flex; flex-direction: column; }
.article-card-title {
    font-size: 17px;
    font-weight: 600;
    margin: 0 0 10px;
    line-height: 1.5;
}
.article-card-title a {
    color: var(--color-text);
}
.article-card-title a:hover { color: var(--color-primary); }
.article-card-summary {
    color: var(--color-text-light);
    font-size: 14px;
    line-height: 1.65;
    margin: 0 0 12px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-muted);
    padding-top: 10px;
    border-top: 1px dashed var(--color-border);
}
.article-card-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--color-bg-alt);
    color: var(--color-primary);
    border-radius: 10px;
    font-size: 11px;
    border: 1px solid var(--color-border);
}
.tag:hover { background: var(--color-primary); color: #fff; }

/* ===== Article List (text-only) ===== */
.article-list {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: grid;
    grid-template-columns: 1fr 1fr;
}
.article-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
    min-width: 0;
}
.article-list-item:nth-last-child(-n+2) { border-bottom: none; }
.article-list-item:hover { background: var(--color-bg-alt); }
.article-list-item .num {
    width: 22px;
    height: 22px;
    background: var(--color-bg-alt);
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.article-list-item.hot .num { background: var(--color-danger); color: #fff; }
.article-list-item.top3 .num { background: var(--color-accent); color: #fff; }
.article-list-item a {
    flex: 1;
    color: var(--color-text);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}
.article-list-item a:hover { color: var(--color-primary); }
.article-list-item .date {
    color: var(--color-text-muted);
    font-size: 11px;
    flex-shrink: 0;
    display: none;
}
@media (max-width: 768px) {
    .article-list { grid-template-columns: 1fr; }
    .article-list-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--color-border); }
    .article-list-item:last-child { border-bottom: none; }
    .article-list-item .date { display: inline; }
}

/* ===== Section Title ===== */
.section {
    margin-bottom: 40px;
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0;
}
.section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
    margin: 0;
    padding: 8px 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}
.section-title::before {
    content: '';
    width: 4px;
    height: 18px;
    background: var(--color-accent);
    border-radius: 2px;
}
.section-more {
    color: var(--color-text-muted);
    font-size: 13px;
}
.section-more:hover { color: var(--color-primary); }

/* ===== Sidebar ===== */
.sidebar { display: flex; flex-direction: column; gap: 20px; }
.widget {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.widget-head {
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    padding: 12px 18px;
    font-size: 15px;
    font-weight: 600;
}
.widget-body { padding: 14px 18px; }
.widget-list { list-style: none; padding: 0; margin: 0; }
.widget-list li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 14px;
    display: flex;
    align-items: baseline;
    gap: 6px;
}
.widget-list li:last-child { border-bottom: none; }
.widget-list .num {
    color: var(--color-text-muted);
    font-size: 12px;
    flex-shrink: 0;
    width: 20px;
}
.widget-list a {
    color: var(--color-text);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.widget-list a:hover { color: var(--color-primary); }

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag-cloud a {
    padding: 4px 12px;
    background: var(--color-bg-alt);
    border-radius: 14px;
    font-size: 13px;
    color: var(--color-text-light);
    transition: var(--transition);
}
.tag-cloud a:hover {
    background: var(--color-primary);
    color: #fff;
}

/* ===== Article Detail ===== */
.article-detail {
    background: #fff;
    padding: 30px 36px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.article-detail h1.article-title {
    font-size: 28px;
    color: #1a1a1a;
    text-align: center;
    margin: 0 0 16px;
    line-height: 1.5;
}
.article-meta {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 13px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
}
.article-meta span { margin: 0 10px; }
.article-content {
    font-size: 16px;
    line-height: 1.85;
    color: #2a2a2a;
}
.article-content h3 {
    font-size: 17px;
    color: var(--color-primary);
    padding-left: 12px;
    border-left: 4px solid var(--color-accent);
    margin: 28px 0 14px;
    background: var(--color-bg-alt);
    padding: 10px 14px;
    border-radius: 0 var(--radius) var(--radius) 0;
}
.article-content p { margin: 14px 0; }
.article-content img { margin: 16px auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.article-content strong { color: var(--color-primary); }
.article-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.article-tags-label { color: var(--color-text-light); font-size: 14px; }
.article-source {
    margin-top: 24px;
    padding: 14px 18px;
    background: var(--color-bg-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-text-light);
    font-size: 13px;
}
.article-disclaimer {
    margin-top: 16px;
    padding: 12px 16px;
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: var(--radius);
    color: #856404;
    font-size: 13px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin: 30px 0 10px;
    flex-wrap: wrap;
}
.pagination a, .pagination span {
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: 14px;
    transition: var(--transition);
}
.pagination a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination .current {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.pagination .disabled { color: var(--color-text-muted); background: var(--color-bg-alt); cursor: not-allowed; }

/* ===== Disclaimer (免责声明) ===== */
.site-disclaimer {
    background: #f8f9fa;
    border-top: 1px solid #E5E8EC;
    border-bottom: 1px solid #E5E8EC;
    padding: 15px 0 20px;
    color: #555;
}
.site-disclaimer .container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 16px;
}
.disclaimer-inner {
    background: #fff;
    border: 1px solid #E5E8EC;
    border-left: 4px solid #D4AF37;
    border-radius: 6px;
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
}
.disclaimer-title {
    font-size: 16px;
    color: #b8941f;
    margin: 0 0 10px;
    font-weight: 600;
    letter-spacing: .5px;
}
.site-disclaimer p {
    margin: 6px 0;
    font-size: 13px;
    line-height: 1.85;
    color: #555;
}
.disclaimer-beian {
    margin-top: 12px !important;
    padding-top: 10px;
    border-top: 1px dashed #E5E8EC;
    color: #888 !important;
    font-size: 12px !important;
    letter-spacing: .5px;
}
.disclaimer-beian a {
    color: #888;
    text-decoration: underline;
}

/* ===== Footer ===== */
.site-footer {
    background: linear-gradient(180deg, #1a1f2e 0%, #0d1320 100%);
    color: rgba(255,255,255,.7);
    padding: 50px 0 0;
    margin-top: 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-col h4 {
    color: #fff;
    font-size: 15px;
    margin: 0 0 14px;
    position: relative;
    padding-left: 10px;
}
.footer-col h4::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}
.footer-col p { font-size: 13px; line-height: 1.7; margin: 6px 0; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px 12px; }
.footer-links.friend-links { grid-template-columns: repeat(2, 1fr); }
.footer-links li { padding: 4px 0; font-size: 13px; }
.footer-links a { color: rgba(255,255,255,.65); }
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
    padding: 18px 0;
    text-align: center;
    font-size: 12px;
    color: rgba(255,255,255,.5);
}
.footer-bottom p { margin: 4px 0; }

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 9px 22px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn:hover { background: var(--color-primary-dark); color: #fff; }
.btn-accent { background: var(--color-accent); }
.btn-accent:hover { background: #b8941f; color: #fff; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }

/* ===== Utilities ===== */
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mb-20 { margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }

/* ===== Article Detail (V2 - 重新排版) ===== */
.article-detail {
    background: #fff;
    padding: 32px 38px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}
.article-title {
    font-size: 30px;
    line-height: 1.4;
    color: #1a1a1a;
    margin: 0 0 18px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-primary);
    font-weight: 700;
}
.article-meta {
    margin-bottom: 24px;
    padding: 12px 16px;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--color-text-light);
}
.article-meta span { margin-right: 16px; }

/* 内容目录 */
.article-toc {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8eef7 100%);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius);
    padding: 16px 20px;
    margin: 24px 0;
    font-size: 14px;
}
.toc-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.article-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.article-toc li { padding: 4px 0; line-height: 1.7; }
.article-toc li.toc-h2 { padding-left: 0; font-weight: 600; }
.article-toc li.toc-h3 { padding-left: 18px; color: var(--color-text-light); font-size: 13px; }
.article-toc a { color: var(--color-text); }
.article-toc a:hover { color: var(--color-primary); text-decoration: underline; }

/* 文章正文层级 */
.article-content {
    font-size: 16px;
    line-height: 1.95;
    color: #2a2a2a;
    word-wrap: break-word;
}
.article-content h2 {
    font-size: 24px;
    color: #fff;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    padding: 14px 22px;
    margin: 40px -22px 22px;
    border-radius: var(--radius);
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 90px;
}
.article-content h2::before {
    content: '◆';
    color: var(--color-accent);
    margin-right: 10px;
}
.article-content h3 {
    font-size: 19px;
    color: var(--color-primary);
    padding: 12px 18px;
    border-left: 5px solid var(--color-accent);
    margin: 32px 0 16px;
    background: linear-gradient(90deg, var(--color-bg-alt) 0%, rgba(245,247,250,0) 100%);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-weight: 600;
    scroll-margin-top: 90px;
}
.article-content h4 {
    font-size: 17px;
    color: var(--color-primary-dark);
    margin: 24px 0 12px;
    padding-left: 14px;
    border-left: 3px solid var(--color-primary);
}
.article-content p {
    margin: 14px 0;
    text-indent: 2em;
    color: #2a2a2a;
}
.article-content ul, .article-content ol {
    margin: 16px 0;
    padding-left: 8px;
    list-style: none;
}
.article-content ul li {
    padding: 8px 14px 8px 30px;
    margin: 6px 0;
    background: var(--color-bg-alt);
    border-left: 3px solid var(--color-primary-light);
    border-radius: 0 var(--radius) var(--radius) 0;
    position: relative;
    line-height: 1.85;
    text-indent: 0;
}
.article-content ul li::before {
    content: '▸';
    position: absolute;
    left: 12px;
    top: 8px;
    color: var(--color-accent);
    font-weight: 700;
}
.article-content ol li {
    padding: 6px 0;
    margin-left: 8px;
    text-indent: 0;
    list-style: decimal inside;
}
.article-content blockquote {
    margin: 20px 0;
    padding: 16px 22px;
    background: #fff8e1;
    border-left: 4px solid var(--color-accent);
    color: #5a4500;
    font-size: 15px;
    border-radius: 0 var(--radius) var(--radius) 0;
    text-indent: 0;
}
.article-content img {
    margin: 20px auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}
.article-content strong { color: var(--color-primary); font-weight: 600; }
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}
.article-content table th, .article-content table td {
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    text-align: left;
}
.article-content table th {
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
}
.article-content table tr:nth-child(even) td { background: var(--color-bg-alt); }

/* 标签 */
.article-tags {
    margin-top: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.article-tags-label { color: var(--color-text-light); font-size: 14px; font-weight: 600; }
.article-tags .tag {
    padding: 5px 12px;
    background: var(--color-bg-alt);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: 13px;
    transition: var(--transition);
    border: 1px solid var(--color-border);
}
.article-tags .tag:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.article-source {
    margin-top: 24px;
    padding: 14px 18px;
    background: var(--color-bg-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--color-text-light);
    font-size: 13px;
}

.article-disclaimer {
    margin-top: 20px;
    padding: 14px 18px;
    background: #fff8e1;
    border: 1px solid #ffe082;
    border-radius: var(--radius);
    color: #856404;
    font-size: 13px;
    line-height: 1.7;
}

/* 上一篇下一篇 */
.prev-next-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px dashed var(--color-border);
    flex-wrap: wrap;
}
.pn-link {
    flex: 1;
    min-width: 220px;
    padding: 14px 18px;
    background: var(--color-bg-alt);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--color-text-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid transparent;
}
.pn-link:hover { background: #fff; color: var(--color-primary); border-color: var(--color-primary); box-shadow: var(--shadow-sm); }
.pn-disabled { color: var(--color-text-muted); cursor: not-allowed; }
.pn-disabled:hover { background: var(--color-bg-alt); border-color: transparent; box-shadow: none; }
.pn-dir { font-size: 12px; color: var(--color-text-muted); margin-bottom: 6px; font-weight: 600; }
.pn-prev .pn-dir::before { content: '◀ '; color: var(--color-accent); }
.pn-next { text-align: right; }
.pn-next .pn-dir::after { content: ' ▶'; color: var(--color-accent); }
.pn-title { font-size: 14px; line-height: 1.5; }

/* 相关推荐卡片化 */
.widget-related { padding: 6px 14px !important; }
.related-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px dashed var(--color-border);
    font-size: 13px;
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
}
.related-item:last-child { border-bottom: none; }
.related-item:hover { color: var(--color-primary); padding-left: 6px; }
.related-title { flex: 1; line-height: 1.5; }
.related-date { color: var(--color-text-muted); font-size: 11px; margin-left: 8px; flex-shrink: 0; }

/* 栏目页头部 */
.column-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    padding: 24px 28px;
    border-radius: var(--radius);
    margin-bottom: 22px;
    box-shadow: var(--shadow-md);
}
.column-title {
    font-size: 24px;
    color: #fff;
    margin: 0 0 8px;
    font-weight: 700;
}
.column-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin: 0;
    line-height: 1.6;
}

/* 文章卡片列表 */
.article-list {
    display: grid;
    gap: 16px;
}
.article-card {
    background: #fff;
    padding: 22px 26px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid transparent;
}
.article-card:hover { box-shadow: var(--shadow-md); border-left-color: var(--color-accent); transform: translateY(-2px); }
.article-card-title {
    font-size: 18px;
    margin: 0 0 10px;
    line-height: 1.5;
}
.article-card-title a { color: #1a1a1a; }
.article-card-title a:hover { color: var(--color-primary); }
.article-card-meta {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}
.article-card-meta span { margin-right: 14px; }
.article-card-summary {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.75;
    margin: 8px 0 12px;
    text-indent: 0;
}
.article-card-more {
    display: inline-block;
    font-size: 13px;
    color: var(--color-primary);
    font-weight: 600;
}
.article-card-more:hover { color: var(--color-accent); }

/* 栏目导航高亮 */
.widget-list li.current a {
    color: var(--color-primary);
    font-weight: 600;
}
.widget-list li.current {
    background: var(--color-bg-alt);
    border-radius: var(--radius);
}