/* 基础样式与主题变量（可根据品牌色调整） */
:root {
 --brand: #2563eb;
 --brand-2: #06b6d4;
 --accent: #ff5f1f;
 --text: #111827;
 --muted: #6b7280;
 --bg: #ffffff;
 --bg-soft: #f8fafc;
 --surface: #ffffff;
 --border: #e5e7eb;
 --radius: 16px;
 --shadow-1: 0 8px 30px rgba(0,0,0,.06);
 --shadow-2: 0 18px 60px rgba(17,24,39,.12);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
 margin: 0;
 padding-top: 64px; /* 为固定头部留出空间 */
 font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 color: var(--text);
 background: radial-gradient(1200px 500px at 15% -10%, rgba(123,92,255,.20), transparent),
 radial-gradient(1200px 500px at 85% -10%, rgba(0,198,255,.20), transparent),
 linear-gradient(180deg, #fbfdff 0%, #f7faff 60%, #ffffff 100%);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }

.container { width: min(1300px, 94%); margin: 0 auto; }
.text-center { text-align: center; }
.section { padding: 6.25vw 0; }
.section h2 { font-size: 2.5vw; margin: 0 0 0.875vw; letter-spacing: .2px; font-weight: 600; }
.highlight { color: #ff6b35; font-size: 1.2em; font-weight: 700; }
.section-desc { color: var(--muted); margin: 0 0 2vw; font-size: 1.2vw; line-height: 1.6; }
.section + .section { border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(17,24,39,.02), rgba(17,24,39,0)); }

.skip-link { position: absolute; left: -9999px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.skip-link:focus { left: 16px; top: 16px; width: auto; height: auto; background: #fff; padding: 8px 12px; border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,.08); }

/* 头部 */
.site-header { 
 position: fixed; 
 top: 0; 
 left: 0; 
 right: 0; 
 z-index: 50; 
 background: rgba(255,255,255,0.6); 
 backdrop-filter: blur(12px); 
 border-bottom: 1px solid var(--border); 
 transform: translateY(0);
 transition: transform 0.3s ease;
}
.site-header.nav-hidden { transform: translateY(-100%); }
.site-header.hidden {
 transform: translateY(-100%);
}
/* 兼容新BEM命名与旧命名 */
.header-inner, .header__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; width: min(1300px, 94%); margin: 0 auto; }
.brand, .header__brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
.site-nav ul, .header__nav { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
.site-nav a, .header__nav a { 
 color: var(--text); 
 padding: 0.75vw 1vw;
 min-height: 44px;
 min-width: 44px;
 display: inline-flex;
 align-items: center;
 justify-content: center;
 border-radius: 6px;
 transition: background-color 0.2s ease;
}
.site-nav a:hover, .header__nav a:hover {
 background-color: rgba(37, 99, 235, 0.1);
}
.site-nav li, .header__nav li { position: relative; }

/* 下拉菜单 */
.dropdown-menu { 
 position: absolute; 
 top: 100%; 
 left: 0; 
 background: #fff; 
 border-radius: 8px; 
 box-shadow: 0 8px 32px rgba(0,0,0,0.12); 
 padding: 8px 0; 
 min-width: 180px; 
 opacity: 0; 
 visibility: hidden; 
 transform: translateY(-10px); 
 transition: all 0.3s ease; 
 z-index: 1000;
 list-style: none;
 margin: 0;
}
.dropdown:hover .dropdown-menu { 
 opacity: 1; 
 visibility: visible; 
 transform: translateY(0); 
}
.dropdown-menu li { 
 display: block; 
 margin: 0; 
}
.dropdown-menu a { 
 display: block; 
 padding: 8px 16px; 
 color: var(--text); 
 font-size: 14px; 
 transition: all 0.2s ease; 
 text-decoration: none;
}
.dropdown-menu a:hover { 
 background: rgba(255,107,53,0.1); 
 color: #ff6b35; 
}
.nav-toggle, .header__toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--border); background: #fff; align-items: center; justify-content: center; }
.nav-toggle-bar, .header__toggle-bar { width: 20px; height: 2px; background: var(--text); position: relative; display: block; }
.nav-toggle-bar::before, .nav-toggle-bar::after, .header__toggle-bar::before, .header__toggle-bar::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--text); }
.nav-toggle-bar::before, .header__toggle-bar::before { top: -6px; }
.nav-toggle-bar::after, .header__toggle-bar::after { top: 6px; }

.btn { 
 display: inline-flex; 
 align-items: center; 
 justify-content: center; 
 padding: 1.2vw 2.5vw; 
 min-height: 44px;
 min-width: 44px;
 border-radius: 999px; 
 border: 1px solid var(--border); 
 font-weight: 600; 
 letter-spacing: .2px; 
 font-size: 1.2vw; 
 transition: all 0.3s ease; 
 position: relative; 
 overflow: hidden; 
}
.btn-primary { 
 background: linear-gradient(135deg, #ff6b35, #ff8c42); 
 color: #fff; 
 border: none; 
 box-shadow: 0 8px 32px rgba(255, 107, 53, 0.4);
 font-size: 1.4vw;
 padding: 1.5vw 3vw;
 font-weight: 700;
 text-transform: uppercase;
 letter-spacing: 0.5px;
}
.btn-primary::before {
 content: '';
 position: absolute;
 top: 0;
 left: -100%;
 width: 100%;
 height: 100%;
 background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
 transition: left 0.6s ease;
}
.btn-primary:hover::before {
 left: 100%;
}
.btn-primary:hover { 
 transform: translateY(-3px) scale(1.05); 
 box-shadow: 0 12px 48px rgba(255, 107, 53, 0.6);
 background: linear-gradient(135deg, #ff5722, #ff7043);
}
.btn-ghost { 
 background: rgba(255,255,255,0.9); 
 backdrop-filter: blur(10px);
 border: 2px solid rgba(255,107,53,0.3);
 color: #ff6b35;
 font-weight: 600;
}
.btn-ghost:hover { 
 background: rgba(255,107,53,0.1); 
 border-color: #ff6b35;
 transform: translateY(-2px); 
 box-shadow: 0 8px 25px rgba(255,107,53,0.2); 
}
.text-link { color: var(--brand); font-weight: 600; text-decoration: none; transition: color 0.2s ease; padding: 0.5vw 0.75vw; min-height: 44px; display: inline-flex; align-items: center; }
.text-link:hover { color: #5b3fd9; }

/* 英雄区 */
.hero { padding: 7.5vw 0 4.375vw; position: relative; overflow: hidden; }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4.375vw); opacity: .35; }
.hero::before { width: 34.375vw; height: 34.375vw; left: -8.125vw; top: -10vw; background: radial-gradient(closest-side, var(--brand), transparent); }
.hero::after { width: 34.375vw; height: 34.375vw; right: -8.125vw; top: -11.25vw; background: radial-gradient(closest-side, var(--brand-2), transparent); }
.hero-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 3.5vw; align-items: center; }
.hero-copy h1 { font-size: 4vw; margin: 0 0 1.125vw; line-height: 1.1; font-weight: 700; }
.hero-copy p { color: var(--muted); margin: 0 0 1.75vw; font-size: 1.4vw; line-height: 1.5; }
.cta-group { display: flex; gap: 2vw; justify-content: center; margin-top: 2vw; align-items: center; }
.hero-media { filter: drop-shadow(0 28px 90px rgba(0,0,0,.15)); }

/* 卡片网格 */
.grid { display: grid; gap: 1.25vw; }
.cards { grid-template-columns: repeat(4, 1fr); }
.card { border-radius: var(--radius); overflow: hidden; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-1); transition: transform .25s ease, box-shadow .25s ease; }
.card:hover { transform: translateY(-0.25vw); box-shadow: var(--shadow-2); }

/* 皮肤展示区 */
.skins-showcase { 
 margin: 0 calc(-50vw + 50%); 
 border-radius: var(--radius); 
 overflow: hidden; 
 box-shadow: var(--shadow-1); 
 position: relative; 
 height: 320px;
 width: 100vw;
 max-width: none;
}
#scrollContent { 
 display: flex; 
 animation: scroll-left 20s linear infinite; 
 white-space: nowrap;
 height: 100%;
}
#scrollContent:hover { animation-play-state: paused; }
.scroll-item { 
 flex-shrink: 0; 
 width: 1920px;
 height: 320px; 
 margin-right: 32px; 
 border-radius: 12px; 
 overflow: hidden;
 box-shadow: 0 4px 12px rgba(0,0,0,.1);
 object-fit: cover;
}
@keyframes scroll-left {
 0% { transform: translateX(0); }
 100% { transform: translateX(-50%); }
}

/* 手写展示区 */
.handwriting-showcase { display: flex; flex-direction: column; gap: 0; margin: 0 -1.25vw; border-radius: var(--radius); overflow: hidden; box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.handwriting-showcase img { 
 width: 100% !important; 
 height: auto !important; 
 max-width: 80vw !important; 
 max-height: calc(80vw * 591 / 1202) !important;
 display: block; 
 margin: 0 auto;
 object-fit: contain;
}

/* 同步展示区 */
.sync img {
 width: 100vw !important;
 height: auto !important;
 max-width: 100vw !important;
 max-height: calc(100vw * 625.25 / 1920) !important;
 display: block;
 margin-left: calc(50% - 50vw);
 margin-right: calc(50% - 50vw);
 object-fit: contain;
}

/* 表情展示区 */
.emoji-showcase {
 display: flex;
 justify-content: space-between;
 align-items: center;
 gap: 2vw;
 margin: 2vw -2vw 0;
 padding: 0 2vw;
}

.emoji-showcase img {
 flex: 1;
 max-width: 20vw;
 height: auto;
 object-fit: contain;
 transition: transform 0.3s ease;
}

.emoji-showcase img:hover {
 transform: scale(1.1);
}

/* 功能列表 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75vw; }
.feature { padding: 1.75vw; border: 1px solid var(--border); border-radius: 1.125vw; background: linear-gradient(180deg, #ffffff, #f9fbff); box-shadow: var(--shadow-1); }
.feature h3 { margin: 0 0 0.625vw; font-size: 1.6vw; font-weight: 600; }
.feature p { margin: 0 0 0.875vw; color: var(--muted); font-size: 1vw; line-height: 1.5; }

/* CTA 底部区块更突出 */
.cta-bottom { background: radial-gradient(700px 180px at 50% 0%, rgba(123,92,255,.12), transparent); }
.cta-bottom h2 { font-size: 2.2vw; margin-bottom: 1.125vw; font-weight: 600; }
.cta-group { display: flex; gap: 1vw; justify-content: center; }

/* 底部 */
.site-footer { border-top: 1px solid var(--border); background: #f8f9fa; }
.footer-inner { padding: 3vw 0 1.5vw; }
.footer-content { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2vw; margin-bottom: 2vw; }
.footer-section h3 { font-size: 1.1vw; font-weight: 600; margin: 0 0 1vw; color: var(--text); }
.footer-section nav { display: flex; flex-direction: column; gap: 0.5vw; }
.footer-section a { color: #4b5563; text-decoration: none; font-size: 0.9vw; transition: color 0.2s ease; padding: 0.5vw 0.75vw; min-height: 44px; display: inline-flex; align-items: center; }
.footer-section a:hover { color: var(--brand); }
.footer-bottom { 
 border-top: 1px solid var(--border); 
 padding: 2vw 0; 
 text-align: center; 
}

.footer-links { 
 display: flex; 
 justify-content: center; 
 align-items: center; 
 gap: 0; 
 margin-bottom: 1.5vw; 
 flex-wrap: wrap; 
}

.footer-links a { color: var(--text); text-decoration: none; font-weight: 500; font-size: 0.9vw; transition: color 0.3s ease; padding: 0.75vw 1.25vw; min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 6px; }

.footer-links a:hover { 
 color: var(--brand); 
 background: rgba(37, 99, 235, 0.1); 
}

.footer-links .divider { 
 color: var(--border); 
 font-size: 0.7vw; 
 margin: 0 0.5vw; 
}

.footer-copyright { 
 display: flex; 
 flex-direction: column; 
 align-items: center; 
 gap: 1vw; 
}

.footer-bottom .legal-links { 
 margin-bottom: 1.5vw; 
}

.copyright-text { 
 color: var(--muted); 
 font-size: 0.8vw; 
 margin: 0; 
 line-height: 1.5; 
}

.copyright-text a { 
 color: #5b3fd9; 
 text-decoration: underline; 
 text-decoration-color: rgba(91, 63, 217, 0.4);
 text-underline-offset: 2px;
 transition: color 0.3s ease, text-decoration-color 0.3s ease; 
}

.copyright-text a:hover { 
 color: #4a2fc7; 
 text-decoration-color: #4a2fc7; 
}

.legal-links { 
 display: flex; 
 align-items: center; 
 gap: 1.5vw; 
 font-size: 0.8vw; 
}

.legal-links a { 
 color: var(--muted); 
 text-decoration: none; 
 transition: color 0.3s ease; 
 padding: 0.3vw 0.5vw; 
 border-radius: 4px; 
}

.legal-links a:hover { 
 color: var(--brand); 
 background: rgba(37, 99, 235, 0.1); 
}

.divider { 
 color: var(--border); 
 font-size: 0.7vw; 
 margin: 0 0.5vw; 
}

/* 专题页面样式 */
.breadcrumb { background: #f8f9fa; padding: 1vw 0; border-bottom: 1px solid var(--border); }
.breadcrumb ol { display: flex; gap: 0.5vw; list-style: none; margin: 0; padding: 0; }
.breadcrumb li:not(:last-child)::after { content: ">"; margin: 0 0.5vw; color: var(--muted); }
.breadcrumb a { color: var(--brand); text-decoration: none; }
.breadcrumb a:hover { text-decoration: none; }

.page-header { padding: 4vw 0; background: linear-gradient(135deg, #f8f9fa, #ffffff); }
.page-header h1 { font-size: 3vw; margin: 0 0 1vw; font-weight: 700; }
.page-desc { font-size: 1.3vw; color: var(--muted); margin: 0; line-height: 1.6; }

.features-detail { padding: 4vw 0; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2vw; }
.feature-card { 
 background: #fff; 
 border-radius: 12px; 
 padding: 2vw; 
 box-shadow: 0 4px 20px rgba(0,0,0,0.08); 
 border: 1px solid var(--border);
 transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card:hover { 
 transform: translateY(-4px); 
 box-shadow: 0 8px 30px rgba(0,0,0,0.12); 
}
.feature-card h2 { 
 font-size: 1.5vw; 
 margin: 0 0 1vw; 
 color: var(--text); 
 font-weight: 600;
}
.feature-card p { 
 color: var(--muted); 
 margin: 0 0 1vw; 
 line-height: 1.6; 
 font-size: 1vw;
}
.feature-card ul { 
 list-style: none; 
 padding: 0; 
 margin: 0; 
}
.feature-card li { 
 padding: 0.3vw 0; 
 color: var(--text); 
 font-size: 0.9vw;
 position: relative;
 padding-left: 1.2vw;
}
.feature-card li::before { 
 content: "✓"; 
 position: absolute; 
 left: 0; 
 color: #ff6b35; 
 font-weight: bold;
}

.tips { background: #f8f9fa; }
.tips h2 { text-align: center; margin-bottom: 2vw; font-size: 2.2vw; }
.tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5vw; }
.tip-item { 
 background: #fff; 
 padding: 1.5vw; 
 border-radius: 8px; 
 box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.tip-item h3 { 
 font-size: 1.2vw; 
 margin: 0 0 0.8vw; 
 color: var(--text); 
 font-weight: 600;
}
.tip-item p { 
 color: var(--muted); 
 margin: 0; 
 line-height: 1.5; 
 font-size: 0.95vw;
}

/* 页面头部样式 */
.header-content h1 { 
 font-size: 4vw; 
 margin: 0 0 0.5vw; 
 font-weight: 700; 
 background: linear-gradient(135deg, #ff6b35, #ff8c42);
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
}
.header-content h2 { 
 font-size: 2vw; 
 margin: 0 0 1.5vw; 
 color: var(--muted); 
 font-weight: 400;
}
.stats-grid { 
 display: grid; 
 grid-template-columns: repeat(4, 1fr); 
 gap: 2vw; 
 margin-top: 3vw; 
}
.stat-item { 
 text-align: center; 
 padding: 1.5vw; 
 background: rgba(255,255,255,0.8); 
 border-radius: 12px; 
 box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.stat-number { 
 font-size: 2.5vw; 
 font-weight: 700; 
 color: #ff6b35; 
 margin-bottom: 0.5vw;
}
.stat-label { 
 font-size: 0.9vw; 
 color: var(--muted); 
 font-weight: 500;
}

/* 文章列表样式 */
.articles-section { padding: 4vw 0; }
.articles-grid { 
 display: grid; 
 grid-template-columns: repeat(2, 1fr); 
 gap: 2vw; 
}
.article-card { 
 background: #fff; 
 border-radius: 16px; 
 padding: 2.5vw; 
 box-shadow: 0 8px 32px rgba(0,0,0,0.08); 
 border: 1px solid var(--border);
 transition: all 0.3s ease;
 position: relative;
 overflow: hidden;
}
.article-card::before {
 content: '';
 position: absolute;
 top: 0;
 left: 0;
 right: 0;
 height: 4px;
 background: linear-gradient(90deg, #ff6b35, #ff8c42);
 transform: scaleX(0);
 transition: transform 0.3s ease;
}
.article-card:hover::before {
 transform: scaleX(1);
}
.article-card:hover { 
 transform: translateY(-8px); 
 box-shadow: 0 16px 48px rgba(0,0,0,0.15); 
}
.article-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: 1vw;
}
.article-category {
 background: linear-gradient(135deg, #ff6b35, #ff8c42);
 color: #fff;
 padding: 0.3vw 0.8vw;
 border-radius: 20px;
 font-size: 0.7vw;
 font-weight: 600;
}
.article-date {
 color: var(--muted);
 font-size: 0.8vw;
 font-weight: 500;
}
.article-card h2 { 
 font-size: 1.4vw; 
 margin: 0 0 1vw; 
 line-height: 1.3;
}
.article-card h2 a { 
 color: var(--text); 
 text-decoration: none; 
 transition: color 0.2s ease;
}
.article-card h2 a:hover { 
 color: #ff6b35; 
}
.article-card p { 
 color: var(--muted); 
 margin: 0 0 1.5vw; 
 line-height: 1.6; 
 font-size: 0.95vw;
}
.article-tags { 
 display: flex; 
 gap: 0.5vw; 
 flex-wrap: wrap; 
 margin-bottom: 1.5vw;
}
.tag { 
 background: rgba(255,107,53,0.1); 
 color: #ff6b35; 
 padding: 0.3vw 0.8vw; 
 border-radius: 15px; 
 font-size: 0.7vw; 
 font-weight: 500;
 transition: all 0.2s ease;
}
.tag:hover {
 background: rgba(255,107,53,0.2);
 transform: translateY(-1px);
}
.article-footer {
 border-top: 1px solid #f0f0f0;
 padding-top: 1vw;
}
.read-more {
 color: #ff6b35;
 text-decoration: none;
 font-weight: 600;
 font-size: 0.9vw;
 transition: all 0.2s ease;
 display: inline-flex;
 align-items: center;
 gap: 0.3vw;
}
.read-more:hover {
 color: #ff5722;
 transform: translateX(4px);
}

/* 文章内容页面样式 */
.article-content { 
 padding: 4vw 0; 
 background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
 min-height: 100vh;
}
.article-content .container { 
 max-width: 900px; 
 background: #fff;
 border-radius: 20px;
 box-shadow: 0 20px 60px rgba(0,0,0,0.1);
 padding: 4vw;
 margin: 2vw auto;
}
.article-content .article-header {
 text-align: center;
 margin-bottom: 4vw;
 padding-bottom: 3vw;
 border-bottom: 3px solid #f0f0f0;
 position: relative;
}
.article-content .article-header::after {
 content: '';
 position: absolute;
 bottom: -3px;
 left: 50%;
 transform: translateX(-50%);
 width: 60px;
 height: 3px;
 background: linear-gradient(90deg, #ff6b35, #ff8c42);
 border-radius: 2px;
}
.article-meta {
 display: flex;
 justify-content: center;
 gap: 2vw;
 margin-bottom: 2vw;
 flex-wrap: wrap;
}
.article-category {
 background: linear-gradient(135deg, #ff6b35, #ff8c42);
 color: #fff;
 padding: 0.6vw 1.5vw;
 border-radius: 25px;
 font-size: 0.8vw;
 font-weight: 600;
 box-shadow: 0 4px 15px rgba(255,107,53,0.3);
 transition: all 0.3s ease;
}
.article-category:hover {
 transform: translateY(-2px);
 box-shadow: 0 6px 20px rgba(255,107,53,0.4);
}
.article-date, .article-read-time {
 color: var(--muted);
 font-size: 0.8vw;
 font-weight: 500;
 background: rgba(255,107,53,0.1);
 padding: 0.4vw 1vw;
 border-radius: 15px;
}
.article-content h1 {
 font-size: 2.2vw;
 margin: 0 0 1.2vw;
 line-height: 1.3;
 color: var(--text);
 font-weight: 700;
 background: linear-gradient(135deg, #2c3e50, #34495e);
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
}
.article-summary {
 font-size: 1vw;
 color: var(--muted);
 line-height: 1.6;
 margin: 0;
 font-style: italic;
 background: rgba(255,107,53,0.05);
 padding: 1.2vw;
 border-radius: 10px;
 border-left: 3px solid #ff6b35;
}
.article-body {
 line-height: 1.8;
 color: var(--text);
 font-size: 1.05vw;
}
.article-body h2 {
 font-size: 1.6vw;
 margin: 3vw 0 1.5vw;
 color: var(--text);
 font-weight: 700;
 position: relative;
 padding-left: 1.2vw;
}
.article-body h2::before {
 content: '';
 position: absolute;
 left: 0;
 top: 50%;
 transform: translateY(-50%);
 width: 6px;
 height: 30px;
 background: linear-gradient(135deg, #ff6b35, #ff8c42);
 border-radius: 3px;
}
.article-body h3 {
 font-size: 1.3vw;
 margin: 2.5vw 0 1.2vw;
 color: #2c3e50;
 font-weight: 600;
 position: relative;
 padding-left: 0.8vw;
}
.article-body h3::before {
 content: '▶';
 position: absolute;
 left: 0;
 color: #ff6b35;
 font-size: 0.8em;
}
.article-body p {
 font-size: 0.95vw;
 margin: 0 0 1.5vw;
 text-align: justify;
 text-indent: 2em;
}
.article-body ul, .article-body ol {
 margin: 0 0 2vw;
 padding-left: 2.5vw;
 background: rgba(255,107,53,0.03);
 padding: 1.5vw 2.5vw;
 border-radius: 8px;
 border-left: 3px solid rgba(255,107,53,0.2);
}
.article-body li {
 font-size: 1.05vw;
 margin: 0.8vw 0;
 line-height: 1.7;
 position: relative;
}
.article-body ul li::before {
 content: '●';
 color: #ff6b35;
 font-weight: bold;
 position: absolute;
 left: -1.5vw;
}
.article-body ol li {
 counter-increment: list-counter;
}
.article-body ol {
 counter-reset: list-counter;
}
.article-body ol li::before {
 content: counter(list-counter) '.';
 color: #ff6b35;
 font-weight: bold;
 position: absolute;
 left: -1.5vw;
}
.article-body strong {
 color: #ff6b35;
 font-weight: 700;
 background: rgba(255,107,53,0.1);
 padding: 0.1vw 0.3vw;
 border-radius: 4px;
}
.article-body blockquote {
 background: linear-gradient(135deg, rgba(255,107,53,0.05), rgba(255,140,66,0.05));
 border-left: 4px solid #ff6b35;
 padding: 2vw;
 margin: 2vw 0;
 border-radius: 8px;
 font-style: italic;
 position: relative;
}
.article-body blockquote::before {
 content: '"';
 font-size: 4vw;
 color: #ff6b35;
 position: absolute;
 top: -1vw;
 left: 1vw;
 opacity: 0.3;
}
.article-footer {
 margin-top: 5vw;
 padding-top: 3vw;
 border-top: 2px solid #f0f0f0;
 display: flex;
 justify-content: space-between;
 align-items: center;
 flex-wrap: wrap;
 gap: 2vw;
 background: rgba(255,107,53,0.02);
 padding: 3vw;
 border-radius: 12px;
}
.article-actions {
 display: flex;
 gap: 1.5vw;
}
.article-actions .btn {
 padding: 0.8vw 2vw;
 font-size: 0.9vw;
 border-radius: 25px;
 transition: all 0.3s ease;
}
.article-actions .btn:hover {
 transform: translateY(-2px);
 box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* ===== 文章页 新样式 ===== */
.article-hero {
 background: linear-gradient(135deg, rgba(37,99,235,.10), rgba(6,182,212,.08));
 border-bottom: 1px solid var(--border);
 padding: 2.5vw 0;
 margin: 0 0 1.5vw;
}
.article-badge {
 display: inline-flex;
 align-items: center;
 gap: .5em;
 background: rgba(37,99,235,.12);
 color: #2563eb;
 border: 1px solid rgba(37,99,235,.25);
 padding: .35em .8em;
 border-radius: 999px;
 font-size: .9em;
 font-weight: 700;
}
.article-kicker {
 margin: .8vw 0 0;
 color: var(--muted);
 font-size: 1.05vw;
 line-height: 1.7;
}
.article-keypoints {
 padding: .5vw 0 1.5vw;
}
.keypoints {
 list-style: none;
 margin: 0;
 padding: 0;
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: 1vw;
}
.keypoints li {
 background: #fff;
 border: 1px solid var(--border);
 border-left: 4px solid #ff6b35;
 border-radius: 10px;
 padding: 1vw 1.25vw;
 color: var(--text);
 box-shadow: 0 4px 12px rgba(0,0,0,.04);
}
.keypoints li strong { color: var(--text); }

/* 通用富文本优化 */
.prose p { line-height: 1.85; margin: 0 0 1.1em; color: var(--text); }
.prose h2 { margin: 2em 0 1em; font-weight: 700; font-size: 1.6vw; }
.prose h3 { margin: 1.5em 0 .8em; font-weight: 600; font-size: 1.25vw; }
.prose ul, .prose ol { margin: 0 0 1.4em; padding-left: 1.4em; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 2px; }
.prose code { background: rgba(17,24,39,.04); padding: .15em .4em; border-radius: 4px; }
.prose blockquote {
 background: linear-gradient(135deg, rgba(37,99,235,.05), rgba(6,182,212,.05));
 border-left: 4px solid var(--brand);
 padding: 1.2em 1.4em;
 border-radius: 8px;
 margin: 1.5em 0;
 color: var(--text);
}

@media (max-width: 960px) {
 .article-kicker { font-size: max(14px, 2.6vw); }
 .keypoints { grid-template-columns: 1fr; gap: 2.2vw; }
 .keypoints li { padding: 3.5vw; }
}
/* 响应式 */
@media (max-width: 960px) {
 .hero-inner { grid-template-columns: 1fr; text-align: center; }
 .cta-group { justify-content: center; gap: 3vw; margin-top: 3vw; }
 .cards { grid-template-columns: repeat(2, 1fr); }
 .feature-list { grid-template-columns: 1fr; }
 .hero-copy h1 { font-size: max(44px, 8vw); }
 .section h2 { font-size: max(32px, 5vw); }
 .highlight { font-size: 1.3em; }
 .section-desc { font-size: max(16px, 2.5vw); }
 .btn { font-size: max(16px, 2.8vw); padding: max(14px, 2vw) max(24px, 3vw); }
 .btn-primary { 
 font-size: max(18px, 3.2vw); 
 padding: max(16px, 2.5vw) max(28px, 3.5vw);
 font-weight: 700;
 }
 .feature h3 { font-size: max(18px, 3vw); }
 .feature p { font-size: max(14px, 2vw); }
 .cta-bottom h2 { font-size: max(28px, 4vw); }
 .skins-showcase { margin: 0 -1vw; }
 .handwriting-showcase { margin: 0 -1vw; }
 .handwriting-showcase img { max-width: 85vw; max-height: calc(85vw * 591 / 1202); }
 .sync img { 
 width: 100vw !important; 
 margin-left: calc(50% - 50vw); 
 margin-right: calc(50% - 50vw); 
 max-height: calc(100vw * 625.25 / 1920); 
 }
 .emoji-showcase {
 flex-direction: row;
 gap: 1vw;
 margin: 2vw -1vw 0;
 padding: 0 1vw;
 }
 .emoji-showcase img {
 max-width: 22vw;
 }
 .footer-content { grid-template-columns: repeat(2, 1fr); gap: 3vw; }
 .footer-section h3 { font-size: max(16px, 3vw); }
 .footer-section a { font-size: max(14px, 2.5vw); }
 .footer-bottom { flex-direction: column; gap: 2vw; text-align: center; }
 .footer-links { flex-wrap: wrap; justify-content: center; }
 .footer-links a { font-size: max(14px, 2.5vw); }
 .copyright { font-size: max(12px, 2vw); }
 
 /* 专题页面移动端样式 */
 .page-header h1 { font-size: max(28px, 5vw); }
 .page-desc { font-size: max(16px, 2.5vw); }
 .feature-grid { grid-template-columns: 1fr; gap: 2vw; }
 .feature-card { padding: 3vw; }
 .feature-card h2 { font-size: max(20px, 3.5vw); }
 .feature-card p { font-size: max(14px, 2.2vw); }
 .feature-card li { font-size: max(13px, 2vw); }
 .tips-grid { grid-template-columns: 1fr; gap: 2vw; }
 .tip-item { padding: 2.5vw; }
 .tip-item h3 { font-size: max(16px, 2.8vw); }
 .tip-item p { font-size: max(14px, 2.2vw); }
 
 /* 页面头部移动端样式 */
 .header-content h1 { font-size: max(32px, 6vw); }
 .header-content h2 { font-size: max(18px, 3.5vw); }
 .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2vw; }
 .stat-item { padding: 2.5vw; }
 .stat-number { font-size: max(24px, 4vw); }
 .stat-label { font-size: max(12px, 2.2vw); }
 
 /* 文章列表移动端样式 */
 .articles-grid { grid-template-columns: 1fr; gap: 3vw; }
 .article-card { padding: 4vw; }
 .article-header { flex-direction: column; align-items: flex-start; gap: 1vw; }
 .article-category { font-size: max(11px, 2vw); padding: 0.5vw 1vw; }
 .article-date { font-size: max(12px, 2.2vw); }
 .article-card h2 { font-size: max(18px, 3.2vw); }
 .article-card p { font-size: max(14px, 2.2vw); }
 .tag { font-size: max(11px, 1.8vw); padding: 0.5vw 1vw; }
 .read-more { font-size: max(14px, 2.2vw); }
 
 /* 文章内容页面移动端样式 */
 .article-content .container { 
 max-width: 100%; 
 padding: 3vw; 
 margin: 1vw auto;
 border-radius: 15px;
 }
 .article-meta { flex-direction: column; gap: 1.5vw; }
 .article-category { 
 font-size: max(12px, 2.2vw); 
 padding: 1vw 2vw; 
 border-radius: 20px;
 }
 .article-date, .article-read-time { 
 font-size: max(12px, 2.2vw); 
 padding: 0.8vw 1.5vw;
 border-radius: 12px;
 }
 .article-content h1 { 
 font-size: max(20px, 3.8vw); 
 line-height: 1.2;
 }
 .article-summary { 
 font-size: max(14px, 2.4vw); 
 padding: 1.5vw;
 border-radius: 8px;
 }
 .article-body h2 { 
 font-size: max(18px, 3.2vw); 
 margin: 3vw 0 1.5vw; 
 padding-left: 1.5vw;
 }
 .article-body h2::before {
 width: 4px;
 height: 20px;
 }
 .article-body h3 { 
 font-size: max(16px, 2.8vw); 
 margin: 2.5vw 0 1.2vw; 
 padding-left: 1.2vw;
 }
 .article-body h3::before {
 font-size: 0.7em;
 }
 .article-body p { 
 font-size: max(14px, 2.2vw); 
 text-indent: 1.5em;
 }
 .article-body ul, .article-body ol {
 padding: 2vw 3vw;
 border-radius: 6px;
 }
 .article-body li { 
 font-size: max(16px, 2.5vw); 
 margin: 1vw 0;
 }
 .article-body ul li::before {
 left: -2vw;
 }
 .article-body ol li::before {
 left: -2vw;
 }
 .article-body strong {
 padding: 0.2vw 0.5vw;
 border-radius: 3px;
 }
 .article-body blockquote {
 padding: 2.5vw;
 border-radius: 6px;
 }
 .article-body blockquote::before {
 font-size: 3vw;
 top: -0.5vw;
 }
 .article-footer { 
 flex-direction: column; 
 text-align: center; 
 padding: 2.5vw;
 border-radius: 10px;
 }
 .article-actions { 
 flex-direction: column; 
 gap: 2vw; 
 width: 100%;
 }
 .article-actions .btn {
 padding: 1.2vw 3vw;
 font-size: max(14px, 2.2vw);
 border-radius: 20px;
 }
 
 .nav-toggle { display: inline-flex; }
 .site-nav { position: fixed; inset: 64px 0 auto 0; height: calc(100vh - 64px); background: rgba(255,255,255,.98); transform: translateY(-4%); opacity: 0; pointer-events: none; transition: opacity .2s ease; }
 .site-nav ul { flex-direction: column; padding: 1.25vw; gap: 0.75vw; }
 .site-nav.is-open { opacity: 1; pointer-events: auto; }
 
 /* 底部移动端响应式 */
 .footer-links { 
 gap: 1vw; 
 justify-content: center; 
 }
 
 .footer-links a { 
 font-size: max(12px, 3vw); 
 padding: 12px 16px; 
 min-height: 44px;
 min-width: 44px;
 }
 
 .footer-links .divider { 
 font-size: max(10px, 2.5vw); 
 margin: 0 0.3vw; 
 }
 
 .copyright-text { 
 font-size: max(12px, 3vw); 
 }
}

/* 额外断点微调 */
@media (max-width: 1280px) {
 .section { padding: 5.5vw 0; }
}
@media (max-width: 1024px) {
 .section h2 { font-size: 32px; }
}
@media (max-width: 768px) {
 .cards { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
 .btn { padding: 12px 16px; }
}

/* 隐私政策页面样式 */
.privacy-hero {
 background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
 color: white;
 padding: 4vw 0;
 margin-bottom: 2vw;
}

.privacy-header {
 text-align: center;
 max-width: 800px;
 margin: 0 auto;
}

.privacy-header h1 {
 font-size: 3.5vw;
 margin: 0 0 1.5vw;
 font-weight: 700;
 background: linear-gradient(45deg, #fff, #f0f8ff);
 -webkit-background-clip: text;
 -webkit-text-fill-color: transparent;
 background-clip: text;
}

.privacy-subtitle {
 font-size: 1.3vw;
 margin: 0 0 2vw;
 opacity: 0.9;
 line-height: 1.6;
}

.privacy-meta {
 display: flex;
 gap: 2vw;
 justify-content: center;
 font-size: 0.9vw;
 opacity: 0.8;
}

.privacy-meta span {
 background: rgba(255, 255, 255, 0.1);
 padding: 0.5vw 1vw;
 border-radius: 20px;
 backdrop-filter: blur(10px);
}

.privacy-content {
 padding: 2vw 0 4vw;
}

.privacy-toc {
 background: #f8fafc;
 border-radius: 12px;
 padding: 2vw;
 margin-bottom: 3vw;
 border-left: 4px solid var(--brand);
}

.privacy-toc h2 {
 font-size: 1.5vw;
 margin: 0 0 1.5vw;
 color: var(--text);
}

.privacy-toc ul {
 list-style: none;
 padding: 0;
 margin: 0;
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
 gap: 1vw;
}

.privacy-toc li {
 margin: 0;
}

.privacy-toc a {
 display: block;
 padding: 0.8vw 1.2vw;
 background: white;
 border-radius: 8px;
 color: var(--text);
 text-decoration: none;
 transition: all 0.3s ease;
 border: 1px solid var(--border);
}

.privacy-toc a:hover {
 background: var(--brand);
 color: white;
 transform: translateY(-2px);
 box-shadow: 0 4px 12px rgba(123, 92, 255, 0.3);
}

.privacy-sections {
 max-width: 900px;
 margin: 0 auto;
}

.privacy-section {
 margin-bottom: 4vw;
}

.privacy-section h2 {
 font-size: 2.2vw;
 margin: 0 0 2vw;
 color: var(--text);
 position: relative;
 padding-left: 1.5vw;
}

.privacy-section h2::before {
 content: '';
 position: absolute;
 left: 0;
 top: 50%;
 transform: translateY(-50%);
 width: 4px;
 height: 2vw;
 background: linear-gradient(135deg, var(--brand), var(--brand-2));
 border-radius: 2px;
}

.privacy-card {
 background: white;
 border-radius: 12px;
 padding: 2vw;
 margin-bottom: 1.5vw;
 box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
 border: 1px solid var(--border);
 transition: all 0.3s ease;
}

.privacy-card:hover {
 transform: translateY(-2px);
 box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.privacy-card h3 {
 font-size: 1.4vw;
 margin: 0 0 1vw;
 color: var(--text);
 font-weight: 600;
}

.privacy-card p {
 font-size: 1vw;
 line-height: 1.7;
 margin: 0 0 1.5vw;
 color: var(--muted);
}

.privacy-card ul {
 margin: 0;
 padding-left: 0;
 list-style: none;
}

.privacy-card li {
 font-size: 1vw;
 line-height: 1.6;
 margin: 0.8vw 0;
 padding-left: 1.5vw;
 position: relative;
 color: var(--muted);
}

.privacy-card li::before {
 content: '•';
 position: absolute;
 left: 0;
 color: var(--brand);
 font-weight: bold;
 font-size: 1.2em;
}

.privacy-card strong {
 color: var(--text);
 font-weight: 600;
}

.contact-info {
 display: grid;
 gap: 1.5vw;
 margin-top: 1.5vw;
}

.contact-item {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: 1vw 1.5vw;
 background: #f8fafc;
 border-radius: 8px;
 border: 1px solid var(--border);
}

.contact-item strong {
 color: var(--text);
 font-weight: 600;
}

.contact-item span {
 color: var(--brand);
 font-weight: 500;
}

/* 隐私页面移动端响应式 */
@media (max-width: 768px) {
 .privacy-header h1 {
 font-size: max(24px, 6vw);
 }
 
 .privacy-subtitle {
 font-size: max(16px, 3.5vw);
 }
 
 .privacy-meta {
 flex-direction: column;
 gap: 1vw;
 font-size: max(14px, 3vw);
 }
 
 .privacy-toc {
 padding: 3vw;
 }
 
 .privacy-toc h2 {
 font-size: max(18px, 4vw);
 }
 
 .privacy-toc ul {
 grid-template-columns: 1fr;
 gap: 2vw;
 }
 
 .privacy-toc a {
 padding: 2vw 3vw;
 font-size: max(14px, 3.5vw);
 }
 
 .privacy-section h2 {
 font-size: max(20px, 5vw);
 padding-left: 3vw;
 }
 
 .privacy-section h2::before {
 width: 6px;
 height: 4vw;
 }
 
 .privacy-card {
 padding: 3vw;
 margin-bottom: 3vw;
 }
 
 .privacy-card h3 {
 font-size: max(16px, 4vw);
 }
 
 .privacy-card p {
 font-size: max(14px, 3.5vw);
 }
 
 .privacy-card li {
 font-size: max(14px, 3.5vw);
 padding-left: 3vw;
 }
 
 .contact-item {
 flex-direction: column;
 align-items: flex-start;
 gap: 1vw;
 padding: 2vw 3vw;
 }
}