/* ============================================================
   YC-pro.css v1.0 — 阅丞集团科技风专业版
   设计语言：深色科技风 + 视频背景 + 玻璃态 + 科技蓝渐变
   参考：腾讯云关于我们页面
   ============================================================ */

:root {
    /* 主色调 - 科技蓝 */
    --primary: #00A4FF;
    --primary-600: #0088DD;
    --primary-700: #0066BB;
    --primary-light: #40C4FF;
    --cyan: #00E5FF;
    --purple: #7C4DFF;

    /* 渐变 */
    --grad-brand: linear-gradient(135deg, #00A4FF 0%, #00E5FF 100%);
    --grad-brand-2: linear-gradient(135deg, #7C4DFF 0%, #00A4FF 100%);
    --grad-text: linear-gradient(120deg, #00A4FF 0%, #00E5FF 100%);
    --grad-text-2: linear-gradient(120deg, #ffffff 0%, #b0d4ff 100%);

    /* 背景 - 深色系 */
    --bg-deep: #050A18;
    --bg-dark: #0A1128;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --bg-glass: rgba(10, 17, 40, 0.65);

    /* 文字 */
    --text-white: #FFFFFF;
    --text-primary: #E8F0FE;
    --text-secondary: #A8B8D8;
    --text-muted: #6B7FA3;
    --text-faint: #4A5A7A;

    /* 边框 */
    --border-light: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    --border-primary: rgba(0, 164, 255, 0.3);

    /* 阴影 */
    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 164, 255, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(0, 164, 255, 0.25);

    /* 圆角 */
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;

    /* 字体 */
    --font-main: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Segoe UI', Roboto, sans-serif;

    /* 动画 */
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { overflow-x: hidden; width: 100%; }
html { scroll-behavior: smooth; -webkit-tap-highlight-color: transparent; }

/* 全局禁止选择/复制（防止误操作） */
body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}
/* 输入框允许选择 */
input, textarea, select {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; height: auto; width: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 背景视频层 ===== */
.video-bg-container {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -2;
    overflow: hidden;
}
.video-bg-container video {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center;
}
/* 手机端视频适配 */
@media (max-width: 900px) {
    .video-bg-container video {
        object-position: center center;
        width: 100%;
        height: 100%;
    }
}
.video-bg-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    background:
        linear-gradient(180deg, rgba(5, 10, 24, 0.55) 0%, rgba(5, 10, 24, 0.45) 40%, rgba(5, 10, 24, 0.60) 100%),
        radial-gradient(ellipse at 20% 20%, rgba(0, 164, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(124, 77, 255, 0.04) 0%, transparent 50%);
}

/* ===== 光晕装饰 ===== */
.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
}
.glow-orb.o1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #00A4FF 0%, transparent 70%);
    top: -10%; left: -5%;
    animation: floatOrb1 20s ease-in-out infinite;
}
.glow-orb.o2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #7C4DFF 0%, transparent 70%);
    bottom: 10%; right: -5%;
    animation: floatOrb2 25s ease-in-out infinite;
}
@keyframes floatOrb1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(60px, 40px) scale(1.1); }
}
@keyframes floatOrb2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-50px, -30px) scale(1.15); }
}
@media (max-width: 900px) { .glow-orb { display: none; } }

/* ===== 头部导航 ===== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(5, 10, 24, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}
.site-header.scrolled {
    background: rgba(5, 10, 24, 0.85);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}
.header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}
.logo {
    height: 40px;
    width: auto;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
}
.brand-name {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    white-space: nowrap;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* PC导航 */
.pc-nav ul {
    display: flex;
    gap: 4px;
}
.pc-nav a {
    display: inline-block;
    padding: 8px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 999px;
    transition: var(--transition);
    position: relative;
}
.pc-nav a:hover {
    color: var(--text-white);
    background: rgba(0, 164, 255, 0.1);
}
.pc-nav a.active {
    color: var(--text-white);
    background: var(--grad-brand);
    box-shadow: 0 4px 20px rgba(0, 164, 255, 0.3);
}

/* 头部右侧操作 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.hdr-link {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: 999px;
    transition: var(--transition);
    white-space: nowrap;
}
.hdr-link:hover {
    color: var(--text-white);
    background: rgba(0, 164, 255, 0.1);
}
.icon-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    color: var(--primary);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}
.icon-btn:hover {
    background: var(--grad-brand);
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}
.mobile-menu-btn {
    display: none;
    width: 42px;
    height: 42px;
    font-size: 1.5rem;
    color: var(--primary);
    align-items: center;
    justify-content: center;
}

/* 移动端菜单 */
.mobile-nav {
    position: fixed;
    top: 0; right: 0;
    width: 300px;
    height: 100vh;
    background: rgba(10, 17, 40, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-left: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    transform: translateX(100%);
    visibility: hidden;
    opacity: 0;
    transition: transform 0.35s var(--ease), opacity 0.3s ease, visibility 0.3s;
    display: flex;
    flex-direction: column;
    padding: 28px 24px;
    overflow-y: auto;
}
.mobile-nav.active {
    transform: translateX(0);
    visibility: visible;
    opacity: 1;
}
body.menu-open { overflow: hidden; }
.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}
.mobile-brand {
    font-size: 1.35rem;
    font-weight: 800;
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.mobile-close {
    width: 40px;
    height: 40px;
    font-size: 1.5rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}
.mobile-close:hover { color: var(--text-white); background: var(--bg-card); }
.mobile-nav-links li { margin-bottom: 4px; }
.mobile-nav-links a {
    display: block;
    padding: 14px 16px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.mobile-nav-links a:hover {
    background: rgba(0, 164, 255, 0.1);
    color: var(--primary);
    padding-left: 22px;
}
.mobile-nav-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1999;
}
.mobile-nav-overlay.active { display: block; }

/* ===== HERO 区域 ===== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}
.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 164, 255, 0.1);
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00E676;
    box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.2);
    animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    color: var(--text-white);
    margin-bottom: 24px;
}
.hero-title .text-gradient {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-sub {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 620px;
    margin: 0 auto 40px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: 1.5px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--grad-brand);
    color: #fff;
    box-shadow: 0 4px 24px rgba(0, 164, 255, 0.35);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 36px rgba(0, 164, 255, 0.5);
    filter: brightness(1.1);
}
.btn-outline {
    background: transparent;
    border-color: var(--border-primary);
    color: var(--primary-light);
}
.btn-outline:hover {
    background: rgba(0, 164, 255, 0.1);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }
.btn-sm { padding: 10px 22px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* HERO统计 */
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 64px;
    flex-wrap: wrap;
    justify-content: center;
}
.hstat {
    text-align: left;
    padding-left: 18px;
    position: relative;
}
.hstat::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 6px;
    width: 3px;
    border-radius: 3px;
    background: var(--grad-brand);
}
.hstat .v {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -0.3px;
}
.hstat .l {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: scrollBounce 2s ease-in-out infinite;
}
.scroll-hint i { font-size: 1.2rem; }
@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== 通用区块 ===== */
.section {
    padding: 80px 0;
    position: relative;
}
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-header h2 {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-white);
    margin-bottom: 12px;
}
.section-header h2 .thin {
    font-weight: 300;
    color: var(--text-muted);
    font-size: 0.75em;
}
.section-desc {
    font-size: 1.08rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 卡片网格 ===== */
.card-grid { display: grid; gap: 24px; }
.three-cols { grid-template-columns: repeat(3, 1fr); }
.four-cols { grid-template-columns: repeat(4, 1fr); }
.two-cols { grid-template-columns: repeat(2, 1fr); }

/* 玻璃态卡片 */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-align: center;
}
.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad-brand);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}
.glass-card:hover::before { opacity: 1; }

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(0, 164, 255, 0.15), rgba(0, 229, 255, 0.1));
    font-size: 1.8rem;
    color: var(--primary);
}
.glass-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 10px;
    text-align: center;
}
.glass-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: center;
    margin-bottom: 0;
}
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.92rem;
    margin-top: 16px;
    transition: var(--transition);
}
.card-link i { transition: transform 0.2s; }
.card-link:hover i { transform: translateX(4px); }

/* ===== 合作伙伴Logo墙 ===== */
.logo-wall {
    padding: 36px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.02);
    overflow: hidden;
}
.logo-wall .container {
    display: flex;
    align-items: center;
    gap: 32px;
}
.logo-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
    letter-spacing: 1px;
    text-transform: uppercase;
}
.logo-track {
    flex: 1;
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.logo-row {
    display: flex;
    align-items: center;
    gap: 56px;
    padding-right: 56px;
    width: max-content;
    animation: logoMarquee 36s linear infinite;
}
@keyframes logoMarquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}
.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    opacity: 0.92;
    transition: var(--transition);
}
.logo-item:hover { opacity: 1; transform: translateY(-3px); }
.logo-item .li-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 56px;
    width: 120px;
    padding: 8px 12px;
    background: #FFFFFF;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    flex-shrink: 0;
}
.logo-item .li-logo svg,
.logo-item .li-logo img {
    max-height: 32px;
    max-width: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
    margin: auto;
    align-self: center;
}
.logo-item .li-name {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

/* ===== 实力展示卡片 ===== */
.strength-wrap {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.strength-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    backdrop-filter: blur(15px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: block;
}
.strength-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-glow);
    background: var(--bg-card-hover);
}
.strength-card .si {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0, 164, 255, 0.15), rgba(0, 229, 255, 0.1));
}
.strength-card .si svg { width: 28px; height: 28px; }
.strength-card .sv {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -0.3px;
}
.strength-card .sv small {
    font-size: 0.82rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 4px;
}
.strength-card .sl {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-top: 6px;
    line-height: 1.5;
}

/* ===== 域名查询 ===== */
.domain-search-box { max-width: 680px; margin: 0 auto; }
.domain-input-group {
    display: flex;
    align-items: stretch;
    background: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(20px);
    transition: var(--transition);
}
.domain-input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 164, 255, 0.15);
}
.domain-input {
    flex: 1;
    border: none;
    padding: 18px 22px;
    font-size: 1.05rem;
    font-family: var(--font-main);
    outline: none;
    background: transparent;
    min-width: 0;
    color: var(--text-white);
}
.domain-input::placeholder { color: var(--text-faint); }
.domain-suffix-select {
    border: none;
    border-left: 1px solid var(--border-light);
    padding: 0 16px;
    font-size: 0.98rem;
    font-family: var(--font-main);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.03);
    outline: none;
    cursor: pointer;
    min-width: 120px;
}
.domain-suffix-select option { background: var(--bg-dark); color: var(--text-primary); }
.domain-search-btn {
    border-radius: 0 !important;
    padding: 0 28px;
    flex-shrink: 0;
}
.domain-result {
    margin-top: 20px;
    padding: 22px 26px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    backdrop-filter: blur(15px);
    animation: fadeInUp 0.3s ease;
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.domain-result.available {
    background: rgba(0, 230, 118, 0.08);
    border-color: rgba(0, 230, 118, 0.3);
}
.domain-result.unavailable {
    background: rgba(255, 82, 82, 0.08);
    border-color: rgba(255, 82, 82, 0.3);
}
.domain-result .domain-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-white);
    word-break: break-all;
}
.domain-result .domain-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    margin: 8px 0;
}
.domain-result .action-row {
    margin-top: 14px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.domain-result .badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 10px;
}
.badge-ok { background: rgba(0, 230, 118, 0.15); color: #00E676; }
.badge-no { background: rgba(255, 82, 82, 0.15); color: #FF5252; }
.domain-hint {
    text-align: center;
    margin-top: 16px;
    color: var(--text-muted);
    font-size: 0.86rem;
}
.domain-hint i { margin-right: 4px; }

/* ===== 大CTA横幅 ===== */
.cta-banner {
    background: var(--grad-brand-2);
    border-radius: var(--radius-xl);
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.cta-banner::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    top: -150px;
    right: -100px;
}
.cta-banner::after {
    content: '';
    position: absolute;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    bottom: -80px;
    left: 10%;
}
.cta-banner h3 {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}
.cta-banner p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
}
.cta-banner .btn {
    background: #fff;
    color: var(--primary-700);
    position: relative;
    z-index: 1;
}
.cta-banner .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

/* ===== 页脚 ===== */
.site-footer {
    background: rgba(5, 10, 24, 0.9);
    border-top: 1px solid var(--border-light);
    padding: 56px 0 32px;
    margin-top: 40px;
    backdrop-filter: blur(20px);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1fr 2fr 1.5fr;
    align-items: center;
    gap: 32px;
    margin-bottom: 32px;
}
.footer-about { display: flex; flex-direction: column; gap: 12px; }
.footer-about img {
    width: 180px;
    height: auto;
    max-width: none;
    border-radius: 8px;
    display: block;
}
.footer-about p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin: 0;
}
.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}
.footer-links a {
    color: var(--text-secondary);
    font-size: 0.92rem;
    transition: var(--transition);
}
.footer-links a:hover { color: var(--primary); }
.footer-legal {
    text-align: right;
    color: var(--text-muted);
    font-size: 0.86rem;
}
.footer-legal p { margin: 4px 0; }
.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 24px;
    text-align: center;
    color: var(--text-faint);
    font-size: 0.82rem;
}

/* ===== 客服悬浮球 ===== */
.float-customer {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 56px;
    height: 56px;
    background: var(--grad-brand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.4rem;
    box-shadow: 0 6px 24px rgba(0, 164, 255, 0.4);
    transition: var(--transition);
    z-index: 900;
    text-decoration: none;
}
.float-customer:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(0, 164, 255, 0.6);
}

/* ===== 模态框 ===== */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    z-index: 3000;
}
.modal.active { display: flex; }
.modal-content {
    background: var(--bg-dark);
    border: 1px solid var(--border-medium);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    max-width: 360px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-lg);
}
.modal-close {
    position: absolute;
    top: 16px; right: 18px;
    width: 36px;
    height: 36px;
    font-size: 1.3rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}
.modal-close:hover { color: var(--text-white); background: var(--bg-card); }
.modal-content h3 {
    font-size: 1.3rem;
    color: var(--text-white);
    margin-bottom: 16px;
}
.modal-content img {
    max-width: 180px;
    margin: 16px auto;
    border-radius: 12px;
}
.modal-content p { color: var(--text-secondary); font-size: 0.92rem; }
.modal-content a { color: var(--primary); }

/* ===== Cookie弹窗 ===== */
.cookie-pop {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    max-width: 440px;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    z-index: 950;
    display: none;
    box-shadow: var(--shadow-lg);
}
.cookie-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}
.cookie-content p {
    flex: 1;
    font-size: 0.86rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}
.cookie-content a { color: var(--primary); }
.cookie-btns { display: flex; gap: 8px; }
.cookie-close {
    font-size: 1rem;
    color: var(--text-muted);
    padding: 0 4px;
}

/* ===== 滚动动画 ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.animate-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
}
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===== 招聘页专属 ===== */
.job-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    backdrop-filter: blur(20px);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}
.job-card:hover {
    border-color: var(--border-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}
.job-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.job-head h3 {
    font-size: 1.5rem;
    color: var(--text-white);
    margin: 0;
}
.job-badge {
    display: inline-block;
    padding: 5px 16px;
    border-radius: 20px;
    background: rgba(0, 164, 255, 0.12);
    border: 1px solid var(--border-primary);
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.82rem;
    white-space: nowrap;
}
.job-salary {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-top: 8px;
}
.job-salary span {
    font-size: 0.88rem;
    font-weight: 400;
    color: var(--text-muted);
}
.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0 22px;
}
.job-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-light);
    padding: 6px 14px;
    border-radius: 10px;
}
.job-meta i { color: var(--primary); }
.job-block { margin-bottom: 18px; }
.job-block h4 {
    font-size: 1.05rem;
    color: var(--text-white);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.job-block h4 i { color: var(--primary); font-size: 0.95rem; }
.job-block ul { padding-left: 20px; }
.job-block li {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 4px;
}

.welfare-card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 30px 24px;
    text-align: center;
    backdrop-filter: blur(15px);
    transition: var(--transition);
}
.welfare-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-glow);
}
.welfare-card .wi {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(0, 164, 255, 0.15), rgba(0, 229, 255, 0.1));
}
.welfare-card .wi i { font-size: 1.6rem; color: var(--primary); }
.welfare-card h3 {
    font-size: 1.15rem;
    color: var(--text-white);
    margin-bottom: 12px;
}
.welfare-card ul {
    list-style: none;
    text-align: left;
    padding: 0;
}
.welfare-card li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 6px 0;
    border-bottom: 1px dashed var(--border-light);
    display: flex;
    gap: 8px;
    align-items: flex-start;
}
.welfare-card li:last-child { border-bottom: none; }
.welfare-card li i { color: var(--primary); font-size: 0.75rem; margin-top: 5px; flex-shrink: 0; }

/* ===== 关于我们页面专属 ===== */
.about-hero {
    min-height: 92vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 160px 24px 100px;
    text-align: center;
    position: relative;
}
.about-hero h1 {
    font-size: 3.6rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -1px;
    margin-bottom: 20px;
    line-height: 1.2;
}
.about-hero .slogan {
    font-size: 1.4rem;
    color: var(--primary-light);
    font-weight: 300;
    letter-spacing: 4px;
    margin-bottom: 24px;
}
.about-hero p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.9;
}

.about-section {
    padding: 80px 0;
}
.about-section h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-white);
    text-align: center;
    margin-bottom: 16px;
}
.about-section .section-sub {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 48px;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--cyan), transparent);
}
.timeline-item {
    position: relative;
    margin-bottom: 36px;
    padding: 24px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    backdrop-filter: blur(15px);
    transition: var(--transition);
}
.timeline-item:hover {
    border-color: var(--border-primary);
    transform: translateX(6px);
}
.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 28px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--grad-brand);
    box-shadow: 0 0 0 4px rgba(0, 164, 255, 0.2);
}
.timeline-item .year {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
}
.timeline-item h4 {
    font-size: 1.1rem;
    color: var(--text-white);
    margin-bottom: 8px;
}
.timeline-item p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    margin: 0;
    line-height: 1.7;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.value-card {
    text-align: center;
    padding: 40px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(15px);
    transition: var(--transition);
}
.value-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-glow);
}
.value-card .vc-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: var(--grad-brand);
    font-size: 2rem;
    color: #fff;
    box-shadow: 0 8px 28px rgba(0, 164, 255, 0.35);
}
.value-card h3 {
    font-size: 1.3rem;
    color: var(--text-white);
    margin-bottom: 10px;
}
.value-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin: 0;
}

/* ===== 响应式 - 平板 ===== */
@media (max-width: 1024px) {
    .hero-title { font-size: 3.2rem; }
    .about-hero h1 { font-size: 2.8rem; }
    .strength-wrap { grid-template-columns: repeat(2, 1fr); }
    .four-cols { grid-template-columns: repeat(2, 1fr); }
    .value-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 响应式 - 手机 ===== */
@media (max-width: 900px) {
    .pc-nav { display: none; }
    .pc-only { display: none !important; }
    .mobile-menu-btn { display: flex; }
    .hero-badge { display: none; }

    .header-flex { height: 64px; gap: 12px; }
    .brand-name { font-size: 1.2rem; }
    .logo { height: 32px; }
    .icon-btn { width: 38px; height: 38px; font-size: 1rem; }

    .hero-section {
        min-height: 90vh;
        padding: 100px 20px 60px;
    }
    .hero-title { font-size: 2.4rem; letter-spacing: -0.5px; }
    .hero-sub { font-size: 1.02rem; }
    .hero-stats { gap: 24px; margin-top: 48px; }
    .hstat .v { font-size: 1.3rem; }
    .hstat .l { font-size: 0.78rem; }

    .section { padding: 56px 0; }
    .section-header h2 { font-size: 1.8rem; }
    .section-desc { font-size: 0.98rem; }

    .three-cols, .four-cols, .two-cols { grid-template-columns: 1fr; }
    .strength-wrap { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .value-grid { grid-template-columns: 1fr; }

    .glass-card { padding: 28px 22px; }
    .card-icon { width: 56px; height: 56px; font-size: 1.5rem; }

    .logo-wall .container { flex-wrap: wrap; gap: 16px; }
    .logo-label { width: 100%; text-align: center; }
    .logo-row { gap: 36px; padding-right: 36px; }

    .domain-input-group { flex-direction: column; border-radius: var(--radius-md); }
    .domain-input { padding: 16px 18px; font-size: 1rem; }
    .domain-suffix-select {
        border-left: none;
        border-top: 1px solid var(--border-light);
        padding: 14px 18px;
        width: 100%;
    }
    .domain-search-btn {
        border-radius: 0 0 var(--radius-md) var(--radius-md) !important;
        padding: 16px;
        width: 100%;
    }

    .cta-banner { padding: 44px 28px; border-radius: var(--radius-lg); }
    .cta-banner h3 { font-size: 1.5rem; }
    .cta-banner p { font-size: 1rem; }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 24px;
    }
    .footer-about { align-items: center; }
    .footer-links { justify-content: center; }
    .footer-legal { text-align: center; }

    .float-customer { width: 50px; height: 50px; font-size: 1.2rem; bottom: 20px; right: 20px; }

    .job-card { padding: 28px 22px; }
    .job-head h3 { font-size: 1.25rem; }
    .job-salary { font-size: 1.05rem; }

    .about-hero {
        min-height: 85vh;
        padding: 120px 20px 70px;
    }
    .about-hero h1 { font-size: 2.2rem; }
    .about-hero .slogan { font-size: 1.1rem; letter-spacing: 2px; }
    .about-hero p { font-size: 1rem; }

    .timeline { padding-left: 32px; }
    .timeline-item { padding: 20px 22px; }
    .timeline-item::before { left: -28px; width: 12px; height: 12px; }

    .btn { padding: 12px 26px; font-size: 0.95rem; }
    .btn-lg { padding: 14px 32px; font-size: 1rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { gap: 18px; }
    .hstat { padding-left: 14px; }

    .strength-wrap { grid-template-columns: 1fr; }

    .section-header h2 { font-size: 1.6rem; }
    .section { padding: 44px 0; }

    .mobile-nav { width: 100%; }

    .cookie-pop { left: 12px; right: 12px; bottom: 12px; padding: 14px 16px; }
}

/* ===== 浅色主题 ===== */
html.light {
    --primary: #0088DD;
    --primary-600: #0066BB;
    --primary-700: #004499;
    --primary-light: #00A4FF;
    --cyan: #00B8D4;
    --purple: #5C3DFF;

    --grad-brand: linear-gradient(135deg, #0088DD 0%, #00B8D4 100%);
    --grad-brand-2: linear-gradient(135deg, #5C3DFF 0%, #0088DD 100%);
    --grad-text: linear-gradient(120deg, #0066BB 0%, #0088DD 100%);

    --bg-deep: #F0F4FA;
    --bg-dark: #FFFFFF;
    --bg-card: rgba(255, 255, 255, 0.96);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --bg-glass: rgba(255, 255, 255, 0.97);

    --text-white: #0A1128;
    --text-primary: #0F1A33;
    --text-secondary: #2A3A5A;
    --text-muted: #4A5A7A;
    --text-faint: #6B7FA3;

    --border-light: rgba(0, 50, 120, 0.1);
    --border-medium: rgba(0, 50, 120, 0.15);
    --border-primary: rgba(0, 136, 221, 0.35);

    --shadow-sm: 0 2px 12px rgba(0, 30, 80, 0.06);
    --shadow-md: 0 8px 32px rgba(0, 30, 80, 0.1);
    --shadow-lg: 0 16px 48px rgba(0, 30, 80, 0.14);
    --shadow-glow: 0 0 40px rgba(0, 136, 221, 0.12);
    --shadow-glow-strong: 0 0 60px rgba(0, 136, 221, 0.2);
}

/* 浅色主题 - 背景视频遮罩调薄（清晰可见） */
html.light .video-bg-overlay {
    background:
        linear-gradient(180deg, rgba(240, 244, 250, 0.30) 0%, rgba(240, 244, 250, 0.25) 40%, rgba(240, 244, 250, 0.35) 100%),
        radial-gradient(ellipse at 20% 20%, rgba(0, 136, 221, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(92, 61, 255, 0.02) 0%, transparent 50%);
}

/* 浅色主题 - 头部背景 */
html.light .site-header {
    background: rgba(255, 255, 255, 0.82);
}
html.light .site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 24px rgba(0, 30, 80, 0.08);
}

/* 浅色主题 - 移动端菜单 */
html.light .mobile-nav {
    background: rgba(255, 255, 255, 0.97);
}

/* 浅色主题 - 导航链接hover */
html.light .pc-nav a:hover {
    background: rgba(0, 136, 221, 0.08);
}
html.light .pc-nav a.active {
    color: #FFFFFF !important;
}
html.light .hdr-link:hover {
    background: rgba(0, 136, 221, 0.08);
}

/* 浅色主题 - 按钮outline */
html.light .btn-outline {
    color: var(--primary);
}
html.light .btn-outline:hover {
    background: rgba(0, 136, 221, 0.08);
}

/* 浅色主题 - Logo墙背景 */
html.light .logo-wall {
    background: rgba(255, 255, 255, 0.6);
}
html.light .logo-item .li-logo {
    background: #FFFFFF;
    box-shadow: 0 2px 8px rgba(0, 30, 80, 0.08);
}

/* 浅色主题 - 域名查询 */
html.light .domain-input {
    color: var(--text-primary);
}
html.light .domain-suffix-select {
    background: rgba(0, 50, 120, 0.03);
    color: var(--text-secondary);
}
html.light .domain-suffix-select option {
    background: #FFFFFF;
    color: var(--text-primary);
}

/* 浅色主题 - 页脚 */
html.light .site-footer {
    background: rgba(255, 255, 255, 0.9);
}

/* 浅色主题 - 模态框 */
html.light .modal-content {
    background: #FFFFFF;
}

/* 浅色主题 - Cookie弹窗 */
html.light .cookie-pop {
    background: rgba(255, 255, 255, 0.95);
}

/* 浅色主题 - 岗位卡片meta */
html.light .job-meta span {
    background: rgba(0, 50, 120, 0.04);
}

/* 浅色主题 - 福利卡片li */
html.light .welfare-card li {
    border-bottom-color: rgba(0, 50, 120, 0.08);
}

/* 浅色主题 - 时间轴 */
html.light .timeline::before {
    background: linear-gradient(180deg, var(--primary), var(--cyan), rgba(0, 136, 221, 0.2));
}

/* 浅色主题 - 图标按钮hover文字保持白色 */
html.light .icon-btn:hover {
    color: #fff;
}

/* ===== 减少动画（无障碍） ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================================
   手机端适配补充（v6.1 修复）
   ============================================================ */

/* 全局防横向溢出 */
html, body {
    overflow-x: hidden;
    max-width: 100%;
}

/* 900px 以下补充 */
@media (max-width: 900px) {
    /* container 收紧内边距 */
    .container { padding: 0 16px; }

    /* YOS 工作原理 5列 → 1列 */
    .yos-steps {
        grid-template-columns: 1fr !important;
        gap: 14px !important;
    }
    .yos-steps .strength-card {
        flex-direction: row !important;
        text-align: left !important;
        align-items: center !important;
        gap: 14px;
    }
    .yos-steps .strength-card > div:first-child {
        margin-bottom: 0 !important;
        flex-shrink: 0;
    }
    .yos-steps .strength-card h4 {
        text-align: left !important;
        margin: 0 0 4px 0 !important;
    }
    .yos-steps .strength-card p {
        text-align: left !important;
    }

    /* essay 文章卡片内边距收紧 */
    .essay-article {
        padding: 32px 20px !important;
    }

    /* chen 证书模态框 */
    .cert-modal .modal-content {
        max-width: 92vw !important;
        padding: 16px !important;
        margin: 10% auto !important;
    }

    /* ZN 招聘页 CTA 长文字按钮 */
    .cta-banner .btn {
        word-break: break-all;
        line-height: 1.5;
    }

    /* job 卡片在小屏进一步收紧 */
    .job-card {
        padding: 22px 18px !important;
    }
    .job-head h3 {
        font-size: 1.2rem !important;
    }
    .job-salary {
        font-size: 1rem !important;
    }
    .job-salary span {
        display: block;
        font-size: 0.85rem;
        margin-top: 2px;
    }
    .job-block ul {
        padding-left: 18px;
    }
    .job-block li {
        font-size: 0.92rem;
        line-height: 1.7;
    }

    /* 合作伙伴 logo 墙防止溢出 */
    .logo-wall {
        overflow: hidden;
    }
    .logo-track {
        max-width: 100%;
    }

    /* 域名查询输入框确保不溢出 */
    .domain-search-box {
        width: 100%;
        box-sizing: border-box;
    }
    .domain-input-group {
        width: 100%;
        box-sizing: border-box;
    }

    /* hero 统计数字防止溢出 */
    .hero-stats {
        gap: 20px !important;
    }
    .hstat {
        min-width: 0;
    }
    .hstat .v {
        font-size: 1.15rem !important;
        word-break: break-word;
    }

    /* 所有表格防溢出 */
    .styled-table, .cart-table, .admin-table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* 按钮文字换行 */
    .btn {
        word-break: break-word;
    }

    /* 合规信息栏 */
    .compliance-bar {
        gap: 10px !important;
        font-size: 0.8rem !important;
    }
    .compliance-bar a {
        font-size: 0.8rem !important;
    }
}

/* 480px 以下超小屏补充 */
@media (max-width: 480px) {
    .container { padding: 0 12px; }

    .hero-title { font-size: 1.8rem !important; }
    .hero-sub { font-size: 0.95rem !important; }

    .section-header h2 { font-size: 1.45rem !important; }

    .glass-card { padding: 22px 18px !important; }

    /* essay 文章进一步收紧 */
    .essay-article {
        padding: 24px 16px !important;
    }
    .essay-article h1 {
        font-size: 1.4rem !important;
    }
    .essay-article > div {
        font-size: 0.95rem !important;
        line-height: 2 !important;
    }

    /* YOS steps 超小屏保持1列 */
    .yos-steps .strength-card {
        padding: 16px !important;
    }

    /* job 卡片 */
    .job-card { padding: 18px 14px !important; }
    .job-meta span {
        font-size: 0.78rem !important;
        padding: 4px 10px !important;
    }

    /* 按钮 */
    .btn { padding: 10px 20px !important; font-size: 0.9rem !important; }
    .btn-lg { padding: 12px 24px !important; font-size: 0.95rem !important; }

    /* CTA banner */
    .cta-banner { padding: 32px 20px !important; }
    .cta-banner h3 { font-size: 1.3rem !important; }
}