/* ============================================================
 * 智能简历 v3 · 发布会风格深色主题
 * ============================================================ */

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

:root {
    --bg-0: #05061a;
    --bg-1: #0a0d26;
    --bg-2: #121635;
    --fg-0: #f5f7ff;
    --fg-1: #c9d3f5;
    --fg-2: #8ea2d8;
    --fg-3: #5b6a8f;
    --accent: #3b82f6;
    --accent-2: #7c3aed;
    --accent-3: #06b6d4;
    --border: rgba(120, 160, 255, 0.12);
    --border-strong: rgba(120, 160, 255, 0.22);
    --card-bg: linear-gradient(145deg, rgba(20, 28, 64, 0.75), rgba(12, 16, 42, 0.82));
    --card-border: rgba(120, 160, 255, 0.14);
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
    color: var(--fg-0);
    background: var(--bg-0);
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

/* ------------ 背景层 ------------ */
.bg-layer {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background:
        radial-gradient(ellipse at top left, rgba(59, 130, 246, 0.18), transparent 55%),
        radial-gradient(ellipse at bottom right, rgba(124, 58, 237, 0.2), transparent 55%),
        linear-gradient(180deg, #07091a 0%, #050617 60%, #03040e 100%);
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(110px);
    opacity: 0.45;
    animation: float 22s ease-in-out infinite;
}

.glow-1 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, #3b82f6, transparent 70%);
    top: -180px; left: -100px;
}
.glow-2 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, #7c3aed, transparent 70%);
    bottom: -200px; right: -100px;
    animation-delay: -8s;
}
.glow-3 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #06b6d4, transparent 70%);
    bottom: 10%; left: 35%;
    animation-delay: -14s;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(40px, -40px) scale(1.06); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(100, 150, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(100, 150, 255, 0.05) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
}

/* ------------ 布局 ------------ */
.app {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    max-width: 2000px;
    margin: 0 auto;
    padding: 16px;
    gap: 16px;
}

/* ============================================================
 * 左侧侧边栏
 * ============================================================ */
.sidebar {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, rgba(15, 22, 50, 0.75), rgba(10, 14, 35, 0.85));
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px 18px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.brand-chip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.brand-logo {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.brand-name { font-size: 17px; font-weight: 700; letter-spacing: 0.5px; }
.brand-sub { font-size: 10.5px; color: var(--fg-2); letter-spacing: 1.2px; text-transform: uppercase; margin-top: 2px; }

/* 导航 */
.nav-list {
    flex: 1;
    margin-top: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 3px;
    scrollbar-width: thin;
}
.nav-list::-webkit-scrollbar { width: 4px; }
.nav-list::-webkit-scrollbar-thumb { background: rgba(120, 160, 255, 0.2); border-radius: 2px; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 12px;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid transparent;
    color: var(--fg-1);
    font-size: 13px;
    font-weight: 500;
    position: relative;
    transition: all 0.2s ease;
}
.nav-item:hover {
    background: rgba(59, 130, 246, 0.08);
    color: var(--fg-0);
    transform: translateX(2px);
}
.nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.25), rgba(124, 58, 237, 0.08));
    color: #fff;
    border-color: var(--border-strong);
    box-shadow: 0 4px 18px rgba(59, 130, 246, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.nav-item.active::before {
    content: "";
    position: absolute;
    left: -1px; top: 12px; bottom: 12px;
    width: 3px;
    border-radius: 2px;
    background: linear-gradient(180deg, #3b82f6, #7c3aed);
    box-shadow: 0 0 10px #3b82f6;
}
.nav-icon { opacity: 0.85; font-size: 14px; }
.nav-label { flex: 1; }
.nav-index { font-size: 10px; color: var(--fg-3); font-family: "SF Mono", Menlo, monospace; letter-spacing: 1px; }
.nav-item.active .nav-index { color: #9cb9ff; }

.sidebar-footer {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 12px;
    color: var(--fg-2);
}
.footer-hint {
    margin-top: 6px;
    font-size: 10.5px;
    color: var(--fg-3);
    letter-spacing: 0.3px;
    line-height: 1.6;
}

/* ============================================================
 * 主舞台：滚动屏
 * ============================================================ */
.stage {
    position: relative;
    overflow-y: scroll;
    overflow-x: hidden;
    scroll-behavior: smooth;
    scroll-snap-type: y mandatory;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: linear-gradient(180deg, rgba(10, 14, 35, 0.4), rgba(5, 7, 22, 0.5));
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* 隐藏滚动条但保留功能 */
.stage::-webkit-scrollbar { width: 6px; }
.stage::-webkit-scrollbar-thumb { background: rgba(120, 160, 255, 0.15); border-radius: 3px; }

.screen {
    min-height: 100%;
    scroll-snap-align: start;
    padding: 70px 72px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.screen-header {
    margin-bottom: 40px;
}
.chapter-num {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 2.5px;
    color: var(--fg-3);
    margin-bottom: 14px;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.05);
}
.screen-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 1px;
    margin-bottom: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #a8c5ff 70%, #5b9bff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    animation: fadeUp 0.7s ease-out backwards;
}
.screen-sub {
    font-size: 15px;
    color: var(--fg-2);
    letter-spacing: 0.5px;
    animation: fadeUp 0.8s ease-out 0.08s backwards;
}

.screen-body {
    flex: 1;
    animation: fadeUp 0.9s ease-out 0.12s backwards;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
 * Screen 1: Hero 首页
 * ============================================================ */
.screen-hero {
    justify-content: center;
    align-items: center;
    text-align: left;
    padding: 60px 72px;
}

.hero-content {
    max-width: 920px;
    width: 100%;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.06);
    color: var(--fg-1);
    font-size: 12.5px;
    letter-spacing: 1.5px;
    margin-bottom: 28px;
    animation: fadeUp 0.6s ease-out;
}

.pulse-dot {
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.55; }
}

.hero-title {
    font-size: 78px;
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: 2px;
    margin-bottom: 24px;
    animation: fadeUp 0.8s ease-out 0.06s backwards;
}

.hero-title .line-1,
.hero-title .line-2 {
    display: block;
}
.hero-title .line-1 {
    background: linear-gradient(180deg, #ffffff, #cbd5ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.hero-title .line-2 {
    background: linear-gradient(180deg, #ffffff, #8bb4ff 65%, #4e8bff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.hero-title .accent {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6, #7c3aed 55%, #06b6d4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    padding: 0 8px;
    position: relative;
}

.hero-desc {
    font-size: 17px;
    line-height: 1.75;
    color: var(--fg-1);
    max-width: 760px;
    margin-bottom: 40px;
    animation: fadeUp 0.9s ease-out 0.1s backwards;
}

/* Hero 数字指标 */
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
    animation: fadeUp 1s ease-out 0.15s backwards;
}

.metric {
    padding: 22px 20px;
    border-radius: 16px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.metric:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.2);
}
.metric::after {
    content: "";
    position: absolute;
    top: 0; right: 0; width: 90px; height: 90px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 70%);
    pointer-events: none;
}
.metric-num {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(180deg, #8bb4ff, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.metric-num span {
    font-size: 15px;
    margin-left: 3px;
    color: var(--fg-2);
    -webkit-text-fill-color: var(--fg-2);
    font-weight: 500;
}
.metric-label {
    font-size: 12px;
    color: var(--fg-2);
    margin-top: 8px;
    letter-spacing: 0.5px;
}

/* Hero 标签 */
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 40px;
    animation: fadeUp 1s ease-out 0.2s backwards;
}
.hero-tag {
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: rgba(59, 130, 246, 0.05);
    color: var(--fg-1);
    font-size: 12.5px;
    letter-spacing: 0.3px;
    transition: all 0.2s ease;
}
.hero-tag:hover {
    background: rgba(59, 130, 246, 0.18);
    border-color: rgba(120, 160, 255, 0.35);
    color: #fff;
    transform: translateY(-1px);
}

/* 按钮 */
.hero-cta {
    display: flex;
    gap: 14px;
    animation: fadeUp 1s ease-out 0.25s backwards;
}
.btn {
    padding: 13px 26px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    font-family: inherit;
}
.btn-primary {
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: #fff;
    box-shadow: 0 8px 26px rgba(59, 130, 246, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 36px rgba(59, 130, 246, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.btn-ghost {
    background: transparent;
    color: var(--fg-1);
    border: 1px solid var(--border-strong);
}
.btn-ghost:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(120, 160, 255, 0.35);
    color: #fff;
}

.hero-scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--fg-3);
    letter-spacing: 2px;
    text-transform: uppercase;
}
.scroll-arrow {
    width: 18px;
    height: 30px;
    border: 2px solid var(--fg-3);
    border-radius: 12px;
    position: relative;
}
.scroll-arrow::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 6px;
    background: var(--fg-2);
    border-radius: 2px;
    animation: scroll-hint 1.8s ease-in-out infinite;
}
@keyframes scroll-hint {
    0% { transform: translate(-50%, 0); opacity: 1; }
    80% { transform: translate(-50%, 12px); opacity: 0; }
    100% { transform: translate(-50%, 0); opacity: 0; }
}

/* ============================================================
 * 通用：卡片网格
 * ============================================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
}

.card {
    padding: 24px 24px 22px;
    border-radius: 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s;
}
.card:hover {
    transform: translateY(-3px);
    border-color: rgba(120, 160, 255, 0.32);
    box-shadow: 0 16px 40px rgba(59, 130, 246, 0.15);
}
.card::after {
    content: "";
    position: absolute;
    top: 0; right: 0; width: 120px; height: 120px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.2), transparent 70%);
    pointer-events: none;
    opacity: 0.9;
}

.case-card.card-expand .card-close {
    display: flex;
}

.card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 14px;
}
.card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--fg-0);
    line-height: 1.4;
    max-width: 75%;
}
.card-tag {
    font-size: 10.5px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.1);
    color: #9cb9ff;
    border: 1px solid var(--border-strong);
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.card-text {
    font-size: 13.5px;
    color: var(--fg-1);
    line-height: 1.75;
    margin-bottom: 14px;
}

.card-list {
    list-style: none;
    padding: 0;
    margin: 0 0 14px;
}
.card-list li {
    position: relative;
    padding: 6px 0 6px 20px;
    font-size: 13px;
    color: var(--fg-1);
    line-height: 1.6;
}
.card-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 13px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.card-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}
.card-metric {
    font-size: 12px;
    padding: 5px 10px;
    border-radius: 8px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--border);
    color: #9cb9ff;
    font-weight: 600;
    letter-spacing: 0.2px;
}

/* ============================================================
 * Screen 2: About 关于
 * ============================================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    gap: 18px;
    margin-bottom: 28px;
}
.about-list {
    list-style: none;
    padding: 0;
}
.about-list li {
    padding: 6px 0;
    font-size: 13.5px;
    color: var(--fg-1);
    line-height: 1.65;
}
.about-list li strong {
    color: var(--fg-0);
    font-weight: 600;
    margin-right: 8px;
}

.path-timeline {
    margin-top: 20px;
    padding: 24px;
    border-radius: 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}
.path-timeline h4 {
    font-size: 15px;
    margin-bottom: 18px;
    color: var(--fg-0);
    letter-spacing: 0.5px;
}
.path-item {
    display: flex;
    align-items: baseline;
    gap: 22px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    position: relative;
    padding-left: 30px;
}
.path-item:last-child { border-bottom: none; }
.path-item::before {
    content: "";
    position: absolute;
    left: 8px; top: 18px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}
.path-role {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--fg-0);
    min-width: 140px;
}
.path-scope {
    font-size: 12.5px;
    color: var(--fg-2);
    flex: 1;
}

/* ============================================================
 * Screen 3: Experience 公司履历（时间线）
 * ============================================================ */
.exp-timeline {
    position: relative;
    padding-left: 40px;
    max-width: 920px;
}
.exp-timeline::before {
    content: "";
    position: absolute;
    left: 12px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.5), rgba(124, 58, 237, 0.1));
    border-radius: 1px;
}

.exp-entry {
    position: relative;
    padding: 0 0 32px;
}
.exp-entry::before {
    content: "";
    position: absolute;
    left: -34px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-1);
    border: 2px solid #3b82f6;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12), 0 0 12px rgba(59, 130, 246, 0.5);
}

.exp-company {
    font-size: 16px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 4px;
}
.exp-period {
    font-size: 12px;
    color: var(--fg-2);
    letter-spacing: 0.5px;
    margin-bottom: 14px;
}

.exp-role {
    padding: 16px 20px;
    border-radius: 14px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    margin-bottom: 10px;
    position: relative;
    overflow: hidden;
}
.exp-role::after {
    content: "";
    position: absolute;
    top: 0; right: 0; width: 100px; height: 100px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 70%);
    pointer-events: none;
}
.exp-role-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}
.exp-role-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}
.exp-tag {
    font-size: 10.5px;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.08);
    color: #9cb9ff;
    border: 1px solid var(--border);
    letter-spacing: 0.3px;
}

/* ============================================================
 * Screen 5: 客户案例 - 项目卡片
 * ============================================================ */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 7px;
}
.case-card {
    padding: 8px 8px 6px;
    border-radius: 8px;
    background: linear-gradient(145deg, rgba(35, 45, 85, 0.88), rgba(22, 28, 65, 0.92));
    border: 1px solid rgba(120, 160, 255, 0.18);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease,
        left 0.35s cubic-bezier(.4,.0,.2,1), top 0.35s cubic-bezier(.4,.0,.2,1),
        width 0.35s cubic-bezier(.4,.0,.2,1), height 0.35s cubic-bezier(.4,.0,.2,1),
        right 0.35s cubic-bezier(.4,.0,.2,1), bottom 0.35s cubic-bezier(.4,.0,.2,1),
        padding 0.35s ease, border-radius 0.35s ease;
    display: flex;
    flex-direction: column;
}
.case-card:hover {
    transform: translateY(-4px);
    border-color: rgba(120, 160, 255, 0.45);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.22);
}
.case-card::before {
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 180px; height: 180px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.28), transparent 70%);
    pointer-events: none;
}
.case-icon-wrap {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}
.case-expand-icon {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}
.case-idx {
    font-size: 9px;
    letter-spacing: 1px;
    color: var(--fg-3);
    font-family: "SF Mono", Menlo, monospace;
    margin-bottom: 4px;
}
.case-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--fg-0);
    line-height: 1.3;
    margin-bottom: 4px;
}
/* 案例详情 - 默认隐藏 */
.case-detail {
    display: none;
}

/* ============================================================
 * 案例卡片放大效果（互斥弹窗）
 * 定位参数：left 10% / top 10% / right 10% / height 80vh
 * ============================================================ */

/* 关闭按钮 — 展开后固定在视口右上角，不随卡片内容滚动 */
.card-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.25);
    color: #fff;
    border: 1px solid rgba(120, 160, 255, 0.3);
    font-size: 20px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    line-height: 1;
    z-index: 1001;
}
.card-close:hover {
    background: rgba(59, 130, 246, 0.4);
}

/* 卡片放大状态 —— 从点击位置平滑展开到全屏 */
.case-card.card-expand {
    position: fixed !important;
    left: 5% !important;
    top: 5% !important;
    right: 5% !important;
    bottom: 5% !important;
    width: auto !important;
    height: auto !important;
    z-index: 999;
    border-radius: 16px;
    /* 放大卡片：提亮背景 */
    background: #3a4a8a;
    border: 2px solid rgba(120, 160, 255, 0.35);
    padding: 60px !important;
    box-shadow: 0 10px 60px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    pointer-events: auto;
    margin: 0 !important;
}

/* 紧凑模式：内容少时展开较小，不显得空旷 */
.case-card.card-expand[data-expand-size="compact"] {
    left: 15% !important;
    top: 15% !important;
    right: 15% !important;
    bottom: 15% !important;
    padding: 36px !important;
}

/* 放大卡片：去掉顶部渐变特效 */
.case-card.card-expand::before {
    display: none;
}

.card-expand .case-detail {
    display: block;
}

/* ============================================================
 * 案例卡片放大后内部排版（PPT 发布会风格）
 * ============================================================ */

/* 放大卡片的整体内部布局 */
.case-card.card-expand {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* 头部区域：CASE编号 + 标题 + 角色 */
.case-card.card-expand .case-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.case-card.card-expand .case-idx {
    font-size: 11px;
    letter-spacing: 3px;
    color: #3b82f6;
    font-family: "SF Mono", Menlo, monospace;
    margin-bottom: 0;
}

.case-card.card-expand .case-icon-wrap {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.case-card.card-expand .case-expand-icon {
    display: none;
}

/* 标题区 */
.case-card.card-expand .case-title {
    font-size: 26px;
    font-weight: 800;
    color: #f0f4ff;
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.case-card.card-expand .case-role-inline {
    font-size: 13px;
    color: #c8d5f0;
    margin-bottom: 16px;
}

/* 成果/指标区 - 突出显示 */
.case-card.card-expand .case-outcome {
    font-size: 15px;
    color: #4ade80;
    font-weight: 600;
    background: rgba(16, 185, 129, 0.12);
    border-left: 3px solid #22c55e;
    padding: 10px 16px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 14px;
    line-height: 1.5;
}

/* 指标徽章行 */
.case-card.card-expand .case-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.case-card.card-expand .case-metric {
    background: rgba(59, 130, 246, 0.28);
    border: 1px solid rgba(59, 130, 246, 0.5);
    color: #e0eaff;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

/* 标签徽章 */
.case-card.card-expand .case-badges {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
}

.case-card.card-expand .case-badge {
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.4);
    color: #ddd6fe;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 6px;
}

/* 详情区分区 - 项目背景/成果/挑战/总结 */
.case-card.card-expand .case-detail {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 18px;
}

.case-card.card-expand .detail-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.case-card.card-expand .detail-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
    display: inline-block;
    width: fit-content;
}

.detail-label[data-type="background"] {
    background: rgba(59, 130, 246, 0.25);
    color: #dbeafe;
    border: 1px solid rgba(59, 130, 246, 0.4);
}
.detail-label[data-type="outcomes"] {
    background: rgba(16, 185, 129, 0.25);
    color: #bbf7d0;
    border: 1px solid rgba(16, 185, 129, 0.4);
}
.detail-label[data-type="challenges"] {
    background: rgba(245, 158, 11, 0.25);
    color: #fef08a;
    border: 1px solid rgba(245, 158, 11, 0.4);
}
.detail-label[data-type="summary"] {
    background: rgba(99, 102, 241, 0.25);
    color: #ddd6fe;
    border: 1px solid rgba(99, 102, 241, 0.4);
}

.case-card.card-expand .detail-text {
    /* 放大卡片：文字加亮加粗 */
    font-size: 14px;
    color: #ffffff;
    line-height: 1.8;
    padding-left: 2px;
}

.case-card.card-expand .detail-item {
    color: #ffffff;
    font-weight: 600;
    line-height: 1.7;
    margin-bottom: 4px;
}

.case-card.card-expand .case-outcome {
    font-size: 15px;
    font-weight: 700;
    color: #6ee7a7;
    background: rgba(16, 185, 129, 0.15);
    border-left: 3px solid #22c55e;
    padding: 10px 16px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 14px;
    line-height: 1.5;
}

.case-card.card-expand .case-title {
    font-size: 26px;
    font-weight: 800;
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 6px;
    letter-spacing: -0.3px;
}

.case-card.card-expand .case-role-inline {
    font-size: 14px;
    font-weight: 600;
    color: #c8d5f0;
    margin-bottom: 16px;
}

.case-card.card-expand .case-idx {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    color: #93c5fd;
    font-family: "SF Mono", Menlo, monospace;
    margin-bottom: 0;
}

.case-card.card-expand .detail-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
    display: inline-block;
    width: fit-content;
}

.detail-label[data-type="background"] {
    background: rgba(59, 130, 246, 0.3);
    color: #bfdbfe;
    border: 1px solid rgba(59, 130, 246, 0.5);
}
.detail-label[data-type="outcomes"] {
    background: rgba(16, 185, 129, 0.3);
    color: #bbf7d0;
    border: 1px solid rgba(16, 185, 129, 0.5);
}
.detail-label[data-type="challenges"] {
    background: rgba(245, 158, 11, 0.3);
    color: #fef08a;
    border: 1px solid rgba(245, 158, 11, 0.5);
}
.detail-label[data-type="summary"] {
    background: rgba(99, 102, 241, 0.3);
    color: #ddd6fe;
    border: 1px solid rgba(99, 102, 241, 0.5);
}

/* 关闭按钮位置微调 */
.case-card.card-expand .card-close {
    top: 24px;
    right: 24px;
}

/* 背景置灰：只暗当前 screen，不是整个 stage */
.screen.dim-bg {
    filter: brightness(0.4);
    pointer-events: none;
}

/* 详情内部 */
.detail-section {
    margin-bottom: 14px;
}
.detail-section:last-child { margin-bottom: 0; }
.detail-label {
    font-size: 11px;
    letter-spacing: 1.5px;
    color: var(--fg-3);
    text-transform: uppercase;
    margin-bottom: 6px;
    font-family: "SF Mono", Menlo, monospace;
}
.detail-text {
    font-size: 13px;
    color: var(--fg-2);
    line-height: 1.65;
}
.detail-item {
    font-size: 13px;
    color: var(--fg-2);
    line-height: 1.65;
    margin-bottom: 5px;
}
.detail-item:last-child { margin-bottom: 0; }
.case-role-inline {
    font-size: 10px;
    color: #9cb9ff;
    margin-bottom: 5px;
    padding: 2px 6px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--border);
    border-radius: 999px;
    display: inline-block;
}
.case-text {
    font-size: 13.5px;
    color: var(--fg-1);
    line-height: 1.75;
    margin-bottom: 16px;
    flex: 1;
}
.case-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
}
.case-metric {
    font-size: 10px;
    padding: 3px 6px;
    border-radius: 5px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.28), rgba(124, 58, 237, 0.22));
    border: 1px solid rgba(120, 160, 255, 0.3);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.3px;
}
.case-hint {
    font-size: 11px;
    color: rgba(120, 160, 255, 0.55);
    margin-top: 8px;
    font-style: italic;
}

/* ============================================================
 * Screen 6: Recognition 行业认可
 * ============================================================ */
.recog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
    margin-bottom: 28px;
}
.recog-card {
    padding: 26px 28px;
    border-radius: 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}
.recog-card::after {
    content: "";
    position: absolute;
    top: 0; right: 0; width: 120px; height: 120px;
    background: radial-gradient(circle at top right, rgba(245, 158, 11, 0.2), transparent 70%);
    pointer-events: none;
}
.recog-ico {
    font-size: 32px;
    margin-bottom: 12px;
}
.recog-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 6px;
}
.recog-sub {
    font-size: 12.5px;
    color: var(--fg-2);
    letter-spacing: 0.3px;
}

/* FAQ 块 */
.faq-block {
    margin-top: 28px;
    padding: 28px 32px;
    border-radius: 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
}
.faq-block h3 {
    font-size: 15px;
    color: var(--fg-0);
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}
.faq-item {
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
}
.faq-item:last-child { border-bottom: none; }
.faq-q {
    font-size: 13.5px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
}
.faq-a {
    font-size: 13px;
    color: var(--fg-1);
    line-height: 1.75;
}

/* ============================================================
 * Screen 7: Contact 联系
 * ============================================================ */
.screen-contact {
    justify-content: center;
    align-items: center;
}
.screen-contact > * { max-width: 1100px; width: 100%; }
.contact-card {
    padding: 36px 40px;
    border-radius: 22px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.contact-card::before {
    content: "";
    position: absolute;
    top: 0; right: 0; width: 300px; height: 300px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.25), transparent 70%);
    pointer-events: none;
}

/* 两列主布局 */
.contact-main {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: center;
}
.contact-info { display: flex; flex-direction: column; }

.contact-row {
    display: grid;
    grid-template-columns: 40px 120px 1fr;
    gap: 16px;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}
.contact-row:last-of-type { border-bottom: none; }
.contact-ico { font-size: 20px; }
.contact-label {
    font-size: 12px;
    color: var(--fg-2);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.contact-value {
    font-size: 15.5px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.3px;
}
.contact-ai {
    margin-top: 24px;
    text-align: center;
}

/* 微信二维码卡片 */
.contact-wechat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 24px 20px;
    background: linear-gradient(145deg, rgba(59, 130, 246, 0.08), rgba(124, 58, 237, 0.08));
    border-radius: 18px;
    border: 1px solid var(--card-border);
}
.wechat-frame {
    background: #fff;
    padding: 12px;
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    width: 240px;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.wechat-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}
.wechat-caption {
    text-align: center;
}
.wechat-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    letter-spacing: 1px;
}
.wechat-desc {
    font-size: 12.5px;
    color: var(--fg-2);
    margin-top: 6px;
    line-height: 1.6;
}

.site-footer {
    margin-top: 40px;
    padding-top: 22px;
    border-top: 1px solid var(--border);
    font-size: 11.5px;
    color: var(--fg-3);
    letter-spacing: 0.8px;
    text-align: center;
}
.icp-link {
    color: var(--fg-3);
    text-decoration: none;
    opacity: 0.7;
}
.icp-link:hover { opacity: 1; text-decoration: underline; }

/* ============================================================
 * AI 悬浮窗
 * ============================================================ */
.fab {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 50;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px 14px 16px;
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.25);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    letter-spacing: 0.5px;
    position: fixed;
}
.fab:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 18px 40px rgba(59, 130, 246, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.fab-pulse {
    position: absolute;
    inset: -3px;
    border-radius: 999px;
    border: 2px solid rgba(59, 130, 246, 0.4);
    animation: fab-pulse 2.2s ease-out infinite;
    pointer-events: none;
}
@keyframes fab-pulse {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(1.15); opacity: 0; }
}

.chat-window {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 60;
    width: 400px;
    height: 600px;
    max-height: calc(100vh - 80px);
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(15, 22, 50, 0.95), rgba(10, 14, 35, 0.98));
    backdrop-filter: blur(24px);
    border: 1px solid var(--border-strong);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(120, 160, 255, 0.08);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(24px) scale(0.96);
    transform-origin: bottom right;
    pointer-events: none;
    transition: opacity 0.28s ease, transform 0.28s cubic-bezier(0.2, 1.25, 0.4, 1);
}
.chat-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.chat-window-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(124, 58, 237, 0.08));
}
.chat-window-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--fg-0);
}
.chat-window-title .ai-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulse-dot 2s ease-in-out infinite;
}
.chat-window-title .chat-sub {
    font-size: 10.5px;
    color: var(--fg-2);
    font-weight: 400;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.chat-close {
    background: none;
    border: none;
    color: var(--fg-2);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    padding: 2px 8px;
    border-radius: 6px;
    transition: all 0.15s;
}
.chat-close:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.chat-window-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scrollbar-width: thin;
}
.chat-window-body::-webkit-scrollbar { width: 4px; }
.chat-window-body::-webkit-scrollbar-thumb { background: rgba(120, 160, 255, 0.2); border-radius: 2px; }

.msg {
    display: flex;
    gap: 10px;
    max-width: 100%;
    animation: msg-in 0.3s ease-out;
}
@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.msg.user { flex-direction: row-reverse; }

.msg-avatar {
    width: 30px;
    height: 30px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}
.msg.ai .msg-avatar {
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: #fff;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}
.msg.user .msg-avatar {
    background: #1e293b;
    color: #e6ecff;
    border: 1px solid var(--border);
}

.msg-bubble {
    padding: 10px 14px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.65;
    max-width: 280px;
    word-wrap: break-word;
    white-space: pre-wrap;
}
.msg.ai .msg-bubble {
    background: rgba(30, 40, 80, 0.7);
    border: 1px solid var(--border);
    color: var(--fg-0);
    border-top-left-radius: 4px;
}
.msg.user .msg-bubble {
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: #fff;
    border-top-right-radius: 4px;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.msg-loading .msg-bubble {
    display: inline-flex;
    gap: 5px;
    align-items: center;
    padding: 12px 16px;
}
.msg-loading span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #9cb9ff;
    animation: bounce-dot 1.1s ease-in-out infinite;
}
.msg-loading span:nth-child(2) { animation-delay: 0.15s; }
.msg-loading span:nth-child(3) { animation-delay: 0.3s; }
@keyframes bounce-dot {
    0%, 80%, 100% { transform: scale(0.7); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

.msg-source {
    font-size: 10.5px;
    color: var(--fg-3);
    margin-left: 40px;
    margin-top: -6px;
    letter-spacing: 0.3px;
}

.chat-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 16px 10px;
    border-top: 1px solid var(--border);
    background: rgba(10, 14, 35, 0.4);
}
.chat-quick-btn {
    font-size: 11.5px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--fg-1);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}
.chat-quick-btn:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(120, 160, 255, 0.35);
    color: #fff;
}

.chat-window-input {
    display: flex;
    gap: 10px;
    padding: 12px 14px 14px;
    background: rgba(10, 14, 35, 0.6);
    align-items: flex-end;
    border-top: 1px solid var(--border);
}
.chat-window-input textarea {
    flex: 1;
    resize: none;
    background: rgba(20, 28, 64, 0.6);
    border: 1px solid var(--border);
    color: var(--fg-0);
    font-family: inherit;
    font-size: 13px;
    padding: 10px 12px;
    border-radius: 12px;
    outline: none;
    line-height: 1.5;
    transition: border-color 0.15s, background 0.15s;
    max-height: 100px;
}
.chat-window-input textarea:focus {
    border-color: rgba(120, 160, 255, 0.45);
    background: rgba(20, 28, 64, 0.85);
}
.chat-window-input textarea::placeholder { color: var(--fg-3); }
.chat-window-input button {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}
.chat-window-input button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(59, 130, 246, 0.5);
}
.chat-window-input button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

/* ============================================================
 * 响应式
 * ============================================================ */
@media (max-width: 1200px) {
    .hero-title { font-size: 60px; }
    .screen-title { font-size: 40px; }
    .hero-metrics { grid-template-columns: repeat(2, 1fr); }
    .about-grid { grid-template-columns: 1fr; }
    .screen { padding: 60px 48px; }
}

@media (max-width: 860px) {
    .app {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: auto;
        min-height: 100vh;
        overflow-y: auto;
    }
    html, body { overflow: auto; }
    .sidebar {
        padding: 16px;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
    }
    .brand-chip {
        padding-bottom: 0;
        border-bottom: none;
        margin-right: 16px;
    }
    .nav-list {
        flex-direction: row;
        flex-wrap: wrap;
        overflow-x: auto;
        flex: 1;
        margin-top: 0;
        gap: 4px;
    }
    .nav-item {
        padding: 8px 12px;
        font-size: 12px;
    }
    .sidebar-footer { display: none; }
    .screen { padding: 50px 28px; }
    .hero-title { font-size: 46px; }
    .screen-title { font-size: 34px; }
    .chat-window {
        width: calc(100vw - 32px);
        height: 70vh;
        bottom: 16px; right: 16px;
    }
    .fab { bottom: 16px; right: 16px; padding: 12px 18px; }
    .hero-metrics { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .contact-row { grid-template-columns: 30px 1fr; gap: 8px; }
    .contact-label { display: none; }
    /* 联系模块：移动端改为上下布局 */
    .contact-main {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .contact-wechat { padding: 20px; }
    .wechat-frame { width: 200px; height: 200px; }
}

/* ============================================================
 * 新增：About 页面布局（左右两栏）
 * ============================================================ */
.about-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 28px;
    align-items: start;
}

/* 人物卡片 */
.persona-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.persona-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; height: 80px;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.2), transparent);
    pointer-events: none;
}
.persona-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 3px solid rgba(120, 160, 255, 0.3);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    margin: 32px auto 16px;
    display: block;
}
.persona-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(124, 58, 237, 0.2));
    border: 3px solid rgba(120, 160, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 32px auto 16px;
}
.persona-avatar-inner { opacity: 0.6; }
.persona-name {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}
.persona-en {
    font-size: 11.5px;
    color: var(--fg-3);
    letter-spacing: 1px;
    margin-bottom: 10px;
}
.persona-title {
    font-size: 12.5px;
    color: #9cb9ff;
    padding: 6px 14px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 999px;
    display: inline-block;
    margin-bottom: 16px;
}
.persona-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
}
.persona-tag {
    font-size: 10.5px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid var(--border);
    color: var(--fg-2);
}

/* 快速指标 */
.quick-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin-top: 16px;
}
.qs-item {
    background: rgba(20, 28, 64, 0.6);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 8px;
    text-align: center;
}
.qs-num {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(180deg, #8bb4ff, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
.qs-label {
    font-size: 10px;
    color: var(--fg-3);
    margin-top: 4px;
}

/* 教育卡片 */
.edu-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 18px 20px;
    margin-top: 12px;
}
.edu-title {
    font-size: 12px;
    color: var(--fg-3);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.edu-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    border-bottom: 1px dashed var(--border);
}
.edu-row:last-child { border-bottom: none; }
.edu-row svg { flex-shrink: 0; margin-top: 3px; color: var(--accent); }
.edu-major {
    font-size: 13px;
    font-weight: 600;
    color: var(--fg-0);
}
.edu-school {
    font-size: 11px;
    color: var(--fg-3);
    margin-top: 2px;
}

/* 右侧：职业路径 */
.about-right { display: flex; flex-direction: column; gap: 20px; }
.path-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.path-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--fg-0);
}
.path-sub {
    font-size: 11px;
    color: var(--fg-3);
    letter-spacing: 0.5px;
}

.career-path {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding-left: 12px;
}
.path-node {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    position: relative;
    padding: 12px 0;
}
.path-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #7c3aed);
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.6);
    flex-shrink: 0;
    margin-top: 4px;
    border: 2px solid rgba(59, 130, 246, 0.3);
}
.path-line {
    position: absolute;
    left: 6px;
    top: 26px;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(59, 130, 246, 0.5), rgba(124, 58, 237, 0.1));
}
.path-content { flex: 1; }
.path-period {
    font-size: 11px;
    color: var(--fg-3);
    letter-spacing: 0.5px;
    margin-bottom: 3px;
}
.path-company {
    font-size: 14px;
    font-weight: 700;
    color: var(--fg-0);
}
.path-role {
    font-size: 12px;
    color: var(--fg-2);
    margin-top: 2px;
}

/* 成就标签云 */
.highlight-cloud {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 20px 22px;
}
.cloud-title {
    font-size: 12px;
    color: var(--fg-3);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.cloud-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 6px 0;
    font-size: 12.5px;
    color: var(--fg-1);
    line-height: 1.55;
}
.cloud-item svg { flex-shrink: 0; margin-top: 3px; }

/* 行业经验 + 语言能力：两列并排 */
.about-extras {
    margin-top: 14px;
}
.about-extras-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.extra-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.extra-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: rgba(124, 58, 237, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.extra-industry .extra-icon { background: rgba(124, 58, 237, 0.12); }
.extra-language .extra-icon { background: rgba(6, 182, 212, 0.12); }
.extra-title {
    font-size: 11.5px;
    letter-spacing: 1.5px;
    color: var(--fg-3);
    text-transform: uppercase;
    font-weight: 700;
}
.extra-content {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.extra-tag {
    font-size: 12px;
    color: var(--fg-1);
    line-height: 1.5;
}

/* ============================================================
 * Experience：卡片网格风格
 * ============================================================ */
.exp-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}
.exp-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 22px 22px 18px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.exp-card::before {
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 100px; height: 100px;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.15), transparent 70%);
    pointer-events: none;
}
.exp-card:hover {
    transform: translateY(-2px);
    border-color: rgba(120, 160, 255, 0.32);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.15);
}
.exp-card-icon {
    flex-shrink: 0;
    margin-top: 2px;
}
.exp-card-body { flex: 1; }
.exp-card-company {
    font-size: 14px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 3px;
}
.exp-card-role {
    font-size: 12px;
    color: #9cb9ff;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.intern-badge {
    font-size: 10px;
    padding: 1px 7px;
    border-radius: 999px;
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
    letter-spacing: 0.5px;
}
.exp-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 8px;
}
.exp-card-tags .exp-tag { font-size: 10.5px; }
.exp-card-highlights { display: flex; flex-direction: column; gap: 4px; }
.exp-highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 7px;
    font-size: 11.5px;
    color: var(--fg-1);
    line-height: 1.5;
}
.exp-highlight-item svg { flex-shrink: 0; margin-top: 2px; }
.metric-tag {
    background: rgba(124, 58, 237, 0.1) !important;
    border-color: rgba(124, 58, 237, 0.25) !important;
    color: #b4a0ff !important;
}

.cap-section-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--fg-3);
    text-transform: uppercase;
    font-family: "SF Mono", Menlo, monospace;
    margin-bottom: 10px;
    margin-top: 20px;
}
.cap-section-label:first-child { margin-top: 0; }
.lang-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}
.lang-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    flex: 1;
    min-width: 140px;
}
.lang-lang {
    font-size: 15px;
    font-weight: 700;
    color: var(--fg-0);
}
.lang-level {
    font-size: 13px;
    color: var(--fg-2);
}

/* 行业经验 */
.industry-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}
.ind-tag {
    font-size: 13px;
    color: var(--fg-1);
}

/* ============================================================
 * Products / Capabilities：大字能力卡片
 * ============================================================ */
.cap-section-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--fg-3);
    text-transform: uppercase;
    font-family: "SF Mono", Menlo, monospace;
    margin-bottom: 10px;
    margin-top: 20px;
}
.cap-profile-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 12px;
}
.cap-profile-row.cap-two-col {
    grid-template-columns: 1fr 1fr;
}
.cap-profile-row .cap-card {
    padding: 12px 14px;
}
.cap-profile-row .cap-icon {
    width: 28px;
    height: 28px;
}
.cap-profile-row .cap-name {
    font-size: 12px;
    margin-bottom: 6px;
}
.cap-profile-row .cap-desc {
    font-size: 12px;
    color: var(--fg-1);
}

.cap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.cap-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 16px 14px;
    position: relative;
    overflow: hidden;
    transition: all 0.25s ease;
}
.cap-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    opacity: 0;
    transition: opacity 0.25s;
}
.cap-card:hover {
    transform: translateY(-3px);
    border-color: rgba(120, 160, 255, 0.32);
    box-shadow: 0 14px 36px rgba(59, 130, 246, 0.15);
}
.cap-card:hover::before { opacity: 1; }
.cap-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.cap-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 6px;
    line-height: 1.35;
}
.cap-desc {
    font-size: 12px;
    color: var(--fg-2);
    line-height: 1.5;
    margin-bottom: 8px;
}
.cap-metrics { display: flex; flex-wrap: wrap; gap: 5px; }
.cap-metric {
    font-size: 10.5px;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
    font-weight: 600;
}

/* ============================================================
 * Recognition：奖项墙 + 标杆案例
 * ============================================================ */
.recog-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}
.recog-left, .recog-right {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px 20px;
}
.recog-award-title, .recog-cert-title, .recog-proj-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.recog-cert-title { margin-top: 20px; }

.award-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
}
.award-item:last-child { border-bottom: none; }
.award-medal { flex-shrink: 0; }
.award-text {
    font-size: 13px;
    color: var(--fg-1);
    line-height: 1.55;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 13px;
    color: var(--fg-1);
}
.cert-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 6px #10b981;
    flex-shrink: 0;
}

.recog-proj-card {
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(20, 28, 64, 0.5);
    border: 1px solid var(--border);
    margin-bottom: 10px;
    transition: all 0.2s ease;
}
.recog-proj-card:hover {
    border-color: rgba(124, 58, 237, 0.3);
    background: rgba(30, 40, 80, 0.6);
}
.recog-proj-name {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--fg-0);
    margin-bottom: 4px;
}
.recog-proj-outcome {
    font-size: 12px;
    color: var(--fg-2);
    line-height: 1.55;
}

/* FAQ 网格 */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}
.faq-card {
    background: rgba(20, 28, 64, 0.5);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 18px;
    transition: all 0.2s ease;
}
.faq-card:hover {
    border-color: rgba(120, 160, 255, 0.32);
    background: rgba(25, 35, 75, 0.6);
}
.faq-q {
    font-size: 12.5px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1.5;
}
.faq-a {
    font-size: 12px;
    color: var(--fg-2);
    line-height: 1.65;
}

/* 响应式补充 */
@media (max-width: 900px) {
    .about-layout { grid-template-columns: 1fr; }
    .recog-layout { grid-template-columns: 1fr; }
    .hero-title { font-size: 50px; }
    .screen-title { font-size: 36px; }
    .cap-grid { grid-template-columns: repeat(2, 1fr); }
    .case-gallery { grid-template-columns: repeat(3, 1fr); }
    .cert-gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .hero-title { font-size: 38px; }
    .screen-title { font-size: 28px; }
    .cap-grid { grid-template-columns: 1fr; }
    .exp-cards { grid-template-columns: 1fr; }
    .metric { padding: 16px 14px; }
    .metric-num { font-size: 26px; }
    .case-gallery { grid-template-columns: repeat(2, 1fr); }
    .cert-gallery { grid-template-columns: 1fr; }
    .about-extras-row { grid-template-columns: 1fr; }
}

/* ============================================================
 * 图片展示组件样式
 * ============================================================ */

/* 简历封面图 */
.resume-cover {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid var(--card-border);
}
.resume-cover img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.resume-cover-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px 14px;
    background: linear-gradient(0deg, rgba(5, 8, 20, 0.9), transparent);
    color: rgba(255, 255, 255, 0.7);
    font-size: 11.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* 公司/履历视觉区 */
.exp-visual {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid var(--card-border);
}
.exp-visual img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.exp-visual-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(124, 58, 237, 0.05));
    display: flex;
    align-items: flex-start;
    padding: 14px;
}
.exp-visual-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    padding: 5px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 产品能力视觉区 */
.products-visual {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid rgba(124, 58, 237, 0.25);
}
.products-visual img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.products-visual-label {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 8px 14px;
    background: linear-gradient(0deg, rgba(5, 8, 20, 0.92), transparent);
    color: rgba(255, 255, 255, 0.8);
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    border-top: 1px solid rgba(124, 58, 237, 0.2);
}

/* 项目图片画廊 */
.case-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}
.case-gallery-item {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--card-border);
    transition: all 0.25s ease;
    aspect-ratio: 16/9;
    background: rgba(20, 28, 64, 0.5);
}
.case-gallery-item:hover {
    transform: scale(1.03);
    border-color: rgba(120, 160, 255, 0.35);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.2);
}
.case-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ============================================================
 * 行业认可轮播（荣誉图片）
 * ============================================================ */
.honor-carousel {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    max-height: 340px;
    border-radius: 16px;
    overflow: hidden;
    background: rgba(20, 28, 64, 0.5);
    border: 1px solid var(--card-border);
    margin-bottom: 24px;
}
.carousel-track {
    width: 100%;
    height: 100%;
    position: relative;
}
.carousel-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}
.carousel-slide.active {
    opacity: 1;
    pointer-events: auto;
}
.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #0f1630;
}

/* 左右箭头按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(30, 40, 90, 0.75);
    border: 1px solid rgba(120, 160, 255, 0.25);
    color: #fff;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    z-index: 5;
    backdrop-filter: blur(4px);
}
.carousel-btn:hover {
    background: rgba(59, 130, 246, 0.6);
    transform: translateY(-50%) scale(1.1);
}
.carousel-prev { left: 12px; }
.carousel-next { right: 12px; }

/* 底部指示点 */
.carousel-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 5;
}
.carousel-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: all 0.25s ease;
}
.carousel-dot.active {
    background: #3b82f6;
    width: 18px;
    border-radius: 3px;
}

/* 小屏幕下轮播高度 */
@media (max-width: 600px) {
    .honor-carousel { aspect-ratio: 4/3; max-height: 220px; }
    .carousel-btn { width: 32px; height: 32px; font-size: 18px; }
}

/* ============================================================
 * 证书画廊（备用 / 其他页面）
 * ============================================================ */
.cert-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}
.cert-gallery-item {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(245, 158, 11, 0.2);
    background: rgba(20, 28, 64, 0.5);
    transition: all 0.25s ease;
    aspect-ratio: 4/3;
}
.cert-gallery-item:hover {
    transform: translateY(-3px);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 10px 28px rgba(245, 158, 11, 0.15);
}
.cert-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ============ 顶部代写服务 Banner ============ */
.top-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: linear-gradient(90deg, #f59e0b 0%, #ea580c 50%, #dc2626 100%);
    color: #fff;
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
    animation: banner-slide 0.5s ease;
}
@keyframes banner-slide {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}
.top-banner-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.top-banner-text {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 14px;
}
.top-banner-tag {
    background: rgba(255, 255, 255, 0.25);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.top-banner-main {
    font-size: 16px;
    font-weight: 700;
}
.top-banner-sub {
    font-size: 13px;
    opacity: 0.95;
}
.top-banner-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.top-banner-btn {
    background: #fff;
    color: #dc2626;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.top-banner-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}
.top-banner-btn-secondary {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.4);
    backdrop-filter: blur(8px);
    font-weight: 600;
}
.top-banner-btn-secondary:hover {
    background: rgba(255,255,255,0.25);
    color: #fff;
}
.top-banner-close {
    background: transparent;
    border: none;
    color: #fff;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0.85;
    transition: opacity 0.2s;
}
.top-banner-close:hover { opacity: 1; }

@media (max-width: 720px) {
    .top-banner-inner { padding: 8px 12px; }
    .top-banner-sub { display: none; }
    .top-banner-main { font-size: 14px; }
}

/* ============ 定价卡 ============ */
.screen-pricing {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    padding: 60px 24px;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 32px auto 24px;
}
.pricing-card {
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 16px;
    padding: 32px 24px;
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}
.pricing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 20px 40px rgba(245, 158, 11, 0.15);
}
.pricing-card-featured {
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.1) 0%, rgba(220, 38, 38, 0.05) 100%);
    border: 2px solid rgba(245, 158, 11, 0.6);
    transform: scale(1.05);
}
.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, #f59e0b, #ea580c);
    color: #fff;
    padding: 4px 14px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}
.pricing-tier {
    font-size: 18px;
    font-weight: 600;
    color: #94a3b8;
    margin-bottom: 8px;
}
.pricing-amount {
    font-size: 48px;
    font-weight: 800;
    color: #f1f5f9;
    margin-bottom: 4px;
    line-height: 1;
}
.pricing-amount .currency {
    font-size: 24px;
    font-weight: 600;
    color: #f59e0b;
    margin-right: 4px;
}
.pricing-tagline {
    font-size: 14px;
    color: #94a3b8;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    flex: 1;
}
.pricing-features li {
    padding: 8px 0;
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.5;
}
.pricing-features li strong {
    color: #fbbf24;
    font-weight: 700;
}
.pricing-cta {
    display: block;
    text-align: center;
    padding: 14px;
    background: rgba(148, 163, 184, 0.1);
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: #e2e8f0;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.2s;
}
.pricing-cta:hover {
    background: rgba(148, 163, 184, 0.2);
    border-color: rgba(148, 163, 184, 0.5);
}
.pricing-cta-featured {
    background: linear-gradient(90deg, #f59e0b, #ea580c);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
}
.pricing-cta-featured:hover {
    background: linear-gradient(90deg, #ea580c, #dc2626);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
    transform: translateY(-1px);
}
.pricing-footer {
    text-align: center;
    color: #94a3b8;
    font-size: 14px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 0;
}
.pricing-footer strong {
    color: #fbbf24;
    font-weight: 700;
}
@media (max-width: 900px) {
    .pricing-grid { grid-template-columns: 1fr; gap: 16px; }
    .pricing-card-featured { transform: none; }
}

/* ============ 代写服务浮动按钮 ============ */
.fab-service {
    left: 24px !important;
    right: auto !important;
    bottom: 100px !important;
    width: auto !important;
    height: auto !important;
    padding: 12px 20px !important;
    background: linear-gradient(135deg, #f59e0b, #ea580c) !important;
    border: none !important;
    color: #fff !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    animation: fab-pulse 2.5s infinite;
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5) !important;
}
.fab-service:hover {
    transform: scale(1.05);
}
.fab-service-icon { font-size: 22px; }
.fab-service-text {
    font-size: 13px;
    line-height: 1.3;
    text-align: left;
    color: #fff;
    font-weight: 500;
}
.fab-service-text strong {
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
@keyframes fab-pulse {
    0%, 100% { box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5); }
    50% { box-shadow: 0 6px 28px rgba(245, 158, 11, 0.8), 0 0 0 8px rgba(245, 158, 11, 0.15); }
}
@media (max-width: 720px) {
    .fab-service {
        left: 12px !important;
        bottom: 90px !important;
        padding: 8px 14px !important;
    }
    .fab-service-text { font-size: 11px; }
    .fab-service-text strong { font-size: 14px; }
    .fab-service-icon { font-size: 18px; }
}