/* ==================== 刷新防闪屏（已登录用户） ==================== */
/* 首屏就隐藏介绍页，避免“先回到登录介绍页 -> 又跳回主界面”的闪烁体验 */
.adhunter-preauth #authContainer {
    display: none !important;
}
.adhunter-preauth #appContainer {
    display: flex !important;
}

/* ==================== 滚动式产品介绍登录页 ==================== */

/* 品牌字体 */
.landing-container,
.landing-container * {
    font-family: var(--font-display);
}

/* 主容器 */
.landing-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    overflow-y: auto;
    overflow-x: hidden;
    background: linear-gradient(180deg, #fafbfc 0%, #f0f2f5 100%);
    scroll-behavior: smooth;
    padding-bottom: 96px;
}

/* 固定顶部导航 */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    transition: all 0.3s ease;
}

.landing-nav-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.landing-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.landing-logo-text {
    font-size: 26px;
    font-weight: 900;
    color: #1a1a2e;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #1a1a2e 0%, #ff9f40 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-logo-badge {
    font-size: 10px;
    font-weight: 800;
    color: white;
    background: linear-gradient(135deg, #ff9f40 0%, #ffb347 100%);
    padding: 3px 8px;
    border-radius: 6px;
    letter-spacing: 1px;
    margin-top: -8px;
}

.landing-nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.landing-nav-links .nav-link {
    color: #4a5568;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.landing-nav-links .nav-link:hover {
    color: #ff9f40;
}

.landing-nav-links .nav-link-highlight {
    color: var(--color-primary-dark);
    font-weight: 700;
}

.landing-nav-links .nav-link-highlight:hover {
    color: var(--color-primary);
}

.nav-login-btn {
    background: linear-gradient(135deg, #ff9f40 0%, #ffb347 100%);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 159, 64, 0.3);
}

.nav-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 159, 64, 0.4);
}

/* Hero 首屏区域 */
.landing-hero {
    min-height: 100vh;
    padding: 120px 48px 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #fefefe 0%, #f8f9fb 50%, #f0f4f8 100%);
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
}

.hero-shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 159, 64, 0.15) 0%, transparent 70%);
    top: -150px;
    right: -100px;
    animation: authFloatShape 12s ease-in-out infinite;
}

.hero-shape-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 193, 7, 0.12) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    animation: authFloatShape 10s ease-in-out infinite reverse;
}

.hero-shape-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.1) 0%, transparent 70%);
    top: 40%;
    left: 30%;
    animation: authFloatShape 8s ease-in-out infinite 2s;
}

@keyframes authFloatShape {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.05); }
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: authSlideInLeft 0.8s ease-out;
}

@keyframes authSlideInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 159, 64, 0.12) 0%, rgba(255, 193, 7, 0.08) 100%);
    color: #e67e22;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 159, 64, 0.2);
}

.hero-title {
    margin-bottom: 28px;
}

.hero-title-main {
    display: block;
    font-size: 64px;
    font-weight: 900;
    color: #1a1a2e;
    line-height: 1.1;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #1a1a2e 0%, #2d3748 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title-sub {
    display: block;
    font-size: 28px;
    font-weight: 600;
    color: #ff9f40;
    margin-top: 12px;
    letter-spacing: -0.5px;
}

.hero-desc {
    font-size: 18px;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-desc-sub {
    font-size: 14px;
    color: #718096;
    margin-top: 8px;
    line-height: 1.8;
}

.hero-promo-strip {
    display: grid;
    gap: 8px;
    margin: 20px 0 30px;
    padding: 18px 20px;
    max-width: 560px;
    border-radius: 18px;
    background:
        radial-gradient(circle at right top, rgba(250, 204, 21, 0.26), transparent 34%),
        linear-gradient(135deg, rgba(255, 247, 237, 0.98), rgba(255, 255, 255, 0.96));
    border: 1px solid rgba(249, 115, 22, 0.18);
    box-shadow: 0 16px 40px rgba(249, 115, 22, 0.08);
}

.hero-promo-kicker {
    display: inline-flex;
    width: fit-content;
    padding: 6px 12px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f97316, #facc15);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-promo-strip strong {
    font-size: 18px;
    font-weight: 800;
    color: #1f2937;
}

.hero-promo-strip span:last-child {
    font-size: 13px;
    line-height: 1.75;
    color: #6b7280;
}

.hero-desc strong {
    color: #2d3748;
    font-weight: 600;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 40px;
    padding: 24px 32px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: #ff9f40;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 13px;
    color: #718096;
    margin-top: 6px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: #e2e8f0;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-btn {
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.hero-btn-primary {
    background: linear-gradient(135deg, #ff9f40 0%, #ffb347 100%);
    color: white;
    border: none;
    box-shadow: 0 8px 30px rgba(255, 159, 64, 0.35);
}

.hero-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(255, 159, 64, 0.45);
}

.hero-btn-secondary {
    background: white;
    color: #4a5568;
    border: 2px solid #e2e8f0;
}

.hero-btn-secondary:hover {
    border-color: #ff9f40;
    color: #ff9f40;
}

/* Hero 右侧视觉区域 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: authSlideInRight 0.8s ease-out 0.2s both;
}

@keyframes authSlideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

.hero-card-stack {
    position: relative;
    width: 400px;
    height: 350px;
}

.hero-float-card {
    position: absolute;
    background: white;
    border-radius: 20px;
    padding: 24px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.hero-float-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.12);
}

.hfc-1 {
    top: 0;
    left: 0;
    animation: authFloatCard 4s ease-in-out infinite;
}

.hfc-2 {
    top: 110px;
    left: 80px;
    animation: authFloatCard 4s ease-in-out infinite 0.5s;
}

.hfc-3 {
    top: 220px;
    left: 40px;
    animation: authFloatCard 4s ease-in-out infinite 1s;
}

.hfc-4 {
    top: 330px;
    left: 100px;
    animation: authFloatCard 4s ease-in-out infinite 1.5s;
    background: linear-gradient(135deg, #E6F0FF, #F3E5F5);
}

.hfc-5 {
    top: 235px;
    right: -72px;
    animation: authFloatCard 4s ease-in-out infinite 1.9s;
    background: linear-gradient(135deg, #ecfeff, #fff7ed);
    border-color: rgba(14, 165, 233, 0.16);
}

.hero-float-card-optimizer {
    animation-delay: 0.9s;
    background: linear-gradient(135deg, #fff4e6, #fff8eb);
    border-color: rgba(255, 179, 71, 0.22);
}

.hero-float-card-image {
    box-shadow: 0 24px 64px rgba(14, 165, 233, 0.12);
}

@keyframes authFloatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.hfc-icon {
    font-size: 32px;
}

.hfc-text {
    font-size: 18px;
    font-weight: 600;
    color: #2d3748;
}

/* 滚动提示 */
.scroll-hint {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: #a0aec0;
    animation: authBounce 2s ease-in-out infinite;
}

.scroll-text {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1px;
}

.scroll-arrow {
    font-size: 20px;
}

@keyframes authBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* 通用 Section 样式 */
.landing-section {
    padding: 100px 48px;
    position: relative;
}

.section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 159, 64, 0.12) 0%, rgba(255, 193, 7, 0.08) 100%);
    color: #e67e22;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-optimizer {
    background:
        radial-gradient(circle at 16% 20%, rgba(255, 159, 64, 0.16), transparent 24%),
        radial-gradient(circle at 84% 18%, rgba(245, 166, 35, 0.12), transparent 20%),
        linear-gradient(180deg, #fff9f2 0%, #fffdf8 100%);
}

.section-tag-optimizer {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 12px 28px rgba(255, 140, 0, 0.16);
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.section-desc {
    font-size: 18px;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 功能介绍区域 */
.section-features {
    background:
        radial-gradient(circle at top left, rgba(255, 179, 71, 0.18), transparent 28%),
        radial-gradient(circle at top right, rgba(99, 179, 237, 0.16), transparent 24%),
        linear-gradient(180deg, #f4f7fb 0%, #ffffff 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 28px;
}

.feature-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    background: rgba(255, 255, 255, 0.92);
    border-radius: 22px;
    padding: 34px 28px 30px;
    text-align: left;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 3px;
    border-radius: 0 0 999px 999px;
    background: linear-gradient(90deg, #ff9f40, #ffcf70);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
    border-color: rgba(255, 179, 71, 0.28);
}

.feature-card-optimizer {
    border: 2px solid rgba(255, 140, 0, 0.22);
    background: linear-gradient(180deg, rgba(255, 249, 240, 0.96) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.feature-card-ai-image {
    border: 2px solid rgba(14, 165, 233, 0.18);
    background:
        radial-gradient(circle at 86% 12%, rgba(125, 211, 252, 0.18), transparent 30%),
        linear-gradient(180deg, rgba(240, 249, 255, 0.96) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.feature-card-ecom-image {
    border: 2px solid rgba(249, 115, 22, 0.18);
    background:
        radial-gradient(circle at 88% 10%, rgba(251, 146, 60, 0.18), transparent 30%),
        linear-gradient(180deg, rgba(255, 247, 237, 0.96) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.feature-card-optimizer::before {
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.feature-card-ai-image::before {
    background: linear-gradient(90deg, #0ea5e9, #22d3ee);
}

.feature-card-ecom-image::before {
    background: linear-gradient(90deg, #f97316, #facc15);
}

.feature-card:nth-child(4n + 2)::before {
    background: linear-gradient(90deg, #2bb3ff, #7bdff2);
}

.feature-card:nth-child(4n + 3)::before {
    background: linear-gradient(90deg, #7c5cff, #b18cff);
}

.feature-card:nth-child(4n + 4)::before {
    background: linear-gradient(90deg, #22c55e, #7ee787);
}

.feature-icon-wrap {
    width: 68px;
    height: 68px;
    margin: 0 0 18px;
    background: linear-gradient(135deg, rgba(255, 159, 64, 0.16) 0%, rgba(255, 193, 7, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.feature-icon-wrap-optimizer {
    background: var(--gradient-primary);
    box-shadow: 0 16px 28px rgba(255, 140, 0, 0.16);
}

.feature-icon-wrap-ai-image {
    background: linear-gradient(135deg, #0ea5e9, #22d3ee);
    box-shadow: 0 16px 28px rgba(14, 165, 233, 0.16);
}

.feature-icon-wrap-ecom-image {
    background: linear-gradient(135deg, #f97316, #facc15);
    box-shadow: 0 16px 28px rgba(249, 115, 22, 0.16);
}

.feature-card:nth-child(4n + 2) .feature-icon-wrap {
    background: linear-gradient(135deg, rgba(43, 179, 255, 0.16) 0%, rgba(123, 223, 242, 0.1) 100%);
}

.feature-card:nth-child(4n + 3) .feature-icon-wrap {
    background: linear-gradient(135deg, rgba(124, 92, 255, 0.16) 0%, rgba(177, 140, 255, 0.1) 100%);
}

.feature-card:nth-child(4n + 4) .feature-icon-wrap {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.16) 0%, rgba(126, 231, 135, 0.1) 100%);
}

.feature-icon {
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: #1a1a2e;
    text-transform: uppercase;
}

.feature-icon-inverse {
    color: var(--color-text-inverse);
}

.feature-chip {
    display: inline-flex;
    align-self: flex-start;
    margin-bottom: 12px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: rgba(15, 23, 42, 0.05);
    color: #475569;
}

.feature-chip-optimizer {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 10px 24px rgba(255, 140, 0, 0.16);
}

.feature-chip-ai-image {
    background: linear-gradient(135deg, #0ea5e9, #22d3ee);
    color: var(--color-text-inverse);
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.16);
}

.feature-chip-ecom-image {
    background: linear-gradient(135deg, #f97316, #facc15);
    color: var(--color-text-inverse);
    box-shadow: 0 10px 24px rgba(249, 115, 22, 0.16);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.feature-desc {
    margin: 0;
    font-size: 14px;
    color: #64748b;
    line-height: 1.75;
}

.feature-points {
    list-style: none;
    padding: 0;
    margin: 18px 0 0;
    display: grid;
    gap: 10px;
}

.feature-points li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
    font-size: 13px;
    line-height: 1.6;
    color: #475569;
}

.feature-points li::before {
    content: '+';
    color: #ff9f40;
    font-weight: 700;
    flex: none;
}

/* 增长与工具重点展示 */
.section-growth-suite {
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 159, 64, 0.14), transparent 24%),
        radial-gradient(circle at 88% 22%, rgba(124, 92, 255, 0.12), transparent 22%),
        linear-gradient(180deg, #ffffff 0%, #f7f8fc 100%);
}

.growth-suite-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.growth-suite-card {
    position: relative;
    overflow: hidden;
    padding: 38px 34px 32px;
    border-radius: 28px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.06);
    background: rgba(255, 255, 255, 0.94);
}

.growth-suite-card-optimizer {
    border-top: 4px solid var(--color-primary);
    background:
        radial-gradient(circle at top right, rgba(255, 159, 64, 0.18), transparent 32%),
        linear-gradient(180deg, rgba(255, 249, 240, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.growth-suite-card-optimizer-secondary {
    border-top: 4px solid var(--color-accent);
    background:
        radial-gradient(circle at top right, rgba(245, 166, 35, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(255, 252, 245, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.growth-suite-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
}

.growth-suite-card-affiliate {
    background:
        radial-gradient(circle at top right, rgba(255, 179, 71, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(255, 248, 243, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.growth-suite-card-affiliate::before {
    background: linear-gradient(90deg, #ff9f40, #ffcf70);
}

.growth-suite-card-tools {
    background:
        radial-gradient(circle at top right, rgba(43, 179, 255, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(240, 247, 255, 0.98) 0%, rgba(255, 255, 255, 0.98) 100%);
}

.growth-suite-card-tools::before {
    background: linear-gradient(90deg, #2bb3ff, #7c5cff);
}

.growth-suite-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.growth-suite-kicker {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #64748b;
}

.growth-suite-badge {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    color: #1e293b;
    font-size: 12px;
    font-weight: 700;
}

.growth-suite-badge-optimizer {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
}

.growth-suite-badge-accent {
    background: rgba(255, 140, 0, 0.12);
    color: var(--color-primary-dark);
    border: 1px solid rgba(255, 140, 0, 0.18);
}

.growth-suite-title {
    margin: 0 0 14px;
    font-size: 28px;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: #0f172a;
}

.growth-suite-desc {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
    color: #475569;
}

.growth-suite-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: 26px 0 24px;
}

.growth-stat-card {
    display: grid;
    gap: 6px;
    padding: 16px 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(148, 163, 184, 0.16);
}

.growth-stat-card strong {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 700;
    color: #0f172a;
}

.growth-stat-card span {
    font-size: 12px;
    line-height: 1.6;
    color: #64748b;
}

.growth-suite-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.growth-suite-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    line-height: 1.7;
    color: #334155;
}

.growth-suite-list li::before {
    content: '•';
    color: #ff9f40;
    font-size: 18px;
    line-height: 1;
    flex: none;
    transform: translateY(3px);
}

.growth-suite-card-tools .growth-suite-list li::before {
    color: #2bb3ff;
}

.nav-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.08em;
    line-height: 1.2;
    text-transform: uppercase;
}

.nav-badge-ai {
    background: var(--gradient-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 8px 18px rgba(255, 140, 0, 0.18);
}

.growth-suite-flow {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.growth-suite-flow span {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(148, 163, 184, 0.18);
    font-size: 12px;
    font-weight: 700;
    color: #475569;
}

/* 趋势分析重点展示 */
.section-trend-suite {
    background:
        radial-gradient(circle at 14% 24%, rgba(43, 179, 255, 0.16), transparent 26%),
        radial-gradient(circle at 88% 18%, rgba(255, 159, 64, 0.16), transparent 22%),
        linear-gradient(180deg, #f7f8fc 0%, #ffffff 100%);
}

.trend-suite-card {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 28px;
    padding: 38px 34px 32px;
    border-radius: 30px;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.06);
    background:
        radial-gradient(circle at top left, rgba(43, 179, 255, 0.14), transparent 28%),
        linear-gradient(180deg, rgba(242, 248, 255, 0.98) 0%, rgba(255, 252, 247, 0.98) 100%);
}

.trend-suite-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.trend-suite-kicker {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #64748b;
}

.trend-suite-badge {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.06);
    color: #1e293b;
    font-size: 12px;
    font-weight: 700;
}

.trend-suite-title {
    margin: 0 0 14px;
    font-size: 30px;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: #0f172a;
}

.trend-suite-desc {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
    color: #475569;
}

.trend-suite-flow {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.trend-suite-flow span {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(148, 163, 184, 0.18);
    font-size: 12px;
    font-weight: 700;
    color: #475569;
}

.trend-suite-side {
    display: grid;
    gap: 18px;
}

.trend-suite-stats {
    display: grid;
    gap: 14px;
}

.trend-suite-stat {
    display: grid;
    gap: 6px;
    padding: 18px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(148, 163, 184, 0.16);
}

.trend-suite-stat strong {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
}

.trend-suite-stat span {
    font-size: 13px;
    line-height: 1.7;
    color: #64748b;
}

.trend-suite-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.trend-suite-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    line-height: 1.75;
    color: #334155;
}

.trend-suite-list li::before {
    content: '•';
    color: #2bb3ff;
    font-size: 18px;
    line-height: 1;
    flex: none;
    transform: translateY(3px);
}

/* 模式卡片区域 */
.section-sp-auto {
    background: linear-gradient(180deg, #ffffff 0%, #fff8f3 100%);
}

.section-sp-manual {
    background: linear-gradient(180deg, #fff8f3 0%, #f0f7ff 100%);
}

.section-sb {
    background: linear-gradient(180deg, #f0f7ff 0%, #f8f5ff 100%);
}

.mode-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.mode-cards-3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 960px;
    margin: 0 auto;
}

.mode-card {
    background: white;
    border-radius: 20px;
    padding: 32px 28px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.mode-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: 20px 20px 0 0;
}

.mode-card-warm::before {
    background: linear-gradient(90deg, #ff9f40, #ffb347);
}

.mode-card-blue::before {
    background: linear-gradient(90deg, #4299e1, #63b3ed);
}

.mode-card-purple::before {
    background: linear-gradient(90deg, #9f7aea, #b794f4);
}

.mode-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.mode-num {
    font-size: 48px;
    font-weight: 900;
    color: rgba(0, 0, 0, 0.04);
    position: absolute;
    top: 16px;
    right: 20px;
    line-height: 1;
}

.mode-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 12px;
}

.mode-desc {
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 20px;
}

.mode-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mode-features li {
    font-size: 13px;
    color: #718096;
    padding: 8px 0;
    border-top: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 8px;
}

.mode-features li::before {
    content: '✓';
    color: #48bb78;
    font-weight: 700;
    font-size: 12px;
}

/* CTA 区域 */
.section-cta {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d3748 100%);
    padding: 80px 48px;
}

.cta-content {
    text-align: center;
}

.cta-title {
    font-size: 36px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 32px;
}

.cta-btn {
    background: linear-gradient(135deg, #ff9f40 0%, #ffb347 100%);
    color: white;
    border: none;
    padding: 18px 48px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 30px rgba(255, 159, 64, 0.4);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(255, 159, 64, 0.5);
}

/* 页脚 */
.landing-footer {
    background: #1a1a2e;
    padding: 40px 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-logo {
    font-size: 20px;
    font-weight: 700;
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-pro {
    font-size: 9px;
    font-weight: 800;
    color: #1a1a2e;
    background: linear-gradient(135deg, #ff9f40 0%, #ffb347 100%);
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 1px;
}

.footer-tagline {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 1px;
}

.footer-copy {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

/* 登录弹窗 */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.auth-modal-overlay.active {
    display: flex;
    opacity: 1;
}

.auth-modal {
    background: white;
    border-radius: 24px;
    padding: 48px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: authModalSlideIn 0.4s ease-out;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.25);
}

@keyframes authModalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.auth-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border: none;
    background: #f1f5f9;
    border-radius: 50%;
    font-size: 20px;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-modal-close:hover {
    background: #e2e8f0;
    color: #1a1a2e;
}

.auth-modal-page {
    display: none;
}

.auth-modal-page.active {
    display: block;
    animation: authFadeIn 0.3s ease;
}

.auth-modal-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-modal-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.auth-modal-header p {
    font-size: 15px;
    color: #64748b;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .growth-suite-grid {
        grid-template-columns: 1fr;
    }

    .trend-suite-card {
        grid-template-columns: 1fr;
    }

    .mode-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .mode-cards-3 {
        grid-template-columns: repeat(2, 1fr);
        max-width: 100%;
    }
}

@media (max-width: 960px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 2;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-desc {
        margin: 0 auto 36px;
    }

    .landing-nav-links .nav-link {
        display: none;
    }
}

@media (max-width: 768px) {
    .landing-nav-inner {
        padding: 0 24px;
    }

    .landing-hero {
        padding: 100px 24px 60px;
    }

    .hero-title-main {
        font-size: 42px;
    }

    .hero-title-sub {
        font-size: 20px;
    }

    .hero-card-stack {
        width: 300px;
        height: 280px;
    }

    .landing-section {
        padding: 60px 24px;
    }

    .section-title {
        font-size: 32px;
    }

    .features-grid,
    .growth-suite-stats,
    .mode-cards,
    .mode-cards-3 {
        grid-template-columns: 1fr;
    }

    .feature-card {
        padding: 28px 24px 24px;
    }

    .feature-icon-wrap {
        width: 60px;
        height: 60px;
    }

    .feature-chip {
        margin-bottom: 10px;
    }

    .growth-suite-card {
        padding: 30px 24px 24px;
    }

    .trend-suite-card {
        padding: 30px 24px 24px;
    }

    .growth-suite-top {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .trend-suite-top {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
    }

    .growth-suite-title {
        font-size: 24px;
    }

    .trend-suite-title {
        font-size: 24px;
    }

    .footer-inner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

/* ==================== 原登录/注册样式（保留给弹窗使用） ==================== */

@keyframes authPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes authFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 左侧品牌区域 */
.auth-brand {
    background: linear-gradient(135deg, #ff9f40 0%, #ffc107 50%, #ffb300 100%);
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.auth-brand::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    top: -100px;
    left: -100px;
}

.auth-brand::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    bottom: -50px;
    right: -50px;
}

.brand-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.brand-logo {
    font-size: 80px;
    margin-bottom: 30px;
    animation: authFloat 3s ease-in-out infinite;
}

@keyframes authFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.brand-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.brand-subtitle {
    font-size: 18px;
    opacity: 0.95;
    font-weight: 500;
    letter-spacing: 2px;
}

.brand-features {
    margin-top: 60px;
    text-align: left;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    font-size: 16px;
    opacity: 0.9;
}

.auth-brand .feature-icon {
    font-size: 24px;
    background: rgba(255, 255, 255, 0.2);
    width: 45px;
    height: 45px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 右侧表单区域 */
.auth-form-container {
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-header {
    margin-bottom: 40px;
}

.auth-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
}

.auth-header p {
    font-size: 16px;
    color: #64748b;
    font-weight: 400;
}

.auth-tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 35px;
    background: #f8fafc;
    padding: 6px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.auth-tab {
    flex: 1;
    padding: 14px;
    border: none;
    background: transparent;
    color: #64748b;
    font-size: 15px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.auth-tab.active {
    background: white;
    color: #ff9f40;
    box-shadow: 0 4px 12px rgba(255, 159, 64, 0.15);
}

.auth-form {
    animation: authSlideIn 0.3s ease;
}

@keyframes authSlideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 10px;
}

.required {
    color: #ef4444;
    font-weight: 700;
}

.form-group input {
    width: 100%;
    padding: 16px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s;
    background: #fafafa;
}

.form-group input:focus {
    outline: none;
    border-color: #ff9f40;
    box-shadow: 0 0 0 4px rgba(255, 159, 64, 0.1);
    background: white;
}

.form-help-text {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    line-height: 1.6;
    color: #64748b;
}

.input-with-btn {
    display: flex;
    gap: 12px;
}

.input-with-btn input {
    flex: 1;
}

.btn-code {
    padding: 16px 24px;
    background: linear-gradient(135deg, #ff9f40 0%, #ffc107 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s;
}

.btn-code:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 159, 64, 0.4);
}

.btn-code:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
    transform: none;
}

.btn-auth {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #ff9f40 0%, #ffc107 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 15px;
    transition: all 0.3s;
    box-shadow: 0 4px 14px rgba(255, 159, 64, 0.3);
}

.btn-auth:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(255, 159, 64, 0.5);
}

.btn-auth:active {
    transform: translateY(-1px);
}

.auth-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid #e2e8f0;
}

.auth-links a {
    color: #ff9f40;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    position: relative;
}

.auth-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #ff9f40 0%, #ffc107 100%);
    transition: width 0.3s;
}

.auth-links a:hover::after {
    width: 100%;
}

.auth-links a:hover {
    color: #ffb300;
}


/* 响应式设计 - 登录页面 */
@media (max-width: 1024px) {
    .auth-card {
        grid-template-columns: 1fr;
        max-width: 600px;
    }

    .auth-brand {
        padding: 40px;
        min-height: 300px;
    }

    .brand-title {
        font-size: 36px;
    }

    .brand-features {
        margin-top: 40px;
    }

    .auth-form-container {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .auth-page {
        padding: 20px;
    }

    .auth-card {
        max-width: 100%;
    }

    .auth-brand {
        padding: 30px;
    }

    .brand-logo {
        font-size: 60px;
    }

    .brand-title {
        font-size: 32px;
    }

    .brand-subtitle {
        font-size: 14px;
    }

    .auth-form-container {
        padding: 30px 25px;
    }

    .auth-header h1 {
        font-size: 26px;
    }
}

@media (max-width: 640px) {
    .landing-container {
        padding-bottom: 132px;
    }
}

/* ==================== 登录/介绍页深色模式适配 ==================== */

/* 深色模式 - 着陆页 */
[data-theme="dark"] .landing-container {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

[data-theme="dark"] .landing-nav {
    background: var(--glass-bg);
    border-bottom-color: var(--color-border);
}

[data-theme="dark"] .landing-hero {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-elevated) 50%, var(--color-surface) 100%);
}

[data-theme="dark"] .hero-title-main {
    background: linear-gradient(135deg, #F1F5F9 0%, #CBD5E1 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

[data-theme="dark"] .landing-section {
    background: var(--color-bg);
}

[data-theme="dark"] .section-title {
    color: var(--color-text-primary);
}

[data-theme="dark"] .section-desc {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .hero-desc,
[data-theme="dark"] .hero-desc-sub {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .hero-promo-strip {
    background:
        radial-gradient(circle at right top, rgba(250, 204, 21, 0.18), transparent 34%),
        linear-gradient(135deg, rgba(30, 41, 59, 0.98), rgba(15, 23, 42, 0.96));
    border-color: rgba(249, 115, 22, 0.24);
}

[data-theme="dark"] .hero-promo-strip strong {
    color: var(--color-text-primary);
}

[data-theme="dark"] .hero-promo-strip span:last-child {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .section-growth-suite {
    background:
        radial-gradient(circle at 12% 18%, rgba(255, 159, 64, 0.12), transparent 24%),
        radial-gradient(circle at 88% 22%, rgba(124, 92, 255, 0.12), transparent 22%),
        linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

[data-theme="dark"] .section-trend-suite {
    background:
        radial-gradient(circle at 14% 24%, rgba(43, 179, 255, 0.12), transparent 26%),
        radial-gradient(circle at 88% 18%, rgba(255, 159, 64, 0.12), transparent 22%),
        linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
}

[data-theme="dark"] .feature-card,
[data-theme="dark"] .mode-card,
[data-theme="dark"] .growth-suite-card,
[data-theme="dark"] .trend-suite-card {
    background: var(--color-surface);
    border-color: var(--color-border);
}

[data-theme="dark"] .feature-title,
[data-theme="dark"] .mode-title {
    color: var(--color-text-primary);
}

[data-theme="dark"] .feature-desc,
[data-theme="dark"] .mode-desc {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .feature-chip {
    background: rgba(148, 163, 184, 0.12);
    color: var(--color-text-secondary);
}

[data-theme="dark"] .growth-suite-badge,
[data-theme="dark"] .growth-stat-card,
[data-theme="dark"] .growth-suite-flow span,
[data-theme="dark"] .trend-suite-badge,
[data-theme="dark"] .trend-suite-stat,
[data-theme="dark"] .trend-suite-flow span {
    background: rgba(148, 163, 184, 0.08);
    border-color: var(--color-border);
    color: var(--color-text-secondary);
}

[data-theme="dark"] .feature-points li {
    color: var(--color-text-secondary);
    border-top-color: var(--color-border);
}

[data-theme="dark"] .growth-suite-kicker,
[data-theme="dark"] .growth-suite-desc,
[data-theme="dark"] .growth-stat-card span,
[data-theme="dark"] .growth-suite-list li,
[data-theme="dark"] .trend-suite-kicker,
[data-theme="dark"] .trend-suite-desc,
[data-theme="dark"] .trend-suite-stat span,
[data-theme="dark"] .trend-suite-list li {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .growth-suite-title,
[data-theme="dark"] .growth-stat-card strong,
[data-theme="dark"] .trend-suite-title,
[data-theme="dark"] .trend-suite-stat strong,
[data-theme="dark"] .feature-icon,
[data-theme="dark"] .hero-desc strong {
    color: var(--color-text-primary);
}

[data-theme="dark"] .hero-float-card {
    background: var(--color-surface);
    border-color: var(--color-border);
}

[data-theme="dark"] .landing-nav-links .nav-link-highlight {
    color: #ffb14a;
}

[data-theme="dark"] .section-optimizer {
    background:
        radial-gradient(circle at 16% 20%, rgba(255, 158, 44, 0.16), transparent 24%),
        radial-gradient(circle at 82% 18%, rgba(229, 123, 0, 0.14), transparent 22%),
        linear-gradient(180deg, rgba(31, 24, 18, 0.96) 0%, rgba(15, 23, 42, 1) 100%);
}

[data-theme="dark"] .section-tag-optimizer,
[data-theme="dark"] .feature-chip-optimizer,
[data-theme="dark"] .growth-suite-badge-optimizer,
[data-theme="dark"] .nav-badge-ai {
    background: linear-gradient(135deg, rgba(255, 158, 44, 0.34) 0%, rgba(229, 123, 0, 0.3) 100%);
    color: #fff3df;
    border-color: rgba(255, 177, 74, 0.18);
    box-shadow: none;
}

[data-theme="dark"] .feature-card-optimizer {
    background: linear-gradient(180deg, rgba(78, 54, 24, 0.32) 0%, rgba(30, 41, 59, 0.96) 100%);
    border-color: rgba(255, 177, 74, 0.28);
}

[data-theme="dark"] .feature-icon-wrap-optimizer,
[data-theme="dark"] .hero-float-card-optimizer {
    background: linear-gradient(135deg, rgba(255, 158, 44, 0.22) 0%, rgba(229, 123, 0, 0.16) 100%);
    border-color: rgba(255, 177, 74, 0.18);
    box-shadow: none;
}

[data-theme="dark"] .feature-icon-inverse {
    color: #fff3df;
}

[data-theme="dark"] .growth-suite-card-optimizer,
[data-theme="dark"] .growth-suite-card-optimizer-secondary {
    border-color: rgba(255, 177, 74, 0.16);
}

[data-theme="dark"] .growth-suite-card-optimizer {
    background:
        radial-gradient(circle at top right, rgba(255, 158, 44, 0.16), transparent 30%),
        linear-gradient(180deg, rgba(78, 54, 24, 0.32) 0%, rgba(30, 41, 59, 0.96) 100%);
}

[data-theme="dark"] .growth-suite-card-optimizer-secondary {
    background:
        radial-gradient(circle at top right, rgba(245, 166, 35, 0.14), transparent 30%),
        linear-gradient(180deg, rgba(70, 50, 20, 0.24) 0%, rgba(30, 41, 59, 0.96) 100%);
}

[data-theme="dark"] .growth-suite-badge-accent {
    background: rgba(255, 177, 74, 0.12);
    color: #ffcf85;
    border-color: rgba(255, 177, 74, 0.18);
}

[data-theme="dark"] .hfc-text {
    color: var(--color-text-primary);
}

/* 深色模式 - 登录页 */
[data-theme="dark"] .auth-page {
    background: var(--color-bg);
}

[data-theme="dark"] .auth-card {
    background: var(--color-surface);
    border-color: var(--color-border);
}

[data-theme="dark"] .auth-form-container {
    background: var(--color-surface);
}

[data-theme="dark"] .form-help-text {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .auth-input {
    background: var(--color-bg);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

[data-theme="dark"] .auth-input:focus {
    border-color: var(--color-primary);
}

/* 记住密码样式 */
.remember-password-group {
    margin-bottom: 0;
}

.remember-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    user-select: none;
    font-size: 14px;
    color: #666;
}

.remember-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #ff9f40;
}

.remember-checkbox:hover {
    color: #ff9f40;
}

.checkbox-label {
    font-size: 14px;
}