/**
 * index.php 页面专用样式
 * 从内联样式提取而来
 */

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

/* 统一色彩系统 - 活力渐变风格 */
:root {
    /* 主色调 - 深蓝/黑色系（专业、现代） */
    --primary-900: #0a0a0a;
    --primary-800: #1a1a2e;
    --primary-700: #16213e;
    --primary-600: #0f3460;
    --primary-500: #533483;
    --primary-400: #e94560;
    --primary-300: #ff6b9d;
    --primary-200: #ffc796;
    --primary-100: #fff5f0;
    
    /* 强调色系 */
    --accent-red: #e94560;
    --accent-pink: #ff6b9d;
    --accent-orange: #ff8c42;
    --accent-blue: #4a90e2;
    
    /* 中性色 */
    --black: #0a0a0a;
    --white: #ffffff;
    --gray-900: #1a1a2e;
    --gray-800: #2d2d44;
    --gray-700: #4a4a6a;
    --gray-600: #6b6b8a;
    --gray-500: #9ca3af;
    --gray-400: #d1d5db;
    --gray-300: #e5e7eb;
    --gray-200: #f3f4f6;
    --gray-100: #f9fafb;
    --gray-50: #fafafa;
}

/* 固定滚动条占位，使 100vw 与可见区域一致，移动端「大家都在用」左右贴边 */
html {
    scrollbar-gutter: stable;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 40px);
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 0 rgba(255, 255, 255, 0.8) inset;
    border-radius: 24px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 18px 0;
    transition: box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.navbar::after {
    display: none;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(233, 69, 96, 0.2) 20%, 
        rgba(255, 107, 157, 0.3) 50%, 
        rgba(233, 69, 96, 0.2) 80%, 
        transparent 100%
    );
    opacity: 0.6;
}

.nav-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.nav-logo {
    font-size: 26px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-900) 0%, var(--accent-red) 50%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-pink));
    transition: width 0.3s ease;
    border-radius: 2px;
}

.nav-logo:hover::after {
    width: 100%;
}

.nav-logo:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

/* 桌面端显示导航链接 */
.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 6px 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-pink));
    border-radius: 2px;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--accent-red);
    transform: translateY(-1px);
}

.nav-link:hover::before {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 用户菜单 */
.user-menu-wrapper {
    position: relative;
}

.user-menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.user-menu-toggle:hover {
    transform: scale(1.05);
}

.user-menu-toggle:active {
    transform: scale(0.95);
}

.user-menu-toggle.active {
    transform: scale(0.95);
}

.user-menu-toggle.active .user-avatar,
.user-menu-toggle.active .user-avatar-placeholder {
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3), 0 2px 4px rgba(233, 69, 96, 0.2);
    border-color: rgba(233, 69, 96, 0.3);
}

.user-avatar,
.user-avatar-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.user-avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 50%, var(--accent-orange) 100%);
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.user-menu-dropdown {
    position: fixed;
    top: 72px;
    right: 20px;
    min-width: 280px;
    max-width: calc(100% - 40px);
    background: #ffffff !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08) !important;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    z-index: 1002 !important;
    flex-direction: column;
    display: none;
    pointer-events: none;
    overflow: hidden;
}

.user-menu-dropdown.active {
    display: flex !important;
    pointer-events: auto !important;
}

.user-menu-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.05) 0%, rgba(255, 107, 157, 0.05) 50%, rgba(255, 140, 66, 0.05) 100%);
}

.user-menu-avatar {
    flex-shrink: 0;
}

.user-menu-avatar img,
.user-menu-avatar .user-avatar-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(233, 69, 96, 0.2);
}

.user-menu-info {
    flex: 1;
    min-width: 0;
}

.user-menu-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--gray-900);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-menu-email {
    font-size: 13px;
    color: var(--gray-600);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-menu-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 8px 0;
}

.user-menu-item {
    display: flex !important;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    color: #2d2d44 !important;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    background: transparent !important;
    width: 100%;
    text-align: left;
    cursor: pointer;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: visible;
    opacity: 1 !important;
    visibility: visible !important;
}

.user-menu-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-red), var(--accent-pink));
    transform: scaleY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 2px 2px 0;
}

.user-menu-item:last-child {
    border-bottom: none;
}

.user-menu-item:hover,
.user-menu-item:active {
    background: linear-gradient(90deg, rgba(233, 69, 96, 0.06), transparent) !important;
    color: var(--accent-red) !important;
    padding-left: 32px;
    transform: translateX(4px);
}

.user-menu-item:hover::before,
.user-menu-item:active::before {
    transform: scaleY(1);
}

.user-menu-item svg {
    flex-shrink: 0;
    stroke: currentColor;
}

.user-menu-item:last-child {
    color: #dc2626 !important;
}

.user-menu-item:last-child:hover {
    background: linear-gradient(90deg, rgba(220, 38, 38, 0.08), transparent) !important;
    color: #b91c1c !important;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .user-menu-dropdown {
        top: 62px;
        right: 10px;
        left: 10px;
        min-width: auto;
        max-width: none;
    }
    
    .user-avatar,
    .user-avatar-placeholder {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .user-menu-header {
        padding: 16px;
    }
    
    .user-menu-avatar img,
    .user-menu-avatar .user-avatar-placeholder {
        width: 44px;
        height: 44px;
    }
    
    .user-menu-name {
        font-size: 15px;
    }
    
    .user-menu-email {
        font-size: 13px;
    }
    
    .user-menu-item {
        padding: 16px 24px;
        font-size: 15px;
    }
}

.btn {
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.8);
    color: var(--primary-900);
    border: 1.5px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}


.btn-primary {
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 50%, var(--accent-orange) 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(233, 69, 96, 0.35), 0 2px 4px rgba(233, 69, 96, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}


/* Hero区域（min-height 取消，避免 PC 端顶部留空过大；高度由内容决定） */
.hero {
    min-height: auto;
    background: linear-gradient(135deg, 
        #fff5f0 0%, 
        #ffe8e0 25%, 
        #ffd6cc 50%, 
        #ffc796 75%, 
        #fff5f0 100%
    );
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(233, 69, 96, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 140, 66, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 107, 157, 0.08) 0%, transparent 60%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 112px clamp(24px, 4vw, 40px) 64px;
    position: relative;
    overflow: hidden;
}

/* PC：左右分栏；移动：上下（文案上、手机下）由下方 media 控制 */
.hero-inner {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: clamp(44px, 5.5vw, 80px);
    max-width: 1200px;
    width: 100%;
    min-width: 0;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}

.hero-content {
    flex: 0 1 auto;
    min-width: 0;
    max-width: min(540px, 100%);
    width: 100%;
    text-align: left;
    position: relative;
    z-index: 1;
    padding-right: clamp(8px, 1.2vw, 16px);
}

.hero-phone-aside {
    flex: 0 0 auto;
    width: clamp(252px, 26vw, 300px);
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-phone-mockup {
    width: 100%;
    max-width: min(292px, 100%);
    margin: 0 auto;
    filter: drop-shadow(0 24px 48px rgba(12, 74, 110, 0.18)) drop-shadow(0 8px 16px rgba(233, 69, 96, 0.12));
}

/* PC：手机模拟框略下移，避免贴顶感（移动端不生效） */
@media (min-width: 769px) {
    .hero-phone-aside {
        margin-top: 36px;
    }
}

.hero-phone-bezel {
    background: linear-gradient(145deg, #2a2a2e 0%, #121214 50%, #1e1e22 100%);
    border-radius: 36px;
    padding: 10px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.12),
        inset 0 -1px 0 rgba(0, 0, 0, 0.35);
    position: relative;
}

.hero-phone-notch {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: 36%;
    max-width: 100px;
    height: 22px;
    background: #0c0c0d;
    border-radius: 12px;
    z-index: 2;
    pointer-events: none;
}

.hero-phone-screen {
    border-radius: 28px;
    overflow: hidden;
    background: #0c0c0d;
    aspect-ratio: 390 / 844;
    position: relative;
}

.hero-phone-carousel {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-phone-carousel-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-phone-carousel-track.is-dragging {
    transition: none;
}

@media (prefers-reduced-motion: reduce) {
    .hero-phone-carousel-track {
        transition: none;
    }
}

.hero-phone-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    margin: 0;
    display: flex;
    align-items: stretch;
}

.hero-phone-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-phone-carousel-dots {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    z-index: 3;
    pointer-events: none;
}

.hero-phone-carousel-dots .hero-phone-dot {
    pointer-events: auto;
}

.hero-phone-dot {
    width: 7px;
    height: 7px;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: width 0.25s ease, background 0.25s ease;
}

.hero-phone-dot.is-active {
    width: 22px;
    background: rgba(255, 255, 255, 0.95);
}

.hero-phone-dot:focus-visible {
    outline: 2px solid var(--accent-pink);
    outline-offset: 2px;
}

.hero-eyebrow {
    margin: 0 0 14px;
    padding: 7px 14px;
    display: inline-block;
    width: fit-content;
    max-width: 100%;
    box-sizing: border-box;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--gray-600);
    line-height: 1.4;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(233, 69, 96, 0.22);
    border-radius: 999px;
    animation: fadeInUp 0.8s ease;
    box-shadow: 0 1px 2px rgba(10, 10, 10, 0.04);
}

.hero-title {
    margin: 0 0 26px;
    font-size: clamp(44px, 4.2vw, 52px);
    font-weight: 900;
    line-height: 1.18;
    letter-spacing: -0.02em;
    animation: fadeInUp 0.8s ease;
    filter: drop-shadow(0 2px 4px rgba(255, 255, 255, 0.8));
}

.hero-title-lead,
.hero-title-accent {
    display: inline;
}

.hero-title-lead {
    color: #141414;
    -webkit-text-fill-color: currentColor;
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 50%, var(--accent-orange) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-em {
    font-weight: 600;
    color: var(--accent-pink);
    letter-spacing: 0.01em;
}

.hero-subtitle {
    font-size: 17px;
    color: var(--gray-700);
    margin-bottom: 36px;
    font-weight: 400;
    line-height: 1.75;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-subtitle-line {
    display: block;
    margin-bottom: 6px;
}

.hero-subtitle-line:last-child {
    margin-bottom: 0;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: flex-start;
    align-items: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
    max-width: 100%;
    margin: 0;
}

.hero-url-input {
    flex: 1;
    min-width: 280px;
    padding: 16px 20px;
    border: 1px solid var(--gray-300);
    border-radius: 12px;
    font-size: 18px;
    color: var(--primary-900);
    background: white;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(10, 10, 10, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-url-input:focus-within {
    border-color: var(--accent-pink);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.15);
}

.hero-url-input .url-prefix {
    color: var(--primary-900);
    font-weight: 600;
    margin-right: 4px;
    flex-shrink: 0;
    white-space: nowrap;
}

.hero-url-input input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 18px;
    color: var(--gray-600);
    background: transparent;
}

.hero-url-input input::placeholder {
    color: var(--gray-400);
}

.hero-cta-btn {
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 50%, var(--accent-orange) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.hero-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(233, 69, 96, 0.5);
    background: linear-gradient(135deg, var(--accent-pink) 0%, var(--accent-orange) 100%);
}

.hero-cta-btn:focus {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
}

.hero-cta-btn svg {
    width: 20px;
    height: 20px;
}

/* Hero区域示例卡片 */
.hero-examples {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    justify-items: center;
    align-items: flex-start;
    margin-top: 60px;
    animation: fadeInUp 0.8s ease 0.6s both;
    width: 100%;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 24px;
    box-sizing: border-box;
}

.hero-example-card {
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(12, 74, 110, 0.15);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(0);
    box-sizing: border-box;
}

.hero-example-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(12, 74, 110, 0.25);
}

/* 首页「大家都在用」独立区域：背景铺满，内容由 inner 限宽 */
.hero-users-section {
    width: 100%;
    padding: 0 24px 40px;
    box-sizing: border-box;
    overflow-x: visible;
    overflow-y: visible;
    background: #fffbf9;
}

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

/* 首页「大家都在用」横向滚动用户头像（独立命名空间，避免与 card/其他页冲突） */
.hero-users {
    animation: fadeInUp 0.8s ease 0.6s both;
    width: 100%;
    max-width: 100%;
    padding: 0 24px;
    box-sizing: border-box;
}

.hero-users-title {
    font-size: 36px;
    font-weight: 600;
    color: #1a1a1a;
    text-align: center;
    margin: 0 0 24px 0;
}

.hero-users-row {
    margin-bottom: 24px;
}

.hero-users-row:last-child {
    margin-bottom: 0;
}

/* PC 端：头像滚动到内容区左右边缘时渐变淡出 */
.hero-users-wrap {
    overflow-x: hidden;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin: 0 -24px;
    min-width: 0;
    -webkit-mask-image: linear-gradient(to right, transparent 0, black 48px, black calc(100% - 48px), transparent 100%);
    mask-image: linear-gradient(to right, transparent 0, black 48px, black calc(100% - 48px), transparent 100%);
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
}

/* 无障碍：偏好减少动效时改为手动滚动，仅保留一份列表 */
@media (prefers-reduced-motion: reduce) {
    .hero-users-wrap {
        overflow-x: auto;
    }
    .hero-users-marquee-track--left,
    .hero-users-marquee-track--right {
        animation: none !important;
    }
    .hero-users-marquee-copy:last-child {
        display: none;
    }
}

.hero-users-wrap::-webkit-scrollbar {
    height: 6px;
}

.hero-users-wrap::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.06);
    border-radius: 3px;
}

.hero-users-wrap::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

/* 无限滚动轨道：两份列表并排，通过动画平移实现无缝循环 */
.hero-users-marquee-track {
    display: flex;
    width: max-content;
    box-sizing: border-box;
    gap: 48px;
    will-change: transform;
}

/* 衔接处与项间间距一致，循环不断 */
.hero-users-marquee-copy:first-child .hero-users-scroll {
    padding-right: 0;
}
.hero-users-marquee-copy:last-child .hero-users-scroll {
    padding-left: 0;
}

/* 第一行：向左滚动 */
.hero-users-marquee-track--left {
    animation: hero-users-marquee-left 50s linear infinite;
}

/* 第二行：向右滚动 */
.hero-users-marquee-track--right {
    animation: hero-users-marquee-right 50s linear infinite;
}


@keyframes hero-users-marquee-left {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes hero-users-marquee-right {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

.hero-users-marquee-copy {
    flex-shrink: 0;
}

.hero-users-scroll {
    display: flex;
    gap: 48px;
    padding: 12px 24px 0px 24px;
    width: max-content;
    box-sizing: border-box;
}

.hero-user-item {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease;
}

/* 仅在支持悬停的设备上应用 hover，避免移动端返回后出现粘滞态 */
@media (hover: hover) and (pointer: fine) {
    .btn-outline:hover {
        background: var(--primary-900);
        color: white;
        border-color: var(--primary-900);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(10, 10, 10, 0.15);
    }

    .btn-primary:hover::before {
        left: 100%;
    }

    .btn-primary:hover {
        background: linear-gradient(135deg, var(--accent-pink) 0%, var(--accent-orange) 100%);
        transform: translateY(-2px);
        box-shadow: 0 6px 24px rgba(233, 69, 96, 0.45), 0 4px 8px rgba(233, 69, 96, 0.25);
    }

    .hero-users-wrap:hover .hero-users-marquee-track {
        animation-play-state: paused;
    }

    .hero-user-item:hover {
        transform: translateY(-4px);
    }
}

.hero-user-avatar {
    position: relative;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: visible;
    border: 2px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    background: #fff;
}

.hero-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

/* VIP 标识在头像右上角，与个人主页 card 一致（120px 头像下略放大） */
.hero-user-vip-badge {
    position: absolute;
    right: -10px;
    top: -4px;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: #0f172a;
    border-radius: 999px;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.4px;
    box-shadow: 0 2px 8px rgba(249, 168, 38, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.9);
    z-index: 2;
}

.hero-user-name {
    margin-top: 10px;
    font-size: 16px;
    font-weight: 500;
    color: #1a1a1a;
    max-width: 120px;

    /* 超出两行省略，保证两行高度稳定（PC/移动端通用） */
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;

    line-height: 1.25;
    text-align: center;
}

.example-card-wrapper {
    min-height: 650px;
    height: 650px;
    padding: 40px 20px;
    border-radius: 0;
    display: flex;
    flex-direction: column;
}

.example-card-container {
    max-width: 680px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    justify-content: space-between;
}

.example-card-header {
    text-align: center;
    margin-bottom: 24px;
}

.example-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    border: 4px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    background: white;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.example-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.example-identity {
    color: white;
}

.example-name {
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.example-title {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 400;
    margin-bottom: 8px;
}

.example-url {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.example-url svg {
    width: 14px;
    height: 14px;
}

.example-contacts {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 0 20px;
}

.example-contact-item {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: default;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.example-contact-item:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: scale(1.1);
}

.example-socials {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 20px;
    flex: 1;
    justify-content: flex-start;
}

.example-social-btn {
    padding: 16px 20px;
    border-radius: 16px;
    color: white;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    transition: all 0.2s ease;
    cursor: default;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: none;
}

.example-social-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.example-social-btn svg {
    flex-shrink: 0;
}

/* 示例商品展示 */
.example-products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    padding: 0 20px;
    flex: 1;
    align-content: start;
}

.example-product-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    overflow: hidden;
    cursor: default;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.example-product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.example-product-image {
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
    background: #f5f5f5;
    position: relative;
}

.example-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.example-product-info {
    padding: 12px;
}

.example-product-title {
    font-size: 13px;
    font-weight: 600;
    color: #333;
    margin: 0 0 6px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.example-product-price {
    font-size: 16px;
    font-weight: 700;
    color: #e53e3e;
    margin-bottom: 4px;
}

.example-product-category {
    font-size: 11px;
    color: #666;
    margin-top: 2px;
}

.section-title {
    text-align: center;
    font-size: 42px;
    font-weight: 900;
    color: var(--primary-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 60px;
    font-weight: 400;
}

/* 功能说明（链接 / 商品 / 帮推），常见问题上方 */
.features-intro {
    background: #fffbf9;
    padding: 60px 24px;
    scroll-margin-top: 90px;
}

.features-intro-container {
    max-width: 1000px;
    margin: 0 auto;
}

/* 功能说明区：功能对比表 */
.feature-compare {
    margin-bottom: 64px;
}

.feature-compare-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-900);
    margin: 0 0 12px 0;
    line-height: 1.3;
    text-align: center;
}

.feature-compare-lead {
    font-size: 16px;
    line-height: 1.65;
    color: var(--gray-600);
    margin: 0 0 28px 0;
    text-align: center;
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
}

.feature-compare-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(10, 10, 10, 0.06);
}

.feature-compare-table {
    width: 100%;
    min-width: 320px;
    border-collapse: collapse;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(233, 69, 96, 0.12);
}

.feature-compare-table thead {
    background: linear-gradient(135deg, rgba(233, 69, 96, 0.08) 0%, rgba(255, 107, 157, 0.08) 100%);
}

.feature-compare-table th,
.feature-compare-table td {
    padding: 16px 18px;
    text-align: center;
    font-size: 15px;
    line-height: 1.5;
    border-bottom: 1px solid var(--gray-200);
}

.feature-compare-table thead th {
    font-weight: 700;
    color: var(--primary-900);
    border-bottom: 1px solid rgba(233, 69, 96, 0.2);
}

.feature-compare-table thead th:first-child {
    text-align: left;
}

.feature-compare-table tbody th[scope="row"] {
    text-align: left;
    font-weight: 600;
    color: var(--gray-800);
    background: #fffbf9;
}

.feature-compare-table tbody tr:last-child th,
.feature-compare-table tbody tr:last-child td {
    border-bottom: none;
}

.feature-compare-table tbody td:nth-child(3) {
    background: rgba(233, 69, 96, 0.04);
}

.feature-compare-cell {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
}

.feature-compare-cell--text-only {
    grid-template-columns: 1fr;
}

.feature-compare-text {
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
    line-height: 1.45;
}

.feature-compare-yes,
.feature-compare-x {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    line-height: 1;
    flex-shrink: 0;
    justify-self: center;
}

.feature-compare-yes {
    color: #16a34a;
    background: rgba(22, 163, 74, 0.10);
    border: 1px solid rgba(22, 163, 74, 0.25);
}

.feature-compare-x {
    color: #fff;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 100%);
    border: none;
}

@media (min-width: 769px) {
    .feature-compare {
        margin-bottom: 72px;
    }

    .feature-compare-title {
        font-size: 30px;
        margin-bottom: 14px;
    }

    .feature-compare-lead {
        font-size: 17px;
        margin-bottom: 32px;
    }

    .feature-compare-table th,
    .feature-compare-table td {
        padding: 18px 22px;
        font-size: 16px;
    }
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 64px;
}

.feature-block:last-child {
    margin-bottom: 0;
}

.feature-block--reverse {
    direction: rtl;
}

.feature-block--reverse .feature-block-media,
.feature-block--reverse .feature-block-content {
    direction: ltr;
}

.feature-block-media {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.feature-block-media img {
    width: 100%;
    height: auto;
    display: block;
    vertical-align: middle;
}

.feature-block-content {
    text-align: left;
}

.feature-block-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-900);
    margin: 0 0 16px 0;
    line-height: 1.3;
}

.feature-block-desc {
    font-size: 17px;
    line-height: 1.7;
    color: var(--gray-700);
    margin: 0;
}

/* 功能说明：仅 PC 端 — 活泼/电商营销风（渐变背景、标题强调条、图片 hover） */
@media (min-width: 769px) {
    .features-intro {
        background:
            radial-gradient(900px 220px at 10% 0%, rgba(233, 69, 96, 0.10), transparent 60%),
            radial-gradient(900px 220px at 90% 0%, rgba(255, 107, 157, 0.10), transparent 60%),
            #fffbf9;
        padding: 72px 24px;
    }

    .feature-block {
        gap: 56px;
        margin-bottom: 72px;
    }

    .feature-block-media {
        border-radius: 18px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    }

    .feature-block-media img {
        border-radius: 16px;
        transition: transform 0.25s ease;
    }

    .feature-block:hover .feature-block-media img {
        transform: scale(1.03);
    }

    .feature-block-title {
        font-size: 30px;
        line-height: 1.25;
        margin-bottom: 20px;
        position: relative;
    }

    .feature-block-title::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -10px;
        width: 84px;
        height: 4px;
        border-radius: 999px;
        background: linear-gradient(90deg, var(--accent-red), var(--accent-pink));
    }

    .feature-block-desc {
        font-size: 18px;
        line-height: 1.85;
    }
}

/* 关于我们 */
.about-section {
    padding: 80px 24px;
    background: #fffbf9;
}

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

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.about-card {
    background: white;
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 2px 12px rgba(10, 10, 10, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 100%);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(233, 69, 96, 0.15);
    border-color: var(--accent-pink);
}

.about-card:hover::before {
    transform: scaleX(1);
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.about-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 15px rgba(233, 69, 96, 0.3);
}

.about-card-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-900);
    margin: 0;
}

.about-card-body {
    color: var(--gray-600);
    line-height: 1.8;
}

/* 创始人留言 */
.founder-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.founder-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
    margin: 0;
}

/* 联系方式 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 16px;
    color: var(--primary-900);
    font-weight: 500;
}

.contact-value a {
    color: var(--accent-red);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-value a:hover {
    color: var(--accent-pink);
    text-decoration: underline;
}

/* 加入交流群 */
.group-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
    margin-bottom: 32px;
}

.group-options {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.group-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
}

.group-option:hover {
    background: white;
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.1);
    border-color: var(--accent-pink);
    transform: translateX(4px);
}

.group-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.group-info {
    flex: 1;
}

.group-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-900);
    margin-bottom: 4px;
}

.group-detail {
    font-size: 14px;
    color: var(--gray-600);
}

.group-action {
    flex-shrink: 0;
}

.group-qrcode-placeholder {
    width: 80px;
    height: 80px;
    background: white;
    border: 2px dashed var(--gray-300);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--gray-500);
    text-align: center;
    padding: 8px;
}

.group-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--accent-red) 0%, var(--accent-pink) 100%);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
    box-shadow: 0 2px 8px rgba(233, 69, 96, 0.3);
}

.group-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(233, 69, 96, 0.4);
    background: linear-gradient(135deg, var(--accent-pink) 0%, var(--accent-orange) 100%);
}

/* 页脚 */
.footer {
    background: #2d3748;
    color: white;
    padding: 60px 24px 30px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 2;
    display: block;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 返回顶部按钮 - 图标为主、文字辅助 */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 28px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    width: 52px;
    padding: 10px 0 8px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(10, 10, 10, 0.08);
    border-radius: 14px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1), 0 1px 0 rgba(255, 255, 255, 0.6) inset;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.back-to-top:hover {
    box-shadow: 0 6px 24px rgba(233, 69, 96, 0.2);
    border-color: rgba(233, 69, 96, 0.35);
}
.back-to-top:hover .back-to-top-icon {
    color: var(--accent-red);
}
.back-to-top:hover .back-to-top-text {
    color: var(--gray-800);
}
.back-to-top:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(233, 69, 96, 0.4);
}
.back-to-top-icon {
    width: 24px;
    height: 24px;
    color: var(--gray-700);
    transition: color 0.2s ease;
}
.back-to-top-text {
    font-size: 11px;
    font-weight: 500;
    color: var(--gray-600);
    line-height: 1.2;
    transition: color 0.2s ease;
}
@media (max-width: 768px) {
    .back-to-top {
        right: 16px;
        bottom: 20px;
        width: 48px;
        padding: 8px 0 6px;
        border-radius: 12px;
    }
    .back-to-top-icon {
        width: 22px;
        height: 22px;
    }
    .back-to-top-text {
        font-size: 10px;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 查看更多按钮 */
.expand-btn-wrapper {
    position: relative;
    text-align: center;
    margin: 60px auto 0;
    max-width: 400px;
}

.expand-btn-wrapper::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(10, 10, 10, 0.2), transparent);
    transform: translateY(-50%);
}

.expand-btn {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--gray-700);
    border: 1px solid rgba(10, 10, 10, 0.15);
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(10, 10, 10, 0.08);
    backdrop-filter: blur(10px);
}

.expand-btn:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--accent-pink);
    box-shadow: 0 4px 16px rgba(233, 69, 96, 0.15);
    transform: translateY(-2px);
    color: var(--accent-red);
}

.expand-btn span {
    color: var(--gray-700);
    font-weight: 600;
}

.expand-btn svg {
    width: 20px;
    height: 20px;
    color: var(--gray-600);
    transition: transform 0.3s ease;
}

.expand-btn.expanded svg {
    transform: rotate(180deg);
}

.expand-btn:hover svg {
    color: var(--accent-red);
}

/* 隐藏的内容 - 桌面端和移动端都默认隐藏 */
.help-steps .collapsible-content {
    display: none !important;
}

.help-steps.expanded .collapsible-content {
    display: flex !important;
}

/* 汉堡菜单按钮 - 美观设计（移动端） */
.hamburger-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    width: 24px;
    height: 38px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0 10px;
    z-index: 1001;
    position: relative;
    margin-left: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px;
    align-items: center;
    box-sizing: border-box;
    gap: 5px;
}

.hamburger-menu-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(233, 69, 96, 0.05);
    border-radius: 8px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hamburger-menu-toggle:hover::before {
    opacity: 1;
}

.hamburger-menu-toggle span {
    width: 100%;
    height: 2.5px;
    background: var(--primary-900);
    border-radius: 3px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 
                0 0 0 0 rgba(233, 69, 96, 0);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    display: block;
}

.hamburger-menu-toggle span::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(233, 69, 96, 0.3), transparent);
    transition: left 0.5s ease;
}

.hamburger-menu-toggle:hover span {
    background: var(--primary-900);
    box-shadow: 0 2px 4px rgba(233, 69, 96, 0.15),
                0 0 8px rgba(233, 69, 96, 0.1);
    transform: scaleX(1.08);
}

.hamburger-menu-toggle:hover span::after {
    left: 100%;
}

.hamburger-menu-toggle.active span {
    background: var(--primary-900);
}

.hamburger-menu-toggle.active {
    gap: 0;
}

.hamburger-menu-toggle.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
    background: var(--primary-900);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.hamburger-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
    background: var(--primary-900);
}

.hamburger-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
    background: var(--primary-900);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.hamburger-menu-toggle.active:hover span {
    background: var(--primary-900);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

/* 汉堡菜单下拉面板（移动端） */
.hamburger-nav-menu {
    position: fixed;
    top: 72px;
    left: 20px;
    right: 20px;
    background: #ffffff !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08) !important;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    z-index: 1002 !important;
    flex-direction: column;
    display: none;
    pointer-events: none;
}

.hamburger-nav-menu.active {
    display: flex !important;
    min-height: auto;
    pointer-events: auto !important;
}

.hamburger-nav-link {
    display: block !important;
    padding: 20px 32px;
    color: #2d2d44 !important;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: visible;
    opacity: 1 !important;
    visibility: visible !important;
    background: transparent !important;
}

.hamburger-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-red), var(--accent-pink));
    transform: scaleY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 2px 2px 0;
}

.hamburger-nav-link:last-child {
    border-bottom: none;
}

.hamburger-nav-link:hover,
.hamburger-nav-link:active {
    background: linear-gradient(90deg, rgba(233, 69, 96, 0.06), transparent);
    color: var(--accent-red);
    padding-left: 40px;
    transform: translateX(4px);
}

.hamburger-nav-link:hover::before,
.hamburger-nav-link:active::before {
    transform: scaleY(1);
}

/* 响应式 - 移动端优化 */
@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .navbar {
        padding: 12px 0;
        top: 10px;
        width: calc(100% - 20px);
        border-radius: 20px;
    }

    .navbar::after {
        display: none;
    }

    .nav-container {
        padding: 0 16px;
        flex-wrap: nowrap;
        gap: 8px;
    }
    
    .nav-logo {
        font-size: 18px;
        white-space: nowrap;
    }

    .nav-links {
        display: none;
    }

    .nav-buttons {
        gap: 8px;
        flex-wrap: nowrap;
        flex-shrink: 0;
        display: flex;
        align-items: center;
    }
    
    /* 移动端显示汉堡菜单 */
    .hamburger-menu-toggle {
        display: flex;
        width: 30px;
        height: 22px;
        margin-left: 8px;
        padding: 5px 3px;
    }
    
    .hamburger-menu-toggle span {
        height: 2.5px;
    }
    
    .hamburger-menu-toggle.active span:nth-child(1) {
        transform: translateY(9.75px) rotate(45deg);
    }
    
    .hamburger-menu-toggle.active span:nth-child(3) {
        transform: translateY(-9.75px) rotate(-45deg);
    }
    
    /* 移动端导航菜单 */
    .hamburger-nav-menu {
        top: 70px !important;
        left: 10px !important;
        right: 10px !important;
        border-radius: 16px;
        background: #ffffff !important;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15) !important;
        border: 1px solid rgba(0, 0, 0, 0.1) !important;
        z-index: 1002 !important;
    }
    
    .hamburger-nav-menu.active {
        display: flex !important;
        pointer-events: auto !important;
    }
    
    .hamburger-nav-link {
        color: #2d2d44 !important;
    }
    
    .hamburger-nav-link {
        padding: 16px 24px;
        font-size: 15px;
    }
    
    .hamburger-nav-link:hover,
    .hamburger-nav-link:active {
        padding-left: 32px;
    }
    
    .mobile-menu-toggle span {
        width: 24px;
        height: 2px;
        background: var(--primary-900);
        border-radius: 2px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        transform-origin: center;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scale(0);
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* 移动端导航菜单 */
    .mobile-nav-menu {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border-top: 1px solid rgba(10, 10, 10, 0.06);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        display: flex;
        flex-direction: column;
    }
    
    .mobile-nav-menu.active {
        max-height: 300px;
    }
    
    .mobile-nav-link {
        display: block;
        padding: 16px 24px;
        color: var(--gray-700);
        text-decoration: none;
        font-weight: 500;
        font-size: 16px;
        border-bottom: 1px solid rgba(10, 10, 10, 0.06);
        transition: all 0.2s ease;
    }
    
    .mobile-nav-link:last-child {
        border-bottom: none;
    }
    
    .mobile-nav-link:hover,
    .mobile-nav-link:active {
        background: rgba(233, 69, 96, 0.05);
        color: var(--accent-red);
    }

    .btn {
        padding: 6px 10px;
        font-size: 12px;
        white-space: nowrap;
        min-width: auto;
        flex-shrink: 0;
    }

    .btn-outline {
        padding: 6px 10px;
    }

    .btn-primary {
        padding: 6px 10px;
    }
    
    /* 确保汉堡菜单按钮有足够空间 */
    .mobile-menu-toggle {
        flex-shrink: 0;
    }

    .hero {
        min-height: auto;
        padding: 100px 16px 50px;
        box-sizing: border-box;
        overflow-x: visible;
    }

    .hero-inner {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }

    .hero-content {
        padding: 0;
        padding-right: 0;
        box-sizing: border-box;
        width: 100%;
        max-width: 100%;
        text-align: center;
    }

    .hero-phone-aside {
        width: 100%;
        max-width: 260px;
    }

    .hero-phone-mockup {
        max-width: 260px;
    }

    .hero-eyebrow {
        font-size: 12px;
        padding: 6px 12px;
        margin-bottom: 12px;
        letter-spacing: 0.05em;
    }

    .hero-title {
        font-size: 40px;
        line-height: 1.2;
        margin-bottom: 20px;
        letter-spacing: -0.02em;
    }

    .hero-subtitle {
        font-size: 16px;
        line-height: 1.6;
        margin-bottom: 32px;
    }

    .hero-cta {
        flex-direction: column;
        gap: 16px;
        width: 100%;
        max-width: 100%;
        padding: 0;
        box-sizing: border-box;
        margin: 0 auto;
        justify-content: center;
    }
    
    .hero-url-input {
        width: 100%;
        min-width: 0;
        max-width: 100%;
        padding: 18px 20px;
        font-size: 16px;
        border-radius: 14px;
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
        margin: 0;
        overflow: hidden;
    }
    
    .hero-url-input .url-prefix {
        font-size: 14px;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 40%;
    }
    
    .hero-url-input input {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        box-sizing: border-box;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
    }
    
    .hero-cta-btn {
        width: 100%;
        max-width: 100%;
        padding: 18px 32px;
        font-size: 17px;
        border-radius: 14px;
        min-height: 56px;
        justify-content: center;
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
        margin: 0;
    }

    .hero-users-section {
        padding: 0 0 32px;
    }

    .hero-users-section-inner {
        max-width: none;
    }

    /* 方案A：全宽贴边，头像仅在视口边缘才被裁切，左右对称（必须覆盖 base 的 max-width: 100%） */
    .hero-users {
        padding: 0;
        width: 100vw;
        max-width: none;
        margin-left: calc(-50vw + 50%);
        margin-right: calc(-50vw + 50%);
        box-sizing: border-box;
    }

    .hero-users-title {
        font-size: 28px;
        margin-bottom: 20px;
        padding: 0 16px;
    }

    .hero-users-row {
        width: 100%;
        max-width: none;
    }

    .hero-users-wrap {
        margin: 0;
        width: 100%;
        -webkit-mask-image: none;
        mask-image: none;
    }

    .hero-users-marquee-track {
        gap: 22px;
    }

    .hero-users-scroll {
        gap: 22px;
        padding: 0 16px;
    }

    .hero-user-avatar {
        width: 72px;
        height: 72px;
    }

    .hero-user-vip-badge {
        font-size: 10px;
        padding: 2px 6px;
    }

    .hero-user-name {
        font-size: 15px;
        max-width: 96px;
        line-height: 1.2;
    }

    .hero-examples {
        margin-top: 50px;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 0;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .hero-example-card {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: hidden;
    }

    .example-card-wrapper {
        min-height: 550px;
        height: 550px;
        padding: 32px 16px;
    }

    .example-card-container {
        gap: 0;
    }

    .example-card-header {
        margin-bottom: 20px;
    }

    .example-avatar {
        width: 80px;
        height: 80px;
        margin-bottom: 16px;
    }

    .example-avatar img {
        width: 100%;
        height: 100%;
    }

    .example-name {
        font-size: 20px;
    }

    .example-title {
        font-size: 14px;
    }

    .example-url {
        font-size: 12px;
    }

    .example-contacts {
        gap: 12px;
        margin-bottom: 20px;
        padding: 0 16px;
    }

    .example-contact-item {
        width: 40px;
        height: 40px;
    }

    .example-socials {
        gap: 10px;
        padding: 0 16px;
    }

    .example-social-btn {
        padding: 14px 18px;
        font-size: 14px;
        gap: 10px;
    }

    .example-products-grid {
        gap: 10px;
        padding: 0 16px;
    }

    .example-product-info {
        padding: 10px;
    }

    .example-product-title {
        font-size: 12px;
        margin-bottom: 4px;
    }

    .example-product-price {
        font-size: 14px;
    }

    .example-product-category {
        font-size: 10px;
    }

    .example-card-links {
        padding: 16px 20px 20px;
        gap: 10px;
    }

    .example-link {
        padding: 12px 16px;
        font-size: 14px;
    }

    .features-intro {
        padding: 48px 16px;
    }

    .feature-compare {
        margin-bottom: 48px;
    }

    .feature-compare-title {
        font-size: 24px;
    }

    .feature-compare-lead {
        font-size: 15px;
        margin-bottom: 20px;
    }

    .feature-compare-table th,
    .feature-compare-table td {
        padding: 12px 10px;
        font-size: 14px;
    }

    .feature-compare-yes {
        width: 26px;
        height: 26px;
        font-size: 13px;
    }

    .feature-compare-x {
        width: 26px;
        height: 26px;
        font-size: 13px;
    }

    .feature-compare-text {
        font-size: 13px;
    }

    .feature-compare-cell {
        grid-template-columns: 26px minmax(0, 1fr);
    }

    .feature-compare-cell--text-only {
        grid-template-columns: 1fr;
    }

    .feature-block {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 48px;
        direction: ltr;
    }

    .feature-block--reverse {
        direction: ltr;
    }

    /* 移动端：文字在前，图片在后 */
    .feature-block-media {
        order: 2;
    }

    .feature-block-content {
        order: 1;
    }

    /* 功能说明：移动端字号单独优化，阅读友好（PC 端仍为 min-width:769px 规则） */
    .feature-block-title {
        font-size: 24px;
        line-height: 1.3;
        letter-spacing: -0.02em;
        margin-bottom: 16px;
        position: relative;
    }

    .feature-block-title::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: -8px;
        width: 72px;
        height: 3px;
        border-radius: 999px;
        background: linear-gradient(90deg, var(--accent-red), var(--accent-pink));
    }

    .feature-block-desc {
        font-size: 16px;
        line-height: 1.75;
        color: var(--gray-700);
    }

    .section-title {
        font-size: 32px;
        margin-bottom: 12px;
        line-height: 1.3;
        letter-spacing: -0.02em;
    }

    .section-subtitle {
        font-size: 15px;
        margin-bottom: 40px;
        line-height: 1.6;
    }

    .help-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        margin-bottom: 40px;
    }

    .help-step {
        flex-direction: column;
        text-align: center;
        padding: 20px 16px;
    }

    .step-number {
        margin: 0 auto 12px;
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .step-content h3 {
        font-size: 16px;
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .step-content p {
        font-size: 13px;
        text-align: left;
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .help-tips {
        padding: 28px 20px;
        border-radius: 16px;
    }

    .tips-title {
        font-size: 22px;
        margin-bottom: 24px;
    }

    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .tip-item {
        padding: 14px 12px;
        font-size: 13px;
        line-height: 1.6;
    }

    .tip-item strong {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .footer {
        padding: 40px 16px 24px;
    }

    .footer-container {
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .footer-section {
        padding: 0;
    }

    .footer-section:first-child {
        grid-column: 1 / -1;
        text-align: center;
        padding-bottom: 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-section h4 {
        font-size: 16px;
        margin-bottom: 12px;
    }

    .footer-section p {
        font-size: 13px;
        line-height: 1.6;
        margin-bottom: 0;
    }

    .footer-section a {
        font-size: 13px;
        line-height: 1.8;
        display: block;
    }

    .footer-bottom {
        margin-top: 24px;
        padding-top: 20px;
        font-size: 12px;
    }

    .expand-btn-wrapper {
        margin: 40px auto 0;
        max-width: 100%;
        display: block !important; /* 确保在移动端始终显示 */
    }

    .expand-btn {
        width: 100%;
        max-width: 280px;
        padding: 14px 24px;
        font-size: 14px;
        display: inline-flex !important; /* 确保在移动端始终显示 */
    }

    .expand-btn svg {
        width: 18px;
        height: 18px;
    }

    .user-status-banner {
        top: 60px;
        padding: 10px 16px;
        font-size: 13px;
    }

    .features-intro {
        padding: 40px 12px;
    }

    .feature-block {
        gap: 20px;
        margin-bottom: 40px;
    }

    .about-section {
        padding: 60px 16px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-top: 40px;
    }

    .about-card {
        padding: 24px 20px;
        border-radius: 16px;
    }

    .about-icon {
        width: 48px;
        height: 48px;
        font-size: 24px;
    }

    .about-card-title {
        font-size: 20px;
    }

    .founder-text {
        font-size: 15px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .group-option {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }

    .group-action {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .group-qrcode-placeholder {
        width: 100px;
        height: 100px;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .hero-eyebrow {
        font-size: 11px;
        padding: 5px 10px;
        margin-bottom: 10px;
    }

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

    .hero-subtitle {
        font-size: 15px;
    }
    
    .hero {
        min-height: auto;
        padding: 100px 12px 40px;
        overflow-x: visible;
    }

    .hero-content {
        padding: 0;
        box-sizing: border-box;
        width: 100%;
        max-width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        gap: 14px;
        width: 100%;
        max-width: 100%;
        padding: 0;
        box-sizing: border-box;
        margin: 0 auto;
    }
    
    .hero-url-input {
        min-width: 0;
        width: 100%;
        max-width: 100%;
        padding: 16px 18px;
        font-size: 16px;
        border-radius: 12px;
        min-height: 52px;
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
        margin: 0;
        overflow: hidden;
    }
    
    .hero-url-input .url-prefix {
        font-size: 13px;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 35%;
    }
    
    .hero-url-input input {
        font-size: 16px;
        -webkit-appearance: none;
        appearance: none;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        box-sizing: border-box;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 1;
    }
    
    .hero-cta-btn {
        width: 100%;
        max-width: 100%;
        justify-content: center;
        padding: 16px 28px;
        font-size: 17px;
        border-radius: 12px;
        min-height: 52px;
        box-sizing: border-box;
        -webkit-appearance: none;
        appearance: none;
        margin: 0;
    }

    .hero-users-section {
        padding: 0 0 28px;
    }

    .hero-users-section-inner {
        max-width: none;
    }

    /* 方案A：全宽贴边，头像仅在视口边缘才被裁切，左右对称（必须覆盖 base 的 max-width: 100%） */
    .hero-users {
        padding: 0;
        width: 100vw;
        max-width: none;
        margin-left: calc(-50vw + 50%);
        margin-right: calc(-50vw + 50%);
        box-sizing: border-box;
    }

    .hero-users-title {
        font-size: 28px;
        margin-bottom: 16px;
        padding: 0 12px;
    }

    .hero-users-row {
        width: 100%;
        max-width: none;
    }

    .hero-users-wrap {
        margin: 0;
        width: 100%;
        -webkit-mask-image: none;
        mask-image: none;
    }

    .hero-users-marquee-track {
        gap: 18px;
    }

    .hero-users-scroll {
        gap: 18px;
        padding: 5px 12px 0px 12px;
    }

    .hero-user-avatar {
        width: 60px;
        height: 60px;
    }

    .hero-user-vip-badge {
        font-size: 10px;
        padding: 2px 6px;
    }

    .hero-user-name {
        font-size: 14px;
        max-width: 96px;
        line-height: 1.2;
    }

    .hero-examples {
        margin-top: 35px;
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
    }

    .hero-example-card {
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow: hidden;
    }
    
    .example-card-wrapper {
        padding: 24px 12px;
        box-sizing: border-box;
    }

    .section-title {
        font-size: 24px;
    }

    .help-steps,
    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .help-step {
        padding: 16px 12px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .step-content h3 {
        font-size: 15px;
    }

    .step-content p {
        font-size: 12px;
    }

}

/* 用户状态提示 */
.user-status-banner {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
    padding: 12px 24px;
    text-align: center;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    z-index: 999;
    font-size: 14px;
}

.user-status-banner a {
    color: white;
    text-decoration: underline;
    margin-left: 8px;
}