@charset "utf-8";
:root {
    --color-primary: #ff6b9d;
    --color-primary-dark: #e91e63;
    --color-primary-light: #ff9ec0;
    --color-secondary: #7c4dff;
    --color-secondary-dark: #6200ea;
    --color-accent: #00e5ff;
    --color-accent-dark: #00b8d4;
    --color-bg: #faf5ff;
    --color-bg-alt: #f3e5ff;
    --color-card: #ffffff;
    --color-text: #2d2d3a;
    --color-text-light: #6e6e82;
    --color-text-muted: #9e9eb0;
    --color-border: #e8e0ef;
    --gradient-primary: linear-gradient(135deg, #ff6b9d 0%, #7c4dff 100%);
    --gradient-secondary: linear-gradient(135deg, #7c4dff 0%, #00e5ff 100%);
    --gradient-hero: linear-gradient(160deg, #faf5ff 0%, #fce4ec 40%, #ede7f6 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,107,157,0.05) 0%, rgba(124,77,255,0.05) 100%);
    --shadow-sm: 0 2px 8px rgba(124, 77, 255, 0.08);
    --shadow-md: 0 4px 20px rgba(124, 77, 255, 0.12);
    --shadow-lg: 0 8px 40px rgba(124, 77, 255, 0.18);
    --shadow-hover: 0 12px 48px rgba(255, 107, 157, 0.25);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, sans-serif;
    --font-title: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --max-width: 1200px;
    --header-height: 72px;
}
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}
body {
    font-family: var(--font-main);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
ul, ol {
    list-style: none;
}
button {
    -webkit-tap-highlight-color: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
}
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}
.section {
    padding: 100px 0;
    position: relative;
}
.section__header {
    text-align: center;
    margin-bottom: 60px;
}
.section__tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 20px;
    border-radius: 50px;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.section__title {
    font-family: var(--font-title);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}
.section__desc {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(124, 77, 255, 0.06);
    transition: box-shadow var(--transition-smooth), background var(--transition-smooth);
}
.header--scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}
.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-title);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
}
.header__logo-img {
    display: block;
    width: 36px;
    height: 36px;
    border-radius: 5px;
}
.header__nav {
    display: flex;
    align-items: center;
}
.header__nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}
.header__nav-item {
    position: relative;
}
.header__nav-link {
    display: block;
    padding: 8px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-light);
    border-radius: 50px;
    transition: color var(--transition-fast), background var(--transition-fast);
}
.header__nav-link:hover {
    color: var(--color-primary);
    background: rgba(255, 107, 157, 0.06);
}
.header__menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}
.header__menu-btn:hover {
    background: rgba(124, 77, 255, 0.06);
}
.header__download-btn {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 5px 16px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
}
.header__download-btn i {
    display: inline-flex;
    width: 16px;
    height: 16px;
}
.header__download-btn i::before {
    content: '';
    display: block;
    width: 16px;
    height: 16px;
    background: url('../icon/download.svg') center/contain no-repeat;
    filter: brightness(0) invert(1);
}
.header__menu-icon {
    display: block;
    width: 22px;
    height: 22px;
}
.header__menu-icon i {
    display: block;
    width: 22px;
    height: 22px;
}
.header__menu-icon i::before {
    content: '';
    display: block;
    width: 22px;
    height: 22px;
    background: url('../icon/menu.svg') center/contain no-repeat;
    transition: opacity var(--transition-fast);
}
.header__menu-icon--close i::before {
    background-image: url('../icon/close.svg');
}
@media (max-width: 768px) {
    .header__nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: var(--shadow-lg);
        overflow: hidden;
        z-index: 998;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease;
    }
    .header__nav--mobile-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .header__nav-list {
        flex-direction: column;
        padding: 8px 16px;
        gap: 2px;
    }
    .header__nav-link {
        display: block;
        padding: 14px 18px;
        font-size: 1.05rem;
        font-weight: 500;
        color: var(--color-text);
        border-radius: var(--radius-md);
    }
    .header__nav-link:hover {
        background: var(--gradient-card);
        color: var(--color-primary);
    }
}
.hero {
    padding: calc(var(--header-height) + 60px) 0 80px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 107, 157, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 77, 255, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}
.hero__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.hero__content {
    animation: fadeInUp 0.8s ease-out;
}
.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 107, 157, 0.1);
    color: var(--color-primary-dark);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: 50px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 107, 157, 0.2);
}
.hero__badge i {
    display: inline-flex;
    width: 16px;
    height: 16px;
}
.hero__badge i::before {
    content: '';
    display: block;
    width: 16px;
    height: 16px;
    background: url('../icon/star.svg') center/contain no-repeat;
}
.hero__title {
    font-family: var(--font-title);
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    color: var(--color-text);
}
.hero__title-highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero__desc {
    font-size: 1.15rem;
    color: var(--color-text-light);
    margin-bottom: 20px;
    max-width: 480px;
    line-height: 1.8;
}
.hero__update {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
    padding: 8px 16px;
    background: rgba(255, 107, 157, 0.08);
    border-radius: 50px;
    margin-bottom: 28px;
}
.hero__update i {
    display: inline-flex;
    width: 16px;
    height: 16px;
}
.hero__update i::before {
    content: '';
    display: block;
    width: 16px;
    height: 16px;
    background: url('../icon/star.svg') center/contain no-repeat;
}
.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    opacity: 0;
    transition: opacity var(--transition-fast);
}
.btn:active::after {
    opacity: 1;
}
.btn:active {
    transform: scale(0.96);
}
.btn--primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 6px 24px rgba(255, 107, 157, 0.35);
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(255, 107, 157, 0.45);
}
.btn--outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn--outline:hover {
    background: rgba(255, 107, 157, 0.06);
    border-color: var(--color-primary-dark);
    color: var(--color-primary-dark);
    transform: translateY(-2px);
}
.btn--outline i {
    display: inline-flex;
    width: 18px;
    height: 18px;
}
.btn--outline i::before {
    content: '';
    display: block;
    width: 18px;
    height: 18px;
    background: url('../icon/arrow-right.svg') center/contain no-repeat;
}
.btn--primary--heart i::before {
    background: url('../icon/heart.svg') center/contain no-repeat;
}
.btn--lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}
.btn i {
    display: inline-flex;
    width: 20px;
    height: 20px;
}
.btn--primary i::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: url('../icon/download.svg') center/contain no-repeat;
    filter: brightness(0) invert(1);
}
.btn--primary--heart i::before {
    background: url('../icon/heart.svg') center/contain no-repeat;
}
.hero__visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: fadeInRight 0.8s ease-out;
}
.hero__mockup {
    width: 300px;
    height: auto;
    max-height: 560px;
    border-radius: 5px;
    box-shadow: var(--shadow-hover);
    object-fit: cover;
}
.hero__float-card {
    position: absolute;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 16px 20px;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: float 3s ease-in-out infinite;
}
.hero__float-card i {
    display: inline-flex;
    width: 24px;
    height: 24px;
}
.hero__float-card i::before {
    content: '';
    display: block;
    width: 24px;
    height: 24px;
    background: url('../icon/star.svg') center/contain no-repeat;
}
.hero__float-card--top {
    top: 10%;
    right: -20px;
    animation-delay: 0s;
}
.hero__float-card--bottom {
    bottom: -10px;
    left: -20px;
    animation-delay: 1.5s;
}
.features {
    background: #fff;
    position: relative;
}
.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.feature-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    text-align: center;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.feature-card:hover::before {
    opacity: 1;
}
.feature-card__icon {
    display: inline-flex;
    width: 64px;
    height: 64px;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: transform var(--transition-smooth), background var(--transition-smooth);
}
.feature-card:hover .feature-card__icon {
    transform: scale(1.1) rotate(-5deg);
    background: var(--gradient-primary);
}
.feature-card__icon i {
    display: inline-flex;
    width: 30px;
    height: 30px;
    transition: filter var(--transition-smooth);
}
.feature-card__icon i::before {
    content: '';
    display: block;
    width: 30px;
    height: 30px;
    transition: filter var(--transition-smooth);
}
.feature-card:hover .feature-card__icon i::before {
    filter: brightness(0) invert(1);
}
.feature-card__icon--heart i::before {
    background: url('../icon/heart.svg') center/contain no-repeat;
}
.feature-card__icon--device i::before {
    background: url('../icon/device.svg') center/contain no-repeat;
}
.feature-card__icon--speed i::before {
    background: url('../icon/speed.svg') center/contain no-repeat;
}
.feature-card__icon--shield i::before {
    background: url('../icon/shield.svg') center/contain no-repeat;
}
.feature-card__icon--star i::before {
    background: url('../icon/star.svg') center/contain no-repeat;
}
.feature-card__icon--download i::before {
    background: url('../icon/download.svg') center/contain no-repeat;
}
.feature-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-text);
}
.feature-card__desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.7;
}
.stats {
    background: var(--gradient-primary);
    padding: 50px 0;
    position: relative;
    overflow: hidden;
}
.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}
.stat-item {
    text-align: center;
    color: #fff;
}
.stat-item__number {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 6px;
    font-family: var(--font-title);
}
.stat-item__label {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 500;
}
.recommend {
    background: var(--color-bg);
}
.recommend__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.recommend-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-smooth);
}
.recommend-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.recommend-card__cover {
    height: 180px;
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    padding: 12px;
    overflow: hidden;
}
.recommend-card__cover img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.recommend-card__rank {
    display: inline-block;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
    letter-spacing: 0.05em;
    backdrop-filter: blur(4px);
}
.recommend-card__body {
    padding: 20px 22px;
}
.recommend-card__title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--color-text);
}
.recommend-card__author {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    margin-bottom: 10px;
}
.recommend-card__stars {
    display: flex;
    gap: 2px;
    margin-bottom: 10px;
}
.recommend-card__stars i {
    display: inline-flex;
    width: 15px;
    height: 15px;
}
.recommend-card__stars i::before {
    content: '';
    display: block;
    width: 15px;
    height: 15px;
    background: url('../icon/star.svg') center/contain no-repeat;
}
.recommend-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}
.recommend-card__tags span {
    display: inline-block;
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 50px;
    background: var(--gradient-card);
    color: var(--color-primary);
    font-weight: 500;
}
.recommend-card__desc {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.6;
}
.faq {
    background: #fff;
}
.faq__list {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    background: #fff;
    transition: all var(--transition-smooth);
    overflow: hidden;
}
.faq-item--active {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-sm);
}
.faq-item__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    gap: 16px;
    transition: background var(--transition-fast);
}
.faq-item__header:hover {
    background: var(--gradient-card);
}
.faq-item__question {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    flex: 1;
}
.faq-item__icon {
    display: inline-flex;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition-smooth);
}
.faq-item__icon i {
    display: block;
    width: 20px;
    height: 20px;
}
.faq-item__icon i::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: url('../icon/arrow-down.svg') center/contain no-repeat;
}
.faq-item--active .faq-item__icon {
    transform: rotate(180deg);
}
.faq-item__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-smooth), padding var(--transition-smooth);
}
.faq-item__answer {
    padding: 0 24px 20px;
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
}
.reviews {
    background: #fff;
}
.reviews__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}
.review-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    transition: all var(--transition-smooth);
}
.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}
.review-card__stars {
    display: flex;
    gap: 3px;
    margin-bottom: 14px;
}
.review-card__stars i {
    display: inline-flex;
    width: 18px;
    height: 18px;
}
.review-card__stars i::before {
    content: '';
    display: block;
    width: 18px;
    height: 18px;
    background: url('../icon/star.svg') center/contain no-repeat;
}
.review-card__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 18px;
    min-height: 80px;
}
.review-card__user {
    display: flex;
    align-items: center;
    gap: 12px;
}
.review-card__avatar {
    display: inline-flex;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
}
.review-card__avatar i {
    display: block;
    width: 42px;
    height: 42px;
}
.review-card__avatar i::before {
    content: '';
    display: block;
    width: 42px;
    height: 42px;
    background: url('../icon/avatar.svg') center/contain no-repeat;
}
.review-card__user-info {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.review-card__user strong {
    font-size: 0.95rem;
    color: var(--color-text);
}
.review-card__user-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}
.cta {
    background: var(--gradient-primary);
    padding: 70px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='40' cy='40' r='3'/%3E%3Ccircle cx='10' cy='10' r='2'/%3E%3Ccircle cx='70' cy='20' r='2'/%3E%3Ccircle cx='20' cy='70' r='2'/%3E%3Ccircle cx='60' cy='60' r='3'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.cta__inner {
    position: relative;
    z-index: 1;
}
.cta__title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.cta__desc {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 36px;
}
.cta__btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 44px;
    background: #fff;
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    transition: all var(--transition-smooth);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.15);
}
.cta__btn:active {
    transform: scale(0.95);
}
.cta__btn i {
    display: inline-flex;
    width: 20px;
    height: 20px;
}
.cta__btn i::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: url('../icon/download.svg') center/contain no-repeat;
}
.footer {
    background: #1a1a2e;
    color: #c4c4d4;
    padding: 60px 0 30px;
}
.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}
.footer__brand-icon {
    display: inline-flex;
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
}
.footer__brand-icon i {
    display: block;
    width: 20px;
    height: 20px;
}
.footer__brand-icon i::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: url('../icon/logo.svg') center/contain no-repeat;
    filter: brightness(0) invert(1);
}
.footer__about {
    font-size: 0.9rem;
    line-height: 1.8;
    color: #9494a8;
    max-width: 300px;
}
.footer__col-title {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
}
.footer__links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer__links a {
    font-size: 0.9rem;
    color: #9494a8;
    transition: color var(--transition-fast);
}
.footer__links a:hover {
    color: var(--color-primary);
}
.footer__social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}
.footer__social a {
    display: inline-flex;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-smooth);
}
.footer__social a:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
}
.footer__social i {
    display: inline-flex;
    width: 18px;
    height: 18px;
    filter: brightness(0) invert(0.6);
}
.footer__social i::before {
    content: '';
    display: block;
    width: 18px;
    height: 18px;
}
.footer__icon--twitter::before {
    background: url('../icon/twitter.svg') center/contain no-repeat;
}
.footer__icon--instagram::before {
    background: url('../icon/instagram.svg') center/contain no-repeat;
}
.footer__icon--github::before {
    background: url('../icon/github.svg') center/contain no-repeat;
}
.footer__icon--mail::before {
    background: url('../icon/mail.svg') center/contain no-repeat;
}
.footer__social a:hover i::before {
    filter: brightness(0) invert(1);
}
.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.85rem;
    color: #707088;
}
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-up--visible {
    opacity: 1;
    transform: translateY(0);
}
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-md);
    cursor: pointer;
}
.back-to-top--visible {
    opacity: 1;
    pointer-events: auto;
}
.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.back-to-top i {
    display: inline-flex;
    width: 20px;
    height: 20px;
}
.back-to-top i::before {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background: url('../icon/arrow-down.svg') center/contain no-repeat;
    filter: brightness(0) invert(1);
    transform: rotate(180deg);
}

/* 评论星星样式开始 */
.aiarticle-comment-rating-icon{
    display:inline-block !important;
    width:auto !important;
    height:auto !important;
    margin-right:2px;
    color:#ffb400 !important;
    font-style:normal !important;
    font-weight:normal !important;
    line-height:1 !important;
    vertical-align:middle;
    text-decoration:none !important;
}

.aiarticle-comment-rating-icon:before{
    font-family:Arial,"Segoe UI Symbol","Noto Sans Symbols","Microsoft YaHei",sans-serif !important;
    font-style:normal !important;
    font-weight:normal !important;
    line-height:1 !important;
}

.aiarticle-comment-rating-icon.fa-star:before{
    content:"\2605" !important;
}

.aiarticle-comment-rating-icon.fa-star-o:before{
    content:"\2606" !important;
}

.aiarticle-comment-rating-icon:last-child{
    margin-right:0;
}
/* 评论星星样式结束 */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 157, 0.4); }
    50% { box-shadow: 0 0 0 16px rgba(255, 107, 157, 0); }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
@media (max-width: 1024px) {
    .hero__inner {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero__desc {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }
    .hero__actions {
        justify-content: center;
    }
    .hero__visual {
        order: -1;
    }
    .hero__mockup {
        width: 220px;
        max-height: 420px;
    }
    .hero__float-card {
        display: none;
    }
    .hero__title {
        font-size: 2.4rem;
    }
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .recommend__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }
    .section__title {
        font-size: 2rem;
    }
    .cta__title {
        font-size: 2rem;
    }
}
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    .container {
        padding: 0 16px;
    }
    .section {
        padding: 60px 0;
    }
    .header__menu-btn {
        display: flex;
    }
    .header__download-btn {
        display: inline-flex;
    }
    .hero {
        padding: calc(var(--header-height) + 30px) 0 50px;
    }
    .hero__title {
        font-size: 1.9rem;
    }
    .hero__desc {
        font-size: 1rem;
    }
    .hero__mockup {
        width: 180px;
        max-height: 340px;
    }
    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
    .hero__actions .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    .features__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    .recommend__grid {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: 16px;
        padding-bottom: 8px;
        margin: 0;
        max-width: none;
        grid-template-columns: unset;
    }
    .recommend__grid::-webkit-scrollbar {
        display: none;
    }
    .recommend-card {
        flex: 0 0 260px;
        scroll-snap-align: start;
    }
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .stat-item__number {
        font-size: 2rem;
    }
    .faq-item__header {
        padding: 16px 18px;
    }
    .faq-item__question {
        font-size: 0.95rem;
    }
    .cta__title {
        font-size: 1.6rem;
    }
    .cta__desc {
        font-size: 0.95rem;
    }
    .cta__btn {
        padding: 16px 32px;
        font-size: 1rem;
    }
    .reviews__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    .review-card__text {
        min-height: auto;
    }
    .footer__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    .footer__col:first-child {
        grid-column: 1 / -1;
    }
    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }
    .section__title {
        font-size: 1.6rem;
    }
    .section__desc {
        font-size: 0.95rem;
    }
    .section__header {
        margin-bottom: 36px;
    }
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
    .btn--lg {
        padding: 16px 28px;
        font-size: 1rem;
    }
}
@media (max-width: 480px) {
    .hero__title {
        font-size: 1.6rem;
    }
    .hero__mockup {
        width: 150px;
        max-height: 280px;
    }
    .stats__grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .stat-item__number {
        font-size: 1.6rem;
    }
    .stat-item__label {
        font-size: 0.8rem;
    }
    .section__title {
        font-size: 1.4rem;
    }
    .cta__title {
        font-size: 1.4rem;
    }
}