/* ===== 糖心Vlog 全站样式 ===== */
:root {
    --black: #0a0a0a;
    --dark-gray: #1a1a1a;
    --mid-gray: #2d2d2d;
    --light-gray: #888;
    --champagne: #c9a96e;
    --champagne-light: #e8d5b0;
    --white: #f5f5f5;
    --pure-white: #ffffff;
    --font-main: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background: var(--black);
    color: var(--white);
    font-family: var(--font-main);
    line-height: 1.7;
}

a { color: var(--champagne); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--champagne-light); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Header ===== */
.site-header {
    background: rgba(10,10,10,0.97);
    border-bottom: 1px solid var(--mid-gray);
    position: sticky;
    top: 0;
    z-index: 999;
    padding: 16px 0;
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.logo h1 {
    font-size: 1.6rem;
    color: var(--champagne);
    letter-spacing: 2px;
    font-weight: 600;
}
.main-nav ul { display: flex; list-style: none; gap: 24px; }
.main-nav a { color: var(--white); font-size: 0.9rem; letter-spacing: 1px; }
.main-nav a:hover { color: var(--champagne); }

/* 搜索框 */
.search-box { display: flex; gap: 8px; }
.search-box input {
    background: var(--mid-gray);
    border: 1px solid var(--champagne);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    width: 180px;
    outline: none;
}
.search-box button {
    background: var(--champagne);
    color: var(--black);
    border: none;
    padding: 6px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.3s;
}
.search-box button:hover { background: var(--champagne-light); }

/* ===== Hero Banner ===== */
.hero-banner {
    position: relative;
    height: 90vh;
    min-height: 500px;
    overflow: hidden;
}
.hero-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.hero-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.45);
    text-align: center;
    padding: 20px;
}
.hero-content h2 {
    font-size: clamp(2rem, 6vw, 4rem);
    color: var(--champagne);
    letter-spacing: 6px;
    margin-bottom: 16px;
    font-weight: 300;
}
.hero-content p {
    font-size: 1.1rem;
    color: var(--champagne-light);
    letter-spacing: 2px;
    margin-bottom: 32px;
}

/* ===== Buttons ===== */
.btn-primary {
    background: var(--champagne);
    color: var(--black);
    padding: 14px 40px;
    border-radius: 2px;
    font-size: 0.95rem;
    letter-spacing: 2px;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
    display: inline-block;
}
.btn-primary:hover { background: var(--champagne-light); color: var(--black); transform: translateY(-2px); }
.btn-secondary {
    border: 1px solid var(--champagne);
    color: var(--champagne);
    padding: 12px 36px;
    border-radius: 2px;
    font-size: 0.9rem;
    letter-spacing: 2px;
    display: inline-block;
    transition: all 0.3s;
}
.btn-secondary:hover { background: var(--champagne); color: var(--black); }

/* ===== Section ===== */
section { padding: 80px 0; }
.section-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--champagne);
    text-align: center;
    letter-spacing: 4px;
    font-weight: 300;
    margin-bottom: 50px;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 1px;
    background: var(--champagne);
    margin: 16px auto 0;
}

/* ===== Services ===== */
.services { background: var(--dark-gray); }
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 32px; }
.service-card {
    background: var(--mid-gray);
    padding: 40px 30px;
    border-left: 2px solid var(--champagne);
    transition: transform 0.3s;
}
.service-card:hover { transform: translateY(-4px); }
.service-card h3 { color: var(--champagne); font-size: 1.1rem; margin-bottom: 12px; letter-spacing: 2px; }
.service-card p { color: var(--light-gray); font-size: 0.9rem; }

/* ===== Video Grid ===== */
.videos { background: var(--black); }
.video-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.video-card { cursor: pointer; }
.video-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    aspect-ratio: 16/9;
}
.video-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
    display: block;
}
.video-card:hover .video-wrapper img { transform: scale(1.05); }
.play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.4);
    color: var(--champagne);
    font-size: 3rem;
    opacity: 0;
    transition: opacity 0.3s;
}
.video-card:hover .play-btn { opacity: 1; }
.video-card h3 { color: var(--white); font-size: 0.95rem; margin-top: 12px; font-weight: 400; letter-spacing: 1px; }
.video-stats { display: flex; gap: 16px; margin-top: 6px; }
.video-stats span { color: var(--light-gray); font-size: 0.8rem; }

/* ===== Process ===== */
.process { background: var(--dark-gray); }
.process-steps { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--white);
    font-size: 0.9rem;
    letter-spacing: 1px;
}
.step span {
    width: 56px;
    height: 56px;
    border: 1px solid var(--champagne);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--champagne);
    font-size: 1.2rem;
}

/* ===== Testimonials ===== */
.testimonials { background: var(--black); }
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.testimonial-card {
    background: var(--dark-gray);
    padding: 32px;
    border-top: 2px solid var(--champagne);
}
.testimonial-card p { color: var(--light-gray); font-style: italic; margin-bottom: 16px; font-size: 0.9rem; }
.testimonial-card span { color: var(--champagne); font-size: 0.85rem; }

/* ===== FAQ ===== */
.faq { background: var(--dark-gray); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    border-bottom: 1px solid var(--mid-gray);
    padding: 24px 0;
}
.faq-item h4 { color: var(--champagne); font-size: 1rem; margin-bottom: 10px; font-weight: 500; }
.faq-item p { color: var(--light-gray); font-size: 0.9rem; }

/* ===== Location ===== */
.location { background: var(--black); text-align: center; }
.location p { color: var(--light-gray); max-width: 600px; margin: 0 auto 32px; }

/* ===== Footer ===== */
.site-footer {
    background: var(--dark-gray);
    border-top: 1px solid var(--mid-gray);
    padding: 60px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 40px; margin-bottom: 40px; }
.footer-col h3 { color: var(--champagne); font-size: 1.2rem; margin-bottom: 16px; letter-spacing: 2px; }
.footer-col h4 { color: var(--champagne); font-size: 0.95rem; margin-bottom: 12px; }
.footer-col p, .footer-col li { color: var(--light-gray); font-size: 0.85rem; margin-bottom: 8px; }
.footer-col ul { list-style: none; }
.footer-col a { color: var(--light-gray); }
.footer-col a:hover { color: var(--champagne); }
.footer-bottom {
    border-top: 1px solid var(--mid-gray);
    padding-top: 24px;
    text-align: center;
    color: var(--light-gray);
    font-size: 0.8rem;
}
.footer-bottom p { margin-bottom: 6px; }

/* ===== About Page ===== */
.about-hero { position: relative; height: 60vh; overflow: hidden; }
.about-hero img { width: 100%; height: 100%; object-fit: cover; }
.about-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}
.about-hero-overlay h2 { color: var(--champagne); font-size: 2.5rem; letter-spacing: 6px; font-weight: 300; }
.about-content { background: var(--dark-gray); padding: 80px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text h3 { color: var(--champagne); font-size: 1.4rem; margin-bottom: 20px; font-weight: 300; letter-spacing: 2px; }
.about-text p { color: var(--light-gray); margin-bottom: 16px; }
.about-img img { width: 100%; border-radius: 2px; }

/* ===== Contact Page ===== */
.contact-section { background: var(--dark-gray); padding: 80px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h3 { color: var(--champagne); font-size: 1.2rem; margin-bottom: 24px; }
.contact-info p { color: var(--light-gray); margin-bottom: 12px; font-size: 0.9rem; }
.contact-form input,
.contact-form textarea {
    width: 100%;
    background: var(--mid-gray);
    border: 1px solid var(--champagne);
    color: var(--white);
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    outline: none;
    border-radius: 2px;
    font-family: var(--font-main);
}
.contact-form textarea { height: 140px; resize: vertical; }
.contact-form button {
    background: var(--champagne);
    color: var(--black);
    border: none;
    padding: 14px 40px;
    font-size: 0.95rem;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 2px;
    transition: background 0.3s;
}
.contact-form button:hover { background: var(--champagne-light); }

/* ===== Videos Page ===== */
.videos-page { background: var(--black); padding: 80px 0; }
.videos-page .video-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* ===== FAQ Page ===== */
.faq-page { background: var(--dark-gray); padding: 80px 0; }
.faq-page .faq-list { max-width: 900px; }

/* ===== Page Header ===== */
.page-header {
    background: var(--dark-gray);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid var(--mid-gray);
}
.page-header h2 { color: var(--champagne); font-size: 2rem; letter-spacing: 4px; font-weight: 300; }
.breadcrumb { color: var(--light-gray); font-size: 0.85rem; margin-top: 12px; }
.breadcrumb a { color: var(--champagne); }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .site-header .container { flex-direction: column; align-items: flex-start; }
    .main-nav ul { gap: 14px; flex-wrap: wrap; }
    .search-box input { width: 140px; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .hero-banner { height: 60vh; }
    .process-steps { gap: 24px; }
}
@media (max-width: 480px) {
    .video-grid { grid-template-columns: 1fr; }
    .service-grid { grid-template-columns: 1fr; }
}