/* ============================================================
   style.css - 兴华炬服饰独立站样式 (诗人·浪漫·温馨风格)
   配色：奶油白、暖杏、雾粉、灰绿、淡棕
   ============================================================ */
:root {
    /* 新增：主背景色彩 */
    --color-white: #ffffff;
    --color-warm-white: #fdfbf7;      /* 暖调米白，替代原 off-white */
    --color-cream: #f9f6f0;           /* 奶油白 */
    --color-blush: #faf5f3;           /* 浅杏粉 */
    --color-soft-green: #f4f7f4;      /* 极淡灰绿 */
    --color-light-gray: #f0ede8;      /* 暖灰底 */
    --color-border: #e2ddd6;          /* 柔和边框 */
    --color-mid-gray: #9b958c;        /* 暖灰中调 */
    --color-dark-gray: #5e5a54;       /* 暖深灰 */
    --color-charcoal: #3b3833;        /* 暖炭灰 */
    --color-near-black: #2b2823;      /* 近黑暖调 */
    --color-black: #1a1815;

    /* 强调色：干枯玫瑰/陶土色系 */
    --color-accent: #c87a6e;          /* 暖陶土粉 */
    --color-accent-dark: #a85d53;     /* 深玫瑰 */
    --color-accent-light: #f1ddd8;    /* 极浅粉 */
    --color-accent-bg: rgba(200, 122, 110, 0.08);

    /* 字体 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.375rem;
    --font-size-xl: 1.75rem;
    --font-size-2xl: 2.25rem;
    --font-size-hero: clamp(2.2rem, 5vw, 3.8rem);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    --spacing-section: clamp(4rem, 8vw, 7rem);

    --nav-height: 72px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.05);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.06);
    --transition-fast: 0.2s ease;
    --transition-base: 0.35s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-charcoal);
    background: var(--color-warm-white);
    overflow-x: hidden;
}

::selection { background: var(--color-accent); color: #fff; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition-fast); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; border: none; outline: none; }

.section-container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-md); }
.section-header { text-align: center; margin-bottom: var(--spacing-xl); }
.section-tag {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    padding: 4px 14px;
    border: 1px solid var(--color-accent-light);
    border-radius: var(--radius-full);
    background: var(--color-accent-bg);
}
.section-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-near-black);
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}
.section-desc {
    font-size: var(--font-size-md);
    color: var(--color-dark-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 13px 30px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}
.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border: 2px solid var(--color-accent);
}
.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn-outline {
    background: transparent;
    color: var(--color-charcoal);
    border: 2px solid var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}
.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 15px 30px;
}

/* 导航 */
.nav-header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    background: rgba(253, 251, 247, 0.92); /* 暖白半透明 */
    backdrop-filter: blur(12px);
    height: var(--nav-height);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}
.nav-header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.nav-logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.logo-text {
    font-weight: 700;
    font-size: var(--font-size-md);
    color: var(--color-near-black);
    letter-spacing: 0.05em;
}
.logo-sub {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-mid-gray);
    letter-spacing: 0.08em;
}
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark-gray);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.nav-link:hover, .nav-link.active { color: var(--color-accent); background: var(--color-accent-bg); }
.nav-link-cta {
    background: var(--color-accent);
    color: #fff !important;
    padding: 10px 20px;
    margin-left: 8px;
}
.nav-link-cta:hover { background: var(--color-accent-dark); }
.nav-actions { display: flex; align-items: center; gap: var(--spacing-sm); }
.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 6px 10px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-dark-gray);
    transition: all var(--transition-fast);
}
.lang-option { transition: color 0.2s; }
.lang-option.active-lang { color: var(--color-accent); }
.lang-divider { color: var(--color-mid-gray); }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.hamburger-line {
    width: 22px; height: 2px;
    background: var(--color-near-black);
    transition: all var(--transition-base);
    border-radius: 2px;
}
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height); left: 0; width: 100%;
    background: rgba(253, 251, 247, 0.97);
    backdrop-filter: blur(20px);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    gap: 4px;
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
}
.mobile-menu.open {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}
.mobile-nav-link {
    padding: 14px 20px;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-dark-gray);
    border-radius: var(--radius-md);
}
.mobile-nav-link:hover { background: var(--color-light-gray); color: var(--color-accent); }
.mobile-nav-cta { background: var(--color-accent); color: #fff !important; text-align: center; margin-top: 8px; }

/* Hero (使用浅杏粉背景，叠加柔光渐变) */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--color-blush);
    overflow: hidden;
    padding: calc(var(--nav-height) + var(--spacing-xl)) var(--spacing-md) var(--spacing-2xl);
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 25% 40%, rgba(200,122,110,0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 75% 60%, rgba(122,110,100,0.03) 0%, transparent 50%);
}
.hero-content { position: relative; z-index: 2; max-width: 750px; }
.hero-eyebrow {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent-dark);
    margin-bottom: var(--spacing-md);
}
.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 700;
    color: var(--color-near-black);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}
.hero-highlight { color: var(--color-accent); }
.hero-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-dark-gray);
    line-height: 1.7;
    max-width: 520px;
    margin: 0 auto var(--spacing-lg);
}
.hero-actions { display: flex; gap: var(--spacing-sm); justify-content: center; flex-wrap: wrap; }
.scroll-indicator { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2; }
.scroll-dot {
    display: block;
    width: 8px; height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
    0%,100% { opacity: 0.3; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(8px); }
}

/* 产品系列 (奶油白) */
.products-section {
    padding: var(--spacing-section) 0;
    background: var(--color-cream);
}
.filter-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-xl);
}
.filter-tab {
    padding: 8px 22px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-dark-gray);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: var(--color-warm-white);
    transition: all var(--transition-fast);
}
.filter-tab:hover { border-color: var(--color-accent); color: var(--color-accent); }
.filter-tab.active { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid var(--color-border);
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.product-card-image {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-light-gray);
}
.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card:hover .product-card-image img { transform: scale(1.04); }
.product-card-badge {
    position: absolute;
    top: 12px; left: 12px;
    padding: 4px 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: rgba(255,255,255,0.9);
    color: var(--color-accent);
    border-radius: var(--radius-full);
}
.product-card-body { padding: var(--spacing-md); }
.product-card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-near-black);
    margin-bottom: 4px;
}
.product-card-desc {
    font-size: var(--font-size-sm);
    color: var(--color-dark-gray);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 关于我们 (浅杏粉) */
.about-section {
    padding: var(--spacing-section) 0;
    background: var(--color-blush);
}
.about-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}
.about-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--color-light-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.about-image-placeholder img { width: 100%; height: 100%; object-fit: cover; }
.about-title { text-align: left; }
.about-paragraph {
    font-size: var(--font-size-base);
    color: var(--color-dark-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}
.about-highlight {
    font-weight: 500;
    color: var(--color-accent-dark);
    padding-left: 16px;
    border-left: 3px solid var(--color-accent);
}

/* 经营理念 (极淡灰绿) */
.philosophy-section {
    padding: var(--spacing-section) 0;
    background: var(--color-soft-green);
}
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}
.philosophy-card {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}
.philosophy-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.philosophy-icon {
    font-size: 2.2rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}
.philosophy-card-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-near-black);
    margin-bottom: var(--spacing-xs);
}
.philosophy-card-desc {
    font-size: var(--font-size-sm);
    color: var(--color-dark-gray);
    line-height: 1.6;
}

/* 联系区域 (奶油白) */
.contact-section {
    padding: var(--spacing-section) 0;
    background: var(--color-cream);
}
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}
.contact-form-wrapper {
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.contact-form { display: flex; flex-direction: column; gap: var(--spacing-md); }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-near-black);
}
.form-input {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
    color: var(--color-charcoal);
    background: var(--color-warm-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.form-input:focus {
    border-color: var(--color-accent);
    background: #fff;
    box-shadow: 0 0 0 3px var(--color-accent-bg);
}
.form-textarea { resize: vertical; min-height: 120px; }
.form-error {
    font-size: var(--font-size-xs);
    color: #c0392b;
    display: none;
}
.form-group.error .form-input { border-color: #c0392b; background: #fef8f8; }
.form-group.error .form-error { display: block; }
.form-success { text-align: center; padding: var(--spacing-xl); }
.success-icon { font-size: 2.5rem; color: #27ae60; margin-bottom: var(--spacing-md); }

.contact-info-panel {
    background: #fff;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}
.contact-info-heading {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-near-black);
    margin-bottom: var(--spacing-md);
}
.contact-info-list { display: flex; flex-direction: column; gap: var(--spacing-sm); margin-bottom: var(--spacing-lg); }
.contact-info-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-dark-gray);
}
.contact-info-list li i { color: var(--color-accent); width: 1.2em; }
.social-heading { font-size: var(--font-size-sm); font-weight: 600; margin-bottom: var(--spacing-sm); color: var(--color-near-black); }
.social-icons { display: flex; gap: var(--spacing-sm); }
.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--color-light-gray);
    color: var(--color-dark-gray);
    transition: all var(--transition-fast);
    font-size: 1.2rem;
}
.social-icon:hover { background: var(--color-accent); color: #fff; transform: translateY(-3px); }

/* 产品详情页 */
.product-detail-page { padding-top: var(--nav-height); }
.breadcrumb {
    padding: var(--spacing-md) 0;
    background: var(--color-blush);
    border-bottom: 1px solid var(--color-border);
}
.breadcrumb .section-container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--color-dark-gray); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb-sep { color: var(--color-mid-gray); }
.detail-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
    margin-top: var(--spacing-lg);
}
.detail-image-large {
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-light-gray);
}
.detail-image-large img { width: 100%; height: 100%; object-fit: cover; }
.detail-category-tag {
    display: inline-block;
    padding: 5px 14px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    background: var(--color-accent-bg);
    color: var(--color-accent);
    border-radius: var(--radius-full);
}
.detail-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-near-black);
    margin: var(--spacing-sm) 0;
}
.detail-desc { font-size: var(--font-size-md); color: var(--color-dark-gray); line-height: 1.8; }
.detail-specs {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-md);
}
.detail-specs th, .detail-specs td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
}
.detail-specs th { font-weight: 600; color: var(--color-near-black); background: var(--color-warm-white); width: 35%; }
.detail-actions {
    margin-top: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
}
.related-products { padding-top: var(--spacing-xl); border-top: 1px solid var(--color-border); margin-top: var(--spacing-xl); }
.related-title { font-size: var(--font-size-lg); font-weight: 600; text-align: center; margin-bottom: var(--spacing-lg); }
.detail-contact { margin-top: var(--spacing-xl); }

/* 页脚 */
.site-footer {
    background: var(--color-near-black);
    color: var(--color-mid-gray);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-md); }
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}
.footer-logo {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: #fff;
    display: block;
    margin-bottom: var(--spacing-sm);
}
.footer-desc { font-size: var(--font-size-sm); color: var(--color-mid-gray); max-width: 280px; }
.footer-heading {
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: var(--spacing-sm);
}
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a, .footer-contact-list li { font-size: var(--font-size-sm); color: var(--color-mid-gray); }
.footer-links a:hover { color: #fff; }
.footer-contact-list li i { margin-right: 6px; color: var(--color-accent-light); }
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.08);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}
.footer-copy { font-size: var(--font-size-xs); }
.legal-divider { color: rgba(255,255,255,0.2); margin: 0 6px; }

/* 响应式 */
@media (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .philosophy-grid { grid-template-columns: repeat(2, 1fr); }
    .about-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
    .detail-layout { grid-template-columns: 1fr; }
}
@media (max-width: 767px) {
    :root { --nav-height: 60px; }
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .products-grid { grid-template-columns: 1fr; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .detail-actions { flex-direction: column; }
    .hero-title { font-size: clamp(1.6rem, 7vw, 2.4rem); }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn { width: 100%; justify-content: center; }
}
/* 视频模块样式 - 完美替代原有图片占位 */
.about-video-wrapper {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-light-gray);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.about-video {
    width: 100%;
    height: 100%;
    object-fit: cover;      /* 保证视频填满容器，无黑边 */
    display: block;
    transition: transform 0.5s ease;
}

.about-video-wrapper:hover .about-video {
    transform: scale(1.02); /* 极轻微放大，增强沉浸感 */
}

/* 滚动动画统一：让视频区域也享受入场动画 */
.about-image-area div,   /* 兼容原图片区域或新视频区域 */
.about-video-wrapper {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
/* GSAP 会动态添加类，此处的初始样式可保证JS未加载时平稳 */