/* ===== 全局重置 & 基础 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #b91c1c;       /* 酱红主色 */
    --color-primary-dark: #7f1d1d;
    --color-primary-light: #ef4444;
    --color-gold: #d97706;
    --color-gold-light: #fbbf24;
    --color-dark: #1e0a0a;
    --color-dark-2: #3d1a1a;
    --color-text: #2d1b1b;
    --color-text-light: #6b4f4f;
    --color-bg: #fdf8f3;
    --color-bg-alt: #fef3e2;
    --color-white: #ffffff;
    --color-border: #e8d5c4;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-serif: 'Noto Serif SC', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul { list-style: none; }

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(30, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(30, 10, 10, 0.95);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--color-gold-light);
    letter-spacing: 2px;
}

.logo-icon {
    font-size: 1.8rem;
    color: var(--color-primary-light);
}

.nav-menu {
    display: flex;
    gap: 6px;
}

.nav-link {
    padding: 8px 16px;
    color: rgba(255,255,255,0.75);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-gold-light);
    background: rgba(255,255,255,0.06);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--color-gold);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-nav-admin {
    padding: 8px 18px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: rgba(255,255,255,0.8);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}

.btn-nav-admin:hover {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--color-dark);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.bar {
    width: 26px;
    height: 2.5px;
    background: var(--color-gold-light);
    border-radius: 4px;
    transition: var(--transition);
}

.hamburger.active .bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero 区 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e0a0a 0%, #3d1a1a 40%, #5c2a2a 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-overlay {
    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='%23d97706' 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");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 850px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 900;
    color: var(--color-gold-light);
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 40px;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
    color: var(--color-dark);
    box-shadow: 0 8px 32px rgba(217, 119, 6, 0.35);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(217, 119, 6, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--color-gold-light);
    border: 2px solid var(--color-gold-light);
}

.btn-outline:hover {
    background: var(--color-gold-light);
    color: var(--color-dark);
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--color-gold-light);
    line-height: 1;
}

.stat-plus, .stat-percent {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-left: 2px;
}

.stat-label {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    margin-top: 6px;
}

/* ===== 通用 Section ===== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--color-bg-alt);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-gold);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 900;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.section-desc {
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

/* ===== 品牌故事 ===== */
.about-section {
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h3 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    gap: 24px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--color-bg-alt);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-dark-2);
}

.about-feature i {
    color: var(--color-gold);
    font-size: 1.1rem;
}

/* ===== 产品 ===== */
.products-section {
    background: var(--color-bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-image {
    height: 220px;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--color-primary);
    color: white;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-body {
    padding: 24px;
}

.product-name {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.product-desc {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.price-current {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-original {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-decoration: line-through;
}

.product-footer {
    display: flex;
    gap: 10px;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-gold {
    background: var(--color-gold);
    color: white;
}

.btn-gold:hover {
    background: var(--color-gold-light);
    color: var(--color-dark);
}

.btn-outline-sm {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline-sm:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

/* ===== 加盟优势 ===== */
.advantage-section {
    background: var(--color-dark);
    color: white;
}

.advantage-section .section-title { color: var(--color-gold-light); }
.advantage-section .section-desc { color: rgba(255,255,255,0.6); }
.advantage-section .section-tag { background: rgba(255,255,255,0.08); color: var(--color-gold-light); }

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.advantage-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}

.advantage-card:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-4px);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: rgba(217, 119, 6, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--color-gold-light);
}

.advantage-card h4 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-gold-light);
}

.advantage-card p {
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ===== 加盟流程 ===== */
.process-section {
    background: var(--color-white);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    min-width: 160px;
    flex: 1;
    max-width: 200px;
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gold);
}

.step-number {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--color-gold);
    margin-bottom: 10px;
    line-height: 1;
}

.step-content h4 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 6px;
}

.step-content p {
    color: var(--color-text-light);
    font-size: 0.85rem;
}

.step-arrow {
    color: var(--color-gold);
    font-size: 1.4rem;
    opacity: 0.5;
}

/* ===== 新闻 ===== */
.news-section {
    background: var(--color-bg);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    height: 200px;
    background: linear-gradient(135deg, #e8d5c4, #d4b8a0);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--color-dark-2);
}

.news-body {
    padding: 24px;
}

.news-date {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-excerpt {
    color: var(--color-text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.news-link {
    color: var(--color-gold);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.news-link:hover {
    gap: 10px;
}

/* ===== 联系我们 / 表单 ===== */
.contact-section {
    background: var(--color-dark);
    color: white;
}

.contact-section .section-title { color: var(--color-gold-light); }
.contact-section .section-desc { color: rgba(255,255,255,0.6); }
.contact-section .section-tag { background: rgba(255,255,255,0.08); color: var(--color-gold-light); }

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.info-item i {
    font-size: 1.4rem;
    color: var(--color-gold);
    margin-top: 4px;
    width: 28px;
}

.info-item h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-gold-light);
    margin-bottom: 4px;
}

.info-item p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
}

.contact-form {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-gold);
    background: rgba(255,255,255,0.12);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255,255,255,0.35);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23d97706' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

.form-group select option {
    background: #2d1b1b;
    color: white;
}

/* ===== Toast 通知 ===== */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--color-dark);
    color: white;
    padding: 16px 28px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 9999;
    border-left: 4px solid var(--color-gold);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast i {
    color: var(--color-gold);
    font-size: 1.2rem;
}

/* ===== 回到顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    background: var(--color-gold);
    color: var(--color-dark);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--color-gold-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ===== 底部 ===== */
.footer {
    background: #140808;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-icon {
    font-size: 1.8rem;
    color: var(--color-gold);
}

.footer-brand h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gold-light);
    margin: 12px 0 10px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--color-gold);
    color: var(--color-dark);
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-gold-light);
    margin-bottom: 16px;
}

.footer-links ul li {
    margin-bottom: 8px;
}

.footer-links ul li a {
    color: rgba(255,255,255,0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--color-gold-light);
    padding-left: 4px;
}

.footer-contact p {
    margin-bottom: 10px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact p i {
    color: var(--color-gold);
    width: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.35);
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

.footer-bottom a:hover {
    color: var(--color-gold-light);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(30, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px 24px;
        gap: 4px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }

    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .hamburger { display: flex; }

    .hero-stats { gap: 24px; }
    .stat-number { font-size: 2rem; }

    .step { min-width: 120px; max-width: 160px; }
    .step-arrow { display: none; }
    .process-steps { gap: 16px; }

    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .products-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .section { padding: 60px 0; }
    .hero { padding: 100px 16px 60px; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-lg { width: 100%; justify-content: center; }
    .nav-container { padding: 0 16px; }
    .container { padding: 0 16px; }
    .contact-form { padding: 24px 20px; }
}