/* ============================================
   鲟抚记 - 温暖典雅风格企业网站样式
   ============================================ */

:root {
    --fog-gray: #8BA5A5;
    --warm-white: #F5F0E8;
    --gold: #C9A96E;
    --ink-black: #2C2C2C;
    --shadow: 0 10px 40px rgba(0,0,0,0.08);
    --radius: 2px;
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: "Noto Serif SC", "PingFang SC", "Microsoft YaHei", serif;
    background-color: var(--warm-white);
    color: var(--ink-black);
    line-height: 1.8;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 60px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition);
}

.site-header.scrolled {
    background: rgba(245,240,232,0.88);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0,0,0,0.06);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.6rem;
    color: var(--ink-black);
    letter-spacing: 0.1em;
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gold);
}

.logo span { color: var(--gold); }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.88rem;
    color: var(--ink-black);
    letter-spacing: 0.08em;
    position: relative;
    transition: var(--transition);
}

.nav-menu a::after {
    content: "";
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: var(--transition);
}

.nav-menu a:hover { color: var(--gold); }
.nav-menu a:hover::after { width: 100%; }

.nav-cta {
    background: var(--gold) !important;
    color: var(--warm-white) !important;
    padding: 8px 24px;
    border-radius: var(--radius);
    letter-spacing: 0.1em;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover { background: #b8954f !important; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

.nav-toggle span {
    width: 24px;
    height: 1.5px;
    background: var(--ink-black);
    transition: var(--transition);
    display: block;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(245,240,232,0.97);
    backdrop-filter: blur(20px);
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
}

.mobile-menu.active { display: flex; }

.mobile-menu a {
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    color: var(--ink-black);
}

.mobile-close {
    position: absolute;
    top: 24px;
    right: 30px;
    font-size: 2rem;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--ink-black);
}

/* ============================================
   Main Content
   ============================================ */

.main-content { min-height: 100vh; }

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    padding: 0 80px;
    background: linear-gradient(135deg,#4a6b6b 0%,#6b8f8f 30%,#8BA5A5 60%,var(--warm-white) 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content { flex: 1; position: relative; z-index: 2; max-width: 600px; text-align: center; }

.hero-logo-img {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--gold);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    margin: 0 auto 50px;
}

.hero-title {
    font-size: 7rem;
    color: var(--ink-black);
    letter-spacing: 0.2em;
    line-height: 1;
    margin-bottom: 40px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--ink-black);
    letter-spacing: 0.3em;
    margin-bottom: 20px;
}

.hero-slogan {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.hero-slogan-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: var(--ink-black);
    opacity: 0.8;
}

.hero-slogan-item strong { color: var(--gold); font-weight: 500; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--gold);
    padding: 8px 20px;
    border-radius: var(--radius);
    font-size: 0.82rem;
    letter-spacing: 0.15em;
    color: var(--ink-black);
}

.hero-badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
}

.hero-fish {
    position: absolute;
    right: 80px;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
    z-index: 1;
    opacity: 0.2;
}

/* ============================================
   Sections
   ============================================ */

.section { padding: 100px 80px; }

.section-title {
    font-size: 2.4rem;
    text-align: center;
    letter-spacing: 0.15em;
    margin-bottom: 15px;
    color: var(--ink-black);
}

.section-subtitle {
    text-align: center;
    font-size: 0.88rem;
    color: var(--fog-gray);
    letter-spacing: 0.2em;
    margin-bottom: 60px;
}

.divider-gold {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: 0 auto 60px;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   Brand Story / Timeline
   ============================================ */

.brand-story { background: var(--warm-white); }

.timeline {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 40px;
    margin-top: 20px;
}

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

.timeline-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 24px;
    filter: grayscale(20%) sepia(10%);
    transition: filter 0.3s;
}

.timeline-img:hover { filter: grayscale(0%) sepia(0%); }

.timeline-era {
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--gold);
    margin-bottom: 8px;
}

.timeline-era-name {
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
    color: var(--ink-black);
}

.timeline-text {
    font-size: 0.82rem;
    color: #555;
    line-height: 1.9;
    text-align: left;
}

/* ============================================
   Products Grid
   ============================================ */

.products { background: linear-gradient(180deg,var(--warm-white) 0%,#ede8e0 100%); }

.product-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 30px;
}

.product-card {
    background: var(--warm-white);
    border: 1px solid rgba(139,165,165,0.15);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

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

.product-img { width: 100%; height: 220px; object-fit: cover; display: block; }

.product-info { padding: 24px; }

.product-name {
    font-size: 1.15rem;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    color: var(--ink-black);
}

.product-spec {
    font-size: 0.78rem;
    color: var(--fog-gray);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.product-desc {
    font-size: 0.82rem;
    color: #666;
    line-height: 1.8;
    margin-bottom: 16px;
}

.product-price {
    font-size: 1.3rem;
    color: var(--gold);
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* ============================================
   Craftsmanship
   ============================================ */

.craftsmanship {
    background: var(--ink-black);
    color: var(--warm-white);
}

.craftsmanship .section-title { color: var(--warm-white); }
.craftsmanship .section-subtitle { color: rgba(245,240,232,0.5); }

.craft-steps {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 40px;
}

.craft-step {
    text-align: center;
    padding: 30px 20px;
    border: 1px solid rgba(201,169,110,0.2);
    border-radius: var(--radius);
    transition: var(--transition);
}

.craft-step:hover { border-color: var(--gold); }

.craft-icon {
    width: 70px;
    height: 70px;
    border: 1px solid var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
}

.craft-step-num {
    font-size: 1.6rem;
    color: var(--gold);
    margin-bottom: 12px;
    letter-spacing: 0.1em;
}

.craft-step-title {
    font-size: 1rem;
    letter-spacing: 0.15em;
    margin-bottom: 12px;
    color: var(--warm-white);
}

.craft-step-desc {
    font-size: 0.82rem;
    color: rgba(245,240,232,0.6);
    line-height: 1.9;
}

/* ============================================
   Origin Section
   ============================================ */

.origin { background: var(--warm-white); }

.origin-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 60px;
}

.origin-text p {
    font-size: 0.9rem;
    color: #555;
    line-height: 2;
    margin-bottom: 16px;
    padding-left: 16px;
    border-left: 2px solid var(--gold);
}

.origin-image-wrap { position: relative; }

.origin-image {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: var(--radius);
}

.origin-image-caption {
    text-align: center;
    margin-top: 12px;
    font-size: 0.82rem;
    color: var(--fog-gray);
    letter-spacing: 0.2em;
}

.origin-stats {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    border: 1px solid rgba(139,165,165,0.15);
    border-radius: var(--radius);
    transition: var(--transition);
}

.stat-card:hover { border-color: var(--gold); }

.stat-num {
    font-size: 2.8rem;
    color: var(--gold);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.88rem;
    color: var(--ink-black);
    letter-spacing: 0.1em;
}

.stat-sublabel {
    font-size: 0.78rem;
    color: var(--fog-gray);
    letter-spacing: 0.1em;
    margin-top: 4px;
}

/* ============================================
   Culture Grid
   ============================================ */

.culture { background: linear-gradient(180deg,#ede8e0 0%,var(--warm-white) 100%); }

.culture-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 30px;
}

.culture-card {
    display: flex;
    gap: 24px;
    padding: 24px;
    border: 1px solid rgba(139,165,165,0.12);
    border-radius: var(--radius);
    background: var(--warm-white);
    transition: var(--transition);
    align-items: flex-start;
}

.culture-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.culture-card-img {
    width: 140px;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius);
    flex-shrink: 0;
}

.culture-card-title {
    font-size: 1.05rem;
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    color: var(--ink-black);
}

.culture-card-desc {
    font-size: 0.82rem;
    color: #666;
    line-height: 1.9;
}

/* ============================================
   Team Grid
   ============================================ */

.team { background: var(--warm-white); }

.team-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 40px;
}

.team-card {
    text-align: center;
    padding: 40px 24px;
    border: 1px solid rgba(139,165,165,0.12);
    border-radius: var(--radius);
    transition: var(--transition);
}

.team-card:hover { border-color: var(--gold); }

.team-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 24px;
    border: 2px solid var(--gold);
}

.team-name {
    font-size: 1.3rem;
    letter-spacing: 0.15em;
    margin-bottom: 6px;
    color: var(--ink-black);
}

.team-title {
    font-size: 0.82rem;
    color: var(--gold);
    letter-spacing: 0.15em;
    margin-bottom: 4px;
}

.team-exp {
    font-size: 0.78rem;
    color: var(--fog-gray);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.team-bio {
    font-size: 0.82rem;
    color: #666;
    line-height: 1.9;
}

/* ============================================
   Brand IP Section
   ============================================ */

.brand-ip {
    background: var(--ink-black);
    text-align: center;
    padding: 100px 80px;
    position: relative;
    overflow: hidden;
}

.brand-ip-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,#1a3a3a 0%,#2a4a4a 40%,#3a5a5a 70%,rgba(201,169,110,0.12) 100%);
    z-index: 0;
}

.brand-ip-content { position: relative; z-index: 1; }

.brand-ip .section-title { color: var(--warm-white); font-size: 2.8rem; }
.brand-ip .section-subtitle { color: rgba(245,240,232,0.5); }

.brand-ip-art {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 80px;
    margin: 60px 0;
    flex-wrap: wrap;
}

.brand-logo {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--gold);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.brand-ip-fish { width: 300px; height: 200px; opacity: 0.4; }

.brand-ip-chr {
    font-size: 10rem;
    color: var(--gold);
    opacity: 0.25;
    line-height: 1;
}

.brand-seal {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    border: 2px solid var(--gold);
    border-radius: 4px;
    font-size: 3rem;
    color: var(--gold);
    opacity: 0.6;
    margin: 0 auto;
    transform: rotate(15deg);
}

/* ============================================
   Responsibility
   ============================================ */

.responsibility { background: linear-gradient(180deg,var(--warm-white) 0%,#ede8e0 100%); }

.resp-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
}

.resp-card {
    padding: 50px 36px;
    background: var(--warm-white);
    border: 1px solid rgba(139,165,165,0.12);
    border-radius: var(--radius);
    transition: var(--transition);
}

.resp-card:hover { border-color: var(--gold); }

.resp-icon { font-size: 2.5rem; margin-bottom: 24px; }

.resp-title {
    font-size: 1.15rem;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
    color: var(--ink-black);
}

.resp-desc {
    font-size: 0.85rem;
    color: #666;
    line-height: 1.9;
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    background: var(--ink-black);
    color: var(--warm-white);
    padding: 80px;
    text-align: center;
}

.contact-section .section-title { color: var(--warm-white); }
.contact-section .section-subtitle { color: rgba(245,240,232,0.5); }

.contact-cta-text {
    font-size: 2rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    margin-bottom: 30px;
}

.contact-btn {
    display: inline-block;
    background: var(--gold);
    color: var(--warm-white);
    text-decoration: none;
    padding: 14px 48px;
    font-size: 0.88rem;
    letter-spacing: 0.2em;
    border-radius: var(--radius);
    transition: var(--transition);
}

.contact-btn:hover { background: #b8954f; }

/* ============================================
   News Section
   ============================================ */

.news { background: var(--warm-white); }

.news-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 30px;
}

.news-card {
    background: var(--warm-white);
    border: 1px solid rgba(139,165,165,0.12);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.news-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.news-content { padding: 24px; }

.news-date {
    font-size: 0.78rem;
    color: var(--fog-gray);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.news-title {
    font-size: 1.1rem;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    color: var(--ink-black);
    line-height: 1.5;
}

.news-excerpt {
    font-size: 0.82rem;
    color: #666;
    line-height: 1.8;
}

.news-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.82rem;
    color: var(--gold);
    letter-spacing: 0.1em;
    transition: var(--transition);
}

.news-link:hover { color: #b8954f; }

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background: var(--ink-black);
    color: var(--warm-white);
    padding: 80px 80px 40px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .footer-name {
    font-size: 2rem;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
}

.footer-brand .footer-tagline {
    font-size: 0.88rem;
    color: rgba(245,240,232,0.5);
    letter-spacing: 0.2em;
    margin-bottom: 20px;
}

.footer-brand .footer-cta {
    font-size: 0.82rem;
    color: var(--gold);
    letter-spacing: 0.15em;
}

.footer-col-title {
    font-size: 0.82rem;
    letter-spacing: 0.2em;
    color: rgba(245,240,232,0.4);
    margin-bottom: 20px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 12px; }

.footer-col a {
    font-size: 0.85rem;
    color: rgba(245,240,232,0.7);
    letter-spacing: 0.05em;
    transition: var(--transition);
}

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

.footer-contact-item {
    font-size: 0.85rem;
    color: rgba(245,240,232,0.7);
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(245,240,232,0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 0.78rem;
    color: rgba(245,240,232,0.35);
    letter-spacing: 0.1em;
}

.footer-links { display: flex; gap: 24px; }

.footer-links a {
    font-size: 0.78rem;
    color: rgba(245,240,232,0.35);
    letter-spacing: 0.1em;
    transition: var(--transition);
}

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

/* ============================================
   Page Header (for inner pages)
   ============================================ */

.page-header {
    padding: 140px 80px 60px;
    background: linear-gradient(135deg,#4a6b6b 0%,#6b8f8f 50%,var(--warm-white) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    letter-spacing: 0.15em;
    color: var(--ink-black);
    margin-bottom: 15px;
}

.page-header p {
    font-size: 0.88rem;
    color: var(--fog-gray);
    letter-spacing: 0.2em;
}

/* ============================================
   Content Body
   ============================================ */

.content-body {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: var(--warm-white);
    border-radius: var(--radius);
    border: 1px solid rgba(139,165,165,0.12);
}

.content-body h2 {
    font-size: 1.8em;
    color: var(--ink-black);
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(201,169,98,0.2);
    letter-spacing: 0.1em;
}

.content-body h3 {
    font-size: 1.4em;
    color: var(--ink-black);
    margin: 30px 0 15px;
}

.content-body p {
    color: #555;
    margin-bottom: 20px;
    font-size: 1.05em;
    line-height: 2;
}

.content-body ul, .content-body ol {
    color: #555;
    margin: 20px 0;
    padding-left: 25px;
}

.content-body li { margin-bottom: 10px; }

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .section { padding: 80px 40px; }
    .hero { padding: 0 40px; }
    .timeline { grid-template-columns: repeat(2,1fr); }
    .product-grid { grid-template-columns: repeat(2,1fr); }
    .craft-steps { grid-template-columns: repeat(2,1fr); }
    .origin-layout { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: repeat(2,1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
    .news-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 768px) {
    .site-header { padding: 0 24px; }
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .section { padding: 60px 24px; }
    .hero { padding: 0 24px; flex-direction: column; padding-top: 120px; padding-bottom: 60px; }
    .hero-title { font-size: 4rem; margin-bottom: 20px; }
    .hero-slogan { flex-direction: column; gap: 12px; }
    .hero-fish { position: relative; right: auto; top: auto; transform: none; width: 100%; height: 200px; margin-top: 40px; }
    .timeline { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; }
    .craft-steps { grid-template-columns: 1fr; }
    .origin-stats { grid-template-columns: 1fr; }
    .culture-grid { grid-template-columns: 1fr; }
    .culture-card { flex-direction: column; }
    .culture-card-img { width: 100%; height: 180px; }
    .team-grid { grid-template-columns: 1fr; }
    .resp-grid { grid-template-columns: 1fr; }
    .footer { padding: 60px 24px 30px; }
    .footer-top { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .brand-ip-art { flex-direction: column; gap: 40px; }
    .brand-ip-chr { font-size: 6rem; }
    .contact-section { padding: 60px 24px; }
    .page-header { padding: 120px 24px 40px; }
    .news-grid { grid-template-columns: 1fr; }
}