/* ========================================
   品牌 Lookbook 制作指南站 - 主样式表
   前缀: b2s01k02n05-harbor-
   风格: 知识库手账拼贴风，潮流先锋
   ======================================== */

/* CSS Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --harbor-primary: #1a1a2e;
    --harbor-secondary: #e94560;
    --harbor-accent: #f5a623;
    --harbor-bg: #faf8f5;
    --harbor-card-bg: #ffffff;
    --harbor-text: #2d2d2d;
    --harbor-text-light: #6b6b6b;
    --harbor-border: #e8e4df;
    --harbor-shadow: 0 4px 20px rgba(0,0,0,0.08);
    --harbor-radius: 12px;
    --harbor-font-main: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --harbor-font-display: 'Playfair Display', Georgia, serif;
    --harbor-max-width: 1200px;
    --harbor-transition: all 0.3s ease;
}

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

body {
    font-family: var(--harbor-font-main);
    background-color: var(--harbor-bg);
    color: var(--harbor-text);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    color: var(--harbor-accent);
}

/* ========================================
   Header & Navigation
   ======================================== */
.b2s01k02n05-harbor-header {
    background: var(--harbor-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.b2s01k02n05-harbor-header-inner {
    max-width: var(--harbor-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.b2s01k02n05-harbor-logo {
    display: flex;
    align-items: center;
}

.b2s01k02n05-harbor-logo img {
    height: 40px;
    width: auto;
}

.b2s01k02n05-harbor-nav-list {
    display: flex;
    list-style: none;
    gap: 8px;
}

.b2s01k02n05-harbor-nav-item {
    position: relative;
}

.b2s01k02n05-harbor-link-element {
    color: #ffffff;
    padding: 10px 16px;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    display: block;
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-link-element:hover,
.b2s01k02n05-harbor-link-element.active {
    background: var(--harbor-secondary);
    color: #ffffff;
}

.b2s01k02n05-harbor-mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* ========================================
   Hero / Banner Section
   ======================================== */
.b2s01k02n05-harbor-hero {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--harbor-primary) 0%, #16213e 100%);
}

.b2s01k02n05-harbor-hero-bg {
    position: absolute;
    inset: 0;
    opacity: 0.3;
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.b2s01k02n05-harbor-hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--harbor-max-width);
    margin: 0 auto;
    padding: 60px 20px;
    color: #ffffff;
}

.b2s01k02n05-harbor-hero-content h1 {
    font-family: var(--harbor-font-display);
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.b2s01k02n05-harbor-hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.b2s01k02n05-harbor-cta-btn {
    display: inline-block;
    background: var(--harbor-secondary);
    color: #ffffff;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--harbor-transition);
    border: 2px solid var(--harbor-secondary);
}

.b2s01k02n05-harbor-cta-btn:hover {
    background: transparent;
    color: #ffffff;
    border-color: #ffffff;
}

.b2s01k02n05-harbor-cta-btn-outline {
    display: inline-block;
    background: transparent;
    color: #ffffff;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    transition: var(--harbor-transition);
    border: 2px solid #ffffff;
    margin-left: 12px;
}

.b2s01k02n05-harbor-cta-btn-outline:hover {
    background: #ffffff;
    color: var(--harbor-primary);
}

/* ========================================
   Section Common Styles
   ======================================== */
.b2s01k02n05-harbor-section {
    padding: 80px 20px;
    max-width: var(--harbor-max-width);
    margin: 0 auto;
}

.b2s01k02n05-harbor-section-title {
    font-family: var(--harbor-font-display);
    font-size: 2rem;
    color: var(--harbor-primary);
    margin-bottom: 16px;
    position: relative;
    padding-bottom: 16px;
}

.b2s01k02n05-harbor-section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--harbor-secondary);
    border-radius: 2px;
}

.b2s01k02n05-harbor-section-title.center {
    text-align: center;
}

.b2s01k02n05-harbor-section-title.center::after {
    left: 50%;
    transform: translateX(-50%);
}

.b2s01k02n05-harbor-section-desc {
    color: var(--harbor-text-light);
    font-size: 1.05rem;
    margin-bottom: 40px;
    max-width: 700px;
}

.b2s01k02n05-harbor-section-desc.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Card Grid System
   ======================================== */
.b2s01k02n05-harbor-grid {
    display: grid;
    gap: 24px;
}

.b2s01k02n05-harbor-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.b2s01k02n05-harbor-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.b2s01k02n05-harbor-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.b2s01k02n05-harbor-card {
    background: var(--harbor-card-bg);
    border-radius: var(--harbor-radius);
    overflow: hidden;
    box-shadow: var(--harbor-shadow);
    transition: var(--harbor-transition);
    border: 1px solid var(--harbor-border);
}

.b2s01k02n05-harbor-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.b2s01k02n05-harbor-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.b2s01k02n05-harbor-card-body {
    padding: 20px;
}

.b2s01k02n05-harbor-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--harbor-primary);
}

.b2s01k02n05-harbor-card-meta {
    font-size: 0.85rem;
    color: var(--harbor-text-light);
    margin-bottom: 10px;
}

.b2s01k02n05-harbor-card-excerpt {
    font-size: 0.95rem;
    color: var(--harbor-text-light);
    line-height: 1.7;
}

.b2s01k02n05-harbor-card-link {
    display: inline-block;
    margin-top: 12px;
    font-weight: 600;
    font-size: 0.9rem;
}

/* ========================================
   Features / Advantages Section
   ======================================== */
.b2s01k02n05-harbor-features {
    background: linear-gradient(135deg, #f8f4f0 0%, #fdf9f5 100%);
    padding: 80px 20px;
}

.b2s01k02n05-harbor-feature-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--harbor-card-bg);
    border-radius: var(--harbor-radius);
    border: 1px solid var(--harbor-border);
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-feature-item:hover {
    border-color: var(--harbor-secondary);
}

.b2s01k02n05-harbor-feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--harbor-secondary), var(--harbor-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
}

.b2s01k02n05-harbor-feature-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--harbor-primary);
}

.b2s01k02n05-harbor-feature-desc {
    font-size: 0.9rem;
    color: var(--harbor-text-light);
}

/* ========================================
   Video Section
   ======================================== */
.b2s01k02n05-harbor-video-section {
    background: var(--harbor-primary);
    padding: 60px 20px;
}

.b2s01k02n05-harbor-video-wrapper {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--harbor-radius);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.b2s01k02n05-harbor-video-wrapper video {
    width: 100%;
    display: block;
}

/* ========================================
   FAQ Section
   ======================================== */
.b2s01k02n05-harbor-faq-item {
    border: 1px solid var(--harbor-border);
    border-radius: var(--harbor-radius);
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--harbor-card-bg);
}

.b2s01k02n05-harbor-faq-question {
    padding: 18px 24px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-faq-question:hover {
    background: #f8f4f0;
}

.b2s01k02n05-harbor-faq-answer {
    padding: 0 24px 18px;
    color: var(--harbor-text-light);
    line-height: 1.8;
    display: none;
}

.b2s01k02n05-harbor-faq-item.active .b2s01k02n05-harbor-faq-answer {
    display: block;
}

/* ========================================
   Interactive Tool Section
   ======================================== */
.b2s01k02n05-harbor-tool-section {
    background: linear-gradient(135deg, #fdf6e3 0%, #f8f0e3 100%);
    padding: 80px 20px;
}

.b2s01k02n05-harbor-tool-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--harbor-card-bg);
    padding: 40px;
    border-radius: var(--harbor-radius);
    box-shadow: var(--harbor-shadow);
}

.b2s01k02n05-harbor-form-group {
    margin-bottom: 20px;
}

.b2s01k02n05-harbor-form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--harbor-primary);
}

.b2s01k02n05-harbor-form-group select,
.b2s01k02n05-harbor-form-group input,
.b2s01k02n05-harbor-form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--harbor-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--harbor-font-main);
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-form-group select:focus,
.b2s01k02n05-harbor-form-group input:focus,
.b2s01k02n05-harbor-form-group textarea:focus {
    outline: none;
    border-color: var(--harbor-secondary);
    box-shadow: 0 0 0 3px rgba(233,69,96,0.1);
}

.b2s01k02n05-harbor-submit-btn {
    display: inline-block;
    background: var(--harbor-secondary);
    color: #ffffff;
    padding: 14px 40px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-submit-btn:hover {
    background: var(--harbor-primary);
    transform: translateY(-2px);
}

/* ========================================
   Trust / Credentials Section
   ======================================== */
.b2s01k02n05-harbor-trust-section {
    background: #f0ebe5;
    padding: 60px 20px;
}

.b2s01k02n05-harbor-trust-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 40px;
    max-width: var(--harbor-max-width);
    margin: 0 auto;
}

.b2s01k02n05-harbor-trust-item {
    text-align: center;
}

.b2s01k02n05-harbor-trust-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--harbor-secondary);
    font-family: var(--harbor-font-display);
}

.b2s01k02n05-harbor-trust-label {
    font-size: 0.9rem;
    color: var(--harbor-text-light);
    margin-top: 4px;
}

/* ========================================
   Breadcrumb
   ======================================== */
.b2s01k02n05-harbor-breadcrumb {
    padding: 16px 20px;
    max-width: var(--harbor-max-width);
    margin: 0 auto;
    font-size: 0.9rem;
    color: var(--harbor-text-light);
}

.b2s01k02n05-harbor-breadcrumb a {
    color: var(--harbor-text-light);
}

.b2s01k02n05-harbor-breadcrumb a:hover {
    color: var(--harbor-secondary);
}

.b2s01k02n05-harbor-breadcrumb span {
    margin: 0 8px;
}

/* ========================================
   Footer
   ======================================== */
.b2s01k02n05-harbor-footer {
    background: var(--harbor-primary);
    color: #cccccc;
    padding: 60px 20px 30px;
}

.b2s01k02n05-harbor-footer-inner {
    max-width: var(--harbor-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.b2s01k02n05-harbor-footer-col h4 {
    color: #ffffff;
    font-size: 1.05rem;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--harbor-secondary);
    display: inline-block;
}

.b2s01k02n05-harbor-footer-col ul {
    list-style: none;
}

.b2s01k02n05-harbor-footer-col ul li {
    margin-bottom: 8px;
}

.b2s01k02n05-harbor-footer-col ul li a {
    color: #aaaaaa;
    font-size: 0.9rem;
}

.b2s01k02n05-harbor-footer-col ul li a:hover {
    color: var(--harbor-secondary);
}

.b2s01k02n05-harbor-footer-col p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: #aaaaaa;
}

.b2s01k02n05-harbor-footer-bottom {
    max-width: var(--harbor-max-width);
    margin: 30px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.85rem;
    color: #888888;
}

.b2s01k02n05-harbor-footer-bottom a {
    color: #aaaaaa;
}

.b2s01k02n05-harbor-social-links {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.b2s01k02n05-harbor-social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: #cccccc;
    font-size: 0.85rem;
    transition: var(--harbor-transition);
}

.b2s01k02n05-harbor-social-links a:hover {
    background: var(--harbor-secondary);
    color: #ffffff;
}

/* ========================================
   Article / Content Page Styles
   ======================================== */
.b2s01k02n05-harbor-article-block {
    background: var(--harbor-card-bg);
    border-radius: var(--harbor-radius);
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: var(--harbor-shadow);
}

.b2s01k02n05-harbor-article-block h2 {
    font-size: 1.6rem;
    color: var(--harbor-primary);
    margin-bottom: 16px;
}

.b2s01k02n05-harbor-article-block h3 {
    font-size: 1.3rem;
    color: var(--harbor-primary);
    margin: 24px 0 12px;
}

.b2s01k02n05-harbor-article-block p {
    margin-bottom: 16px;
    line-height: 1.9;
}

.b2s01k02n05-harbor-article-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--harbor-text-light);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--harbor-border);
}

/* ========================================
   Timeline
   ======================================== */
.b2s01k02n05-harbor-timeline {
    position: relative;
    padding-left: 30px;
}

.b2s01k02n05-harbor-timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--harbor-secondary);
    border-radius: 2px;
}

.b2s01k02n05-harbor-timeline-item {
    position: relative;
    margin-bottom: 30px;
    padding-left: 20px;
}

.b2s01k02n05-harbor-timeline-item::before {
    content: '';
    position: absolute;
    left: -26px;
    top: 6px;
    width: 14px;
    height: 14px;
    background: var(--harbor-secondary);
    border-radius: 50%;
    border: 3px solid var(--harbor-bg);
}

.b2s01k02n05-harbor-timeline-year {
    font-weight: 700;
    color: var(--harbor-secondary);
    font-size: 1.1rem;
}

.b2s01k02n05-harbor-timeline-desc {
    color: var(--harbor-text-light);
    margin-top: 4px;
}

/* ========================================
   Team Section
   ======================================== */
.b2s01k02n05-harbor-team-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--harbor-card-bg);
    border-radius: var(--harbor-radius);
    border: 1px solid var(--harbor-border);
}

.b2s01k02n05-harbor-team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 16px;
    border: 3px solid var(--harbor-secondary);
}

.b2s01k02n05-harbor-team-name {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--harbor-primary);
}

.b2s01k02n05-harbor-team-role {
    font-size: 0.85rem;
    color: var(--harbor-text-light);
    margin-top: 4px;
}

/* ========================================
   Contact Form
   ======================================== */
.b2s01k02n05-harbor-contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.b2s01k02n05-harbor-contact-item {
    padding: 20px;
    background: var(--harbor-card-bg);
    border-radius: var(--harbor-radius);
    border: 1px solid var(--harbor-border);
}

.b2s01k02n05-harbor-contact-item strong {
    display: block;
    margin-bottom: 6px;
    color: var(--harbor-primary);
}

/* ========================================
   Page Header (Inner Pages)
   ======================================== */
.b2s01k02n05-harbor-page-header {
    background: linear-gradient(135deg, var(--harbor-primary) 0%, #16213e 100%);
    padding: 60px 20px;
    text-align: center;
    color: #ffffff;
}

.b2s01k02n05-harbor-page-header h1 {
    font-family: var(--harbor-font-display);
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.b2s01k02n05-harbor-page-header p {
    font-size: 1.05rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Responsive Design - Mobile First
   ======================================== */

/* <= 480px */
@media (max-width: 480px) {
    html { font-size: 14px; }
    
    .b2s01k02n05-harbor-hero-content h1 { font-size: 1.8rem; }
    .b2s01k02n05-harbor-hero { min-height: 400px; }
    
    .b2s01k02n05-harbor-grid-2,
    .b2s01k02n05-harbor-grid-3,
    .b2s01k02n05-harbor-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .b2s01k02n05-harbor-footer-inner {
        grid-template-columns: 1fr;
    }
    
    .b2s01k02n05-harbor-contact-info {
        grid-template-columns: 1fr;
    }
    
    .b2s01k02n05-harbor-article-block {
        padding: 20px;
    }
    
    .b2s01k02n05-harbor-cta-btn-outline {
        margin-left: 0;
        margin-top: 12px;
    }
}

/* <= 768px */
@media (max-width: 768px) {
    .b2s01k02n05-harbor-nav-list {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--harbor-primary);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    }
    
    .b2s01k02n05-harbor-nav-list.active {
        display: flex;
    }
    
    .b2s01k02n05-harbor-mobile-toggle {
        display: block;
    }
    
    .b2s01k02n05-harbor-grid-2,
    .b2s01k02n05-harbor-grid-3 {
        grid-template-columns: 1fr;
    }
    
    .b2s01k02n05-harbor-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .b2s01k02n05-harbor-footer-inner {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .b2s01k02n05-harbor-hero-content h1 { font-size: 2rem; }
    
    .b2s01k02n05-harbor-section { padding: 50px 16px; }
    
    .b2s01k02n05-harbor-tool-form { padding: 24px; }
}

/* <= 992px */
@media (max-width: 992px) {
    .b2s01k02n05-harbor-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .b2s01k02n05-harbor-hero-content h1 { font-size: 2.4rem; }
}

/* <= 1200px */
@media (max-width: 1200px) {
    .b2s01k02n05-harbor-section {
        padding: 60px 20px;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.b2s01k02n05-harbor-text-center { text-align: center; }
.b2s01k02n05-harbor-mt-20 { margin-top: 20px; }
.b2s01k02n05-harbor-mb-20 { margin-bottom: 20px; }
.b2s01k02n05-harbor-hidden { display: none; }

/* Scrapbook / Collage decorative elements */
.b2s01k02n05-harbor-tape {
    position: relative;
}

.b2s01k02n05-harbor-tape::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 60px;
    height: 20px;
    background: rgba(245,166,35,0.4);
    transform: rotate(-2deg);
    border-radius: 2px;
}

.b2s01k02n05-harbor-sticker {
    display: inline-block;
    background: var(--harbor-accent);
    color: #ffffff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(-1deg);
}

/* Map container */
.b2s01k02n05-harbor-map-container {
    width: 100%;
    height: 300px;
    border-radius: var(--harbor-radius);
    overflow: hidden;
    border: 1px solid var(--harbor-border);
}

.b2s01k02n05-harbor-map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}