/* ==========================================================================
   杨一昕 个人作品集与简历样式表 (style.css)
   视觉语言：Warm Editorial + Interactive Studio Whiteboard
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@1,600;1,700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --------------------------------------------------------------------------
   全站设计系统变量与全局配色
   -------------------------------------------------------------------------- */
:root {
    --bg-primary: #FAF8F5;          /* 全站天然暖白纸张基底 (Warm Alabaster) */
    --bg-surface: #FFFFFF;          /* 纯净白衬底 */
    --bg-subtle: #F3EFEA;           /* 次级浅暖灰衬底 */
    --bg-elevated: #EDE8E1;         /* 聚焦衬底 */
    --bg-board: #F9F7F3;            /* 小白板底色 */
    
    --text-primary: #1C1917;        /* 深墨炭黑 (Deep Charcoal) */
    --text-secondary: #57534E;      /* 暖石灰 (Warm Stone) */
    --text-muted: #78716C;          /* 浅灰 (Muted Ochre Gray) */
    
    --accent: #C2410C;              /* 强调色 (Terracotta 赤陶赭石色) */
    --accent-hover: #9A3412;        /* 强调色悬浮态 */
    --accent-subtle: #FFF7ED;       /* 浅赤陶色标签背景 */
    --accent-blue: #0284C7;         /* 次级强调天蓝 (Case 2 / TikTok) */
    --accent-blue-subtle: #F0F9FF;
    
    --border-hairline: #E7E5E4;     /* 1px 极细微结构分割线 */
    --border-medium: #D6D3D1;       /* 中等分割线 */
    --border-dark: #A8A29E;         /* 强调分割线 */
    
    /* 字体与排版 */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-cursive: 'Caveat', 'Playfair Display', cursive, serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    /* 空间与间距 */
    --space-section: 95px;
    --container-width: 1180px;
    
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(28, 25, 23, 0.06);
    --shadow-lg: 0 16px 36px rgba(28, 25, 23, 0.09);
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
}

.section {
    padding: var(--space-section) 0;
    border-top: 1px solid var(--border-hairline);
}

.section-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.label-index {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.label-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.editorial-headline {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.section-desc-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 32px;
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   1. 顶部导航栏 (Navbar)
   -------------------------------------------------------------------------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 248, 245, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-hairline);
    transition: var(--transition);
}

.nav-inner {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 0.98rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.brand-index {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 1px 6px;
    border-radius: 4px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    font-weight: 600;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent);
}

.nav-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-subtle);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-hairline);
}

.status-indicator {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: #16a34a;
    box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.menu-line {
    width: 22px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

/* --------------------------------------------------------------------------
   2. 首页 Hero 与创意方格概览 (Whiteboard Studio)
   -------------------------------------------------------------------------- */
.hero-section {
    padding: 36px 0 50px 0;
}

.hero-creative-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.hero-title-group {
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-cursive-title {
    font-family: var(--font-cursive);
    font-size: 3.8rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.hero-cursive-sub {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
}

.sub-chinese {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sub-divider {
    color: var(--border-dark);
}

.sub-direction {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.hero-sub-intro {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* 概览白板容器 */
.whiteboard-canvas {
    position: relative;
    background-color: var(--bg-board);
    background-image: 
        linear-gradient(to right, rgba(0, 0, 0, 0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
    background-size: 22px 22px;
    border: 1px solid var(--border-medium);
    border-radius: 16px;
    padding: 32px 32px 50px 32px;
    min-height: 420px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 40px;
    overflow: visible;
}

.whiteboard-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-medium);
}

.board-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.board-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent);
}

.board-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* 白板上的卡片网格布局 */
.whiteboard-grid {
    display: grid;
    grid-template-columns: 1.15fr 1.05fr 1fr;
    gap: 24px;
    align-items: start;
}

/* 3D 翻转个人名片 */
.flip-card-wrapper {
    perspective: 1000px;
    cursor: pointer;
    transform: rotate(-1.5deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.flip-card-wrapper:hover {
    transform: rotate(0deg) translateY(-4px);
}

.flip-card-inner {
    position: relative;
    width: 100%;
    min-height: 280px;
    text-align: left;
    transition: transform 0.6s cubic-bezier(0.4, 0.2, 0.2, 1);
    transform-style: preserve-3d;
}

.flip-card-wrapper.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 12px;
    padding: 22px;
    border: 1px solid var(--border-medium);
    box-shadow: var(--shadow-md);
    background: var(--bg-surface);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.flip-card-front {
    background: linear-gradient(145deg, #ffffff 0%, #FAF8F5 100%);
}

.profile-badge-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.profile-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-subtle);
    padding: 2px 8px;
    border-radius: 4px;
}

.flip-hint-badge {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 4px;
}

.profile-avatar-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 10px 0;
}

.avatar-circle-frame {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    overflow: hidden;
    border: 1px solid var(--border-medium);
    flex-shrink: 0;
}

.avatar-circle-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.profile-main-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.profile-name {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.profile-school {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.profile-role {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
}

.profile-footer-tip {
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px dashed var(--border-hairline);
    padding-top: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flip-card-back {
    transform: rotateY(180deg);
    background: #ffffff;
    justify-content: flex-start;
    gap: 10px;
}

.back-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-hairline);
    padding-bottom: 8px;
}

.back-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.back-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.back-list li strong {
    color: var(--text-primary);
}

.back-footer-btn {
    margin-top: auto;
    font-size: 0.76rem;
    color: var(--accent);
    font-weight: 600;
    text-align: right;
}

/* 名片 2：资质证书与荣誉竖卡 */
.credentials-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-md);
    transform: rotate(1.2deg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.credentials-card:hover {
    transform: rotate(0deg) translateY(-4px);
}

.card-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1.5px solid var(--text-primary);
}

.card-heading {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.expand-toggle-icon {
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 700;
    transition: transform 0.3s ease;
}

.credentials-card.expanded .expand-toggle-icon {
    transform: rotate(180deg);
}

.credentials-preview-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.cred-pill {
    font-size: 0.74rem;
    font-weight: 600;
    background: var(--bg-subtle);
    color: var(--text-secondary);
    padding: 2px 7px;
    border-radius: 4px;
    border: 1px solid var(--border-hairline);
}

.credentials-details-list {
    display: none;
    flex-direction: column;
    gap: 6px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    border-top: 1px dashed var(--border-hairline);
    padding-top: 10px;
    animation: fadeIn 0.3s ease;
}

.credentials-card.expanded .credentials-details-list {
    display: flex;
}

.credentials-details-list li {
    position: relative;
    padding-left: 14px;
    line-height: 1.45;
}

.credentials-details-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 800;
}

.credentials-details-list .honor-highlight strong {
    color: var(--accent);
}

/* 白板右栏：课程便签 + 实践心得便签 */
.whiteboard-column-right {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sticky-note-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    padding: 18px;
    box-shadow: var(--shadow-sm);
    transform: rotate(-1deg);
}

.sticky-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.sticky-course-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.course-badge {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--bg-subtle);
    color: var(--text-secondary);
    padding: 2px 7px;
    border-radius: 4px;
    border: 1px solid var(--border-hairline);
}

.memo-note-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow-sm);
    transform: rotate(0.8deg);
}

.memo-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.memo-text {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 可拖拽 Q 版 OC 贴纸 */
.board-sticker {
    position: absolute;
    z-index: 20;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none;
    transition: transform 0.15s ease, filter 0.2s ease;
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.12));
}

.board-sticker:active,
.board-sticker.dragging {
    cursor: grabbing;
    transform: scale(1.08) rotate(3deg);
    z-index: 30;
    filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.2));
}

.board-sticker img {
    width: 82px;
    height: auto;
    pointer-events: none;
}

/* 贴纸说话的小气泡 */
.sticker-speech-bubble {
    position: absolute;
    top: -22px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--border-medium);
    color: var(--text-secondary);
    font-size: 0.7rem;
    font-family: var(--font-sans);
    padding: 1px 8px;
    border-radius: 10px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease, transform 0.2s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.board-sticker:hover .sticker-speech-bubble,
.board-sticker.dragging .sticker-speech-bubble {
    opacity: 1;
    transform: translateX(-50%) translateY(-2px);
}

#sticker-cuiniao {
    bottom: 12px;
    left: 28px;
}

#sticker-shanchong {
    bottom: 12px;
    right: 28px;
}

/* 核心成果数据带 */
.hero-metrics-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--border-hairline);
    border-bottom: 1px solid var(--border-hairline);
    padding: 30px 0;
}

.metric-block {
    padding: 0 24px;
    border-right: 1px solid var(--border-hairline);
}

.metric-block:last-child {
    border-right: none;
}

.metric-value {
    font-family: var(--font-sans);
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    margin-bottom: 4px;
}

.metric-unit {
    color: var(--accent);
    font-size: 1.7rem;
    margin-left: 2px;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   3. 核心爆款案例拆解 (Featured Case Studies)
   -------------------------------------------------------------------------- */
.focus-case-section {
    background: var(--bg-surface);
}

.case-study-card {
    border: 1px solid var(--border-hairline);
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-sm);
}

.case-study-card.highlight-blue-theme {
    border-color: rgba(2, 132, 199, 0.25);
    background: linear-gradient(180deg, #FAF8F5 0%, #F5F9FD 100%);
}

.case-top-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border-hairline);
}

.case-badge-focus {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 6px;
    display: block;
}

.case-badge-focus.blue-tag {
    color: var(--accent-blue);
}

.case-main-title {
    font-size: 1.55rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.case-cta-group {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.tiktok-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #000000;
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.tiktok-link-btn:hover {
    background: #222222;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

.case-view-stat {
    text-align: right;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
    color: var(--accent);
}

.stat-number.blue-val {
    color: var(--accent-blue);
}

.stat-desc {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* 案例主体网格 */
.case-content-grid {
    display: grid;
    grid-template-columns: 1fr 1.25fr;
    gap: 32px;
    align-items: start;
}

/* 媒体展示列 */
.case-media-side {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.zoomable-frame {
    position: relative;
    cursor: zoom-in;
    border: 1px solid var(--border-hairline);
    background: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.zoomable-frame img {
    width: 100%;
    transition: transform 0.3s ease;
}

.zoomable-frame:hover img {
    transform: scale(1.02);
}

.zoom-hint {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(28, 25, 23, 0.85);
    color: #ffffff;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    padding: 3px 8px;
    border-radius: 4px;
    backdrop-filter: blur(4px);
    pointer-events: none;
}

.media-compare-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.case-media-caption {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Problem-KPI-Action-Outcome 结构化排版 */
.case-framework-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.framework-block {
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 10px;
    padding: 16px 18px;
}

.framework-block.accent-action-block {
    border-left: 4px solid var(--accent);
}

.framework-block.blue-action-block {
    border-left: 4px solid var(--accent-blue);
}

.framework-label-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.block-step-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    background: var(--text-primary);
    color: #ffffff;
    padding: 2px 6px;
    border-radius: 3px;
}

.block-title-text {
    font-size: 0.92rem;
    font-weight: 800;
    color: var(--text-primary);
}

.framework-body-text {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.framework-body-text strong {
    color: var(--text-primary);
}

/* 四维 Hook 一竖列排版 (解决底部留白) */
.hook-vertical-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.hook-subitem {
    background: var(--bg-primary);
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-hairline);
}

.hook-subtitle {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.hook-subdesc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

/* 分步文案呈现 */
.script-steps-accordion {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.step-script-row {
    background: var(--bg-primary);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    padding: 12px 14px;
}

.step-script-head {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 4px;
}

.step-en-text {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.45;
}

.step-zh-text {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 3px;
}

/* --------------------------------------------------------------------------
   4. 社媒账号主页展示与跨平台实测数据 (Social Profiles & Matrix)
   -------------------------------------------------------------------------- */
.social-profiles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.profile-card-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.profile-card-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.profile-card-item .zoomable-frame {
    border: none;
    border-radius: 0;
}

.profile-card-item img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    object-position: top;
}

.profile-card-name {
    padding: 8px;
    text-align: center;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    border-top: 1px solid var(--border-hairline);
    background: var(--bg-primary);
}

/* 跨平台数据表格 */
.editorial-table-wrapper {
    overflow-x: auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 40px;
}

.editorial-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.editorial-table th {
    background: var(--bg-subtle);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-medium);
}

.editorial-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-hairline);
    color: var(--text-secondary);
}

.editorial-table tr:last-child td {
    border-bottom: none;
}

.editorial-table tr:hover td {
    background: var(--bg-primary);
}

.table-plat-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--bg-subtle);
    padding: 2px 8px;
    border-radius: 4px;
}

.highlight-val {
    color: var(--accent);
    font-weight: 700;
}

/* 平台观察矩阵 */
.methodology-matrix {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.matrix-row {
    display: grid;
    grid-template-columns: 150px 1fr 1fr;
    gap: 20px;
    padding: 18px 22px;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 10px;
    transition: var(--transition);
}

.matrix-row:hover {
    border-color: var(--border-dark);
    box-shadow: var(--shadow-sm);
}

.matrix-plat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.plat-name {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
}

.plat-type {
    font-size: 0.76rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.col-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 4px;
}

.matrix-works p, .matrix-do p {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* --------------------------------------------------------------------------
   5. 部分文案策划与视觉设计产出 (Works & Design)
   -------------------------------------------------------------------------- */
.works-head-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 28px;
}

.filter-tabs {
    display: flex;
    gap: 8px;
}

.filter-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-medium);
    padding: 7px 18px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--text-primary);
    color: #ffffff;
    border-color: var(--text-primary);
}

.works-stream {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.work-item {
    transition: opacity 0.25s ease;
}

.work-item.hidden {
    display: none;
}

.work-header {
    margin-bottom: 20px;
}

.work-cat {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 4px;
}

.work-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
}

.work-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* 双语文案展示块 (左图右文结构) */
.copy-showcase-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    align-items: start;
}

.copy-img-side {
    border-radius: 8px;
    overflow: hidden;
}

.copy-texts-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.copy-platform-block {
    background: var(--bg-primary);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    padding: 16px;
}

.showcase-platform {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.plat-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    background: var(--accent-subtle);
    color: var(--accent);
    padding: 2px 7px;
    border-radius: 4px;
}

.plat-topic {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
}

.copy-lang-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin: 6px 0 2px 0;
}

.copy-zh {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.copy-en {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.5;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    padding: 8px 10px;
    border-radius: 4px;
    margin-top: 4px;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    margin-top: 8px;
}

/* 视觉设计物料自由照片墙 (Masonry 瀑布流插空排列 - 4列) */
.visual-photo-wall {
    column-count: 4;
    column-gap: 14px;
}

.photo-wall-item {
    break-inside: avoid;
    margin-bottom: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-hairline);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.photo-wall-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.photo-wall-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* --------------------------------------------------------------------------
   6. 经历与履历 (Experience Index)
   -------------------------------------------------------------------------- */
.editorial-timeline {
    display: flex;
    flex-direction: column;
    gap: 32px;
    border-top: 1px solid var(--border-hairline);
    padding-top: 32px;
}

.timeline-row {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 36px;
    align-items: start;
}

.timeline-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.time-range {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.time-role {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.timeline-org {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.timeline-bullets {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.timeline-bullets li {
    position: relative;
    padding-left: 18px;
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

.timeline-bullets li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

.timeline-bullets strong {
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   7. 核心技能与工具 (Skills & Tools)
   -------------------------------------------------------------------------- */
.skills-editorial-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    border-top: 1px solid var(--border-hairline);
    padding-top: 32px;
}

.skill-col-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 1.5px solid var(--text-primary);
}

.skill-col-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-col-list li {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   8. 联系方式与信息 (Contact Section - 一左一右简洁清晰)
   -------------------------------------------------------------------------- */
.contact-section {
    background: var(--bg-surface);
}

.contact-clean-layout {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 50px;
    border-top: 1px solid var(--border-hairline);
    padding-top: 32px;
    margin-bottom: 40px;
}

.contact-left {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-heading-main {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
}

.contact-status-sub {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent);
}

.contact-desc-text {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.75;
    max-width: 520px;
}

.contact-right {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-meta-row {
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.meta-label {
    font-weight: 700;
    color: var(--text-primary);
}

.meta-val {
    color: var(--text-secondary);
}

.contact-email-link {
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-medium);
    padding-bottom: 2px;
    display: inline-block;
}

.contact-email-link:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.contact-socials-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.social-text-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.soc-link {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-hairline);
}

/* 板块 07 贴纸区域 */
.contact-sticker-area {
    position: relative;
    width: 100%;
    min-height: 110px;
    overflow: visible;
    border-top: 1px dashed var(--border-hairline);
    padding-top: 10px;
}

#sticker-contact-cuiniao {
    top: 16px;
    left: 20px;
}

#sticker-contact-shanchong {
    top: 16px;
    left: calc(50% - 41px);
}

.editorial-footer {
    padding-top: 30px;
    border-top: 1px solid var(--border-hairline);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 12px;
}

/* --------------------------------------------------------------------------
   9. 图片全屏查看灯箱 (Lightbox Modal)
   -------------------------------------------------------------------------- */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.lightbox-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(18, 16, 15, 0.92);
    backdrop-filter: blur(8px);
}

.lightbox-container {
    position: relative;
    z-index: 10;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    margin-top: 14px;
    color: #FAF8F5;
    font-size: 0.9rem;
    text-align: center;
    max-width: 600px;
}

.lightbox-close {
    position: absolute;
    top: -44px;
    right: 0;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

/* --------------------------------------------------------------------------
   10. 响应式断点适配 (Media Queries)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .whiteboard-grid {
        grid-template-columns: 1fr 1fr;
    }

    .whiteboard-column-right {
        grid-column: 1 / -1;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

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

    .visual-photo-wall {
        column-count: 3;
    }
}

@media (max-width: 992px) {
    :root {
        --space-section: 75px;
    }

    .case-content-grid,
    .copy-showcase-layout,
    .contact-clean-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .matrix-row {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .timeline-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

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

    .hero-metrics-strip {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .metric-block {
        border-right: none;
        padding: 0;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .nav-inner {
        padding: 0 20px;
    }

    .nav-links {
        position: fixed;
        top: 68px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 68px);
        background: var(--bg-surface);
        flex-direction: column;
        justify-content: flex-start;
        padding: 36px 24px;
        gap: 24px;
        border-bottom: 1px solid var(--border-hairline);
        transition: left 0.25s ease;
    }

    .nav-links.open {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .nav-meta {
        display: none;
    }

    .hero-cursive-title {
        font-size: 2.8rem;
    }

    .whiteboard-canvas {
        padding: 20px;
    }

    .whiteboard-grid {
        grid-template-columns: 1fr;
    }

    .whiteboard-column-right {
        grid-template-columns: 1fr;
    }

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

    .visual-photo-wall {
        column-count: 2;
    }

    .hero-metrics-strip {
        grid-template-columns: 1fr;
    }

    .skills-editorial-grid {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}