/* ============================================================
   evan.dev — 共用设计系统
   MBZUAI 学术科技风：深蓝底色 + 金色强调 + 青/紫渐变光晕
   ============================================================ */

/* --- 字体（本地化 Fira Code 可变字体，不依赖外链） --- */
@font-face {
    font-family: 'Fira Code';
    font-style: normal;
    font-weight: 300 700;
    font-display: swap;
    src: url('../fonts/fira-code.woff2') format('woff2-variations'),
         url('../fonts/fira-code.woff2') format('woff2');
}

/* --- 设计变量 --- */
:root {
    /* Dark theme (default) — MBZUAI 深蓝+金 */
    --bg: #0f2744;
    --bg-grid: #1a3a5c;
    --surface: #1e3a5f;
    --surface-2: #234876;
    --border: #2a5a8c;
    --border-bright: #3a7ab8;
    --text: #f0f4f8;
    --text-dim: #94b8d8;
    --text-muted: #5a8ab8;
    --green: #c9a227;
    --green-glow: rgba(201, 162, 39, 0.35);
    --cyan: #7eb8e0;
    --cyan-glow: rgba(126, 184, 224, 0.35);
    --violet: #9b7ec8;
    --violet-glow: rgba(155, 126, 200, 0.35);
    --grad-accent: linear-gradient(115deg, #c9a227 0%, #7eb8e0 55%, #9b7ec8 100%);
    --radius: 8px;
    --mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Consolas, 'Courier New', monospace;
    --nav-h: 64px;
}



/* --- 基础 --- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--mono);
    line-height: 1.65;
    color: var(--text);
    background-color: var(--bg);
    background-image:
        radial-gradient(900px 420px at 12% -6%, rgba(201, 162, 39, 0.10), transparent 60%),
        radial-gradient(900px 520px at 88% -10%, rgba(155, 126, 200, 0.12), transparent 60%),
        radial-gradient(700px 500px at 50% 118%, rgba(126, 184, 224, 0.07), transparent 60%),
        linear-gradient(var(--bg-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
    background-size: auto, auto, auto, 32px 32px, 32px 32px;
    background-attachment: fixed;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}



body::before { /* 顶部氛围光带 */
    content: "";
    position: fixed;
    inset: 0 0 auto 0;
    height: 220px;
    background: linear-gradient(180deg, rgba(126, 184, 224, 0.05), transparent);
    pointer-events: none;
    z-index: -1;
}

::selection { background: rgba(201, 162, 39, 0.35); color: #fff; }

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-bright); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

a { text-decoration: none; color: var(--green); transition: color .2s, text-shadow .2s; }
a:hover { color: #fff; text-shadow: 0 0 10px var(--green-glow); }

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

/* --- 顶部导航 --- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--nav-h);
    z-index: 1000;
    background: rgba(15, 39, 68, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}


.site-header::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-glow), var(--cyan-glow), transparent);
    opacity: .6;
}

/* Header controls container */
.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Theme & Language Controls */
.ctrl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.6rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--text);
    background: transparent;
    border: 1px solid var(--border-bright);
    border-radius: 6px;
    cursor: pointer;
    transition: all .25s;
    gap: 0.3rem;
}



.ctrl-btn:hover {
    color: var(--green);
    border-color: var(--green);
    box-shadow: 0 0 10px rgba(201, 162, 39, 0.15);
}

.ctrl-btn.active {
    color: var(--green);
    border-color: var(--green);
    background: rgba(201, 162, 39, 0.08);
}

.ctrl-icon {
    font-size: 0.85rem;
}

.nav-wrap {
    max-width: 1160px;
    height: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    letter-spacing: .02em;
    white-space: nowrap;
}


.logo span { color: var(--green); text-shadow: 0 0 10px var(--green-glow); }
.logo .caret { color: var(--cyan); animation: blink 1.1s step-end infinite; }

.nav-links {
    list-style: none;
    display: flex;
    gap: 0.25rem;
    align-items: center;
}
.nav-links a {
    display: block;
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    color: var(--text-dim);
    font-size: 0.88rem;
    border: 1px solid transparent;
    transition: all .25s;
}


.nav-links a:hover {
    color: var(--green);
    background: rgba(201, 162, 39, 0.06);
    border-color: rgba(201, 162, 39, 0.25);
    text-shadow: 0 0 8px var(--green-glow);
    box-shadow: 0 0 14px rgba(201, 162, 39, 0.12) inset;
}
.nav-links a.active {
    color: var(--green);
    background: rgba(201, 162, 39, 0.08);
    border-color: var(--green);
    box-shadow: 0 0 14px rgba(201, 162, 39, 0.18) inset;
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-bright);
    color: var(--text-dim);
    font-family: var(--mono);
    font-size: 0.9rem;
    padding: 0.35rem 0.7rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all .25s;
}
.nav-toggle:hover { color: var(--green); border-color: var(--green); }

/* --- 主容器 --- */
.page { min-height: calc(100vh - var(--nav-h)); padding-top: var(--nav-h); }

.container { max-width: 1440px; margin: 0 auto; padding: 10px; }

/* --- 页头（终端标题） --- */
.page-head {
    padding: 5.5rem 0 1.5rem;
}
.page-head .prompt-line {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
}
.page-head .prompt-line .sym { color: var(--green); }
.page-head h1 {
    font-size: clamp(1.7rem, 4vw, 2.4rem);
    font-weight: 700;
    line-height: 1.25;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.page-head .sub {
    margin-top: 0.7rem;
    color: var(--text-dim);
    font-size: 0.95rem;
    max-width: 640px;
}

/* --- 区块标题 --- */
.section-head {
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
    margin-bottom: 2.4rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid var(--border);
    position: relative;
}
.section-head::after {
    content: "";
    position: absolute;
    left: 0; bottom: -1px;
    width: 80px; height: 1px;
    background: var(--grad-accent);
}
.section-head .tag {
    color: var(--green);
    font-size: 1.15rem;
    text-shadow: 0 0 10px var(--green-glow);
}
.section-head h2 {
    font-size: 1.45rem;
    font-weight: 600;
    color: var(--text);
}
.section-head .count {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --- 终端窗口 --- */
.terminal {
    background: var(--surface);
    border: 1px solid var(--border-bright);
    border-radius: var(--radius);
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(126, 184, 224, 0.04),
        0 0 42px rgba(201, 162, 39, 0.05);
    overflow: hidden;
    position: relative;
}
.terminal::before { /* 顶部扫描高光 */
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent 30%);
    pointer-events: none;
}
.term-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.term-dot.r { background: #ff5f56; }
.term-dot.y { background: #ffbd2e; }
.term-dot.g { background: #27c93f; }
.term-title {
    margin-left: 0.6rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}
.term-body { padding: 1.6rem 1.8rem; position: relative; }

/* --- Hero --- */
.hero {
    min-height: calc(100vh - var(--nav-h));
    display: flex;
    align-items: center;
    padding: 2rem 0;
}

.hero .terminal { width: 100%; max-width: 1024px; margin: 0 auto; }

/* Hero 双栏布局 */
.hero-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
    align-items: center;
}

/* 左侧：工作台照片 */
.hero-visual {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
}

.hero-img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    filter: grayscale(25%) contrast(108%) brightness(0.95);
    transition: filter .4s ease, transform .4s ease;
}

.hero-visual:hover .hero-img {
    filter: grayscale(0%) contrast(100%) brightness(1);
    transform: scale(1.03);
}

/* 遮罩层 */
.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(180deg, rgba(15, 39, 68, 0.7) 0%, transparent 30%),
        linear-gradient(0deg, rgba(15, 39, 68, 0.65) 0%, transparent 25%);
    pointer-events: none;
}

/* 扫描线叠加 */
.hero-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(0deg, transparent 0 2px, rgba(201, 162, 39, 0.02) 2px 4px),
        repeating-linear-gradient(90deg, transparent 0 2px, rgba(201, 162, 39, 0.02) 2px 4px);
    pointer-events: none;
}

/* 状态标签 */
.hero-status {
    position: absolute;
    top: 0.7rem;
    left: 0.7rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.65rem;
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--green);
    background: rgba(15, 39, 68, 0.85);
    border: 1px solid var(--green);
    border-radius: 4px;
    letter-spacing: 0.05em;
    z-index: 2;
}

.hero-status .dot {
    width: 5px;
    height: 5px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--green-glow); }
    50% { opacity: 0.5; box-shadow: 0 0 4px var(--green-glow); }
}

/* 摄像头标识 */
.hero-hint {
    position: absolute;
    bottom: 0.6rem;
    right: 0.7rem;
    font-family: var(--mono);
    font-size: 0.55rem;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    opacity: 0.7;
    z-index: 2;
}

/* 右侧：信息 */
.hero-info { }

.hero .cmd {
    color: var(--text-dim);
    font-size: 0.92rem;
    margin-bottom: 0.6rem;
}
.hero .cmd .prompt { color: var(--green); }
.hero h1 {
    font-size: clamp(1.7rem, 4.5vw, 2.6rem);
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
}
.hero h1 .name {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    text-shadow: 0 0 30px rgba(126, 184, 224, 0.25);
}
.typewriter-line {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    color: var(--cyan);
    margin-bottom: 1.4rem;
    min-height: 1.8rem;
}
.cursor {
    display: inline-block;
    width: 9px;
    height: 1.2em;
    background: var(--green);
    box-shadow: 0 0 10px var(--green-glow);
    animation: blink 1s step-end infinite;
}
.hero .desc {
    color: var(--text-dim);
    font-size: 0.92rem;
    max-width: 55ch;
    margin-bottom: 1.6rem;
}
.hero .desc .hl { color: var(--green); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* --- 按钮 --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.3rem;
    font-family: var(--mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--green);
    background: transparent;
    border: 1px solid var(--green);
    border-radius: 6px;
    cursor: pointer;
    transition: all .28s;
    position: relative;
}
.btn::before {
    content: "▸";
    color: var(--green);
    transition: transform .28s;
}
.btn:hover {
    background: var(--green-glow);
    color: #fff;
    box-shadow: 0 0 20px var(--green-glow), 0 0 0 1px var(--green) inset;
    transform: translateY(-2px);
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}
.btn:hover::before { transform: translateX(3px); }

.btn.ghost {
    color: var(--cyan);
    border-color: var(--cyan);
    background: transparent;
}
.btn.ghost::before { color: var(--cyan); }
.btn.ghost:hover {
    background: var(--cyan-glow);
    box-shadow: 0 0 20px var(--cyan-glow), 0 0 0 1px var(--cyan) inset;
}

/* --- 作品卡片网格 --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.card {
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    transition: transform .3s, border-color .3s, box-shadow .3s;
}
.card::before { /* 左上角科技角标 */
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 14px; height: 14px;
    border-top: 2px solid var(--green);
    border-left: 2px solid var(--green);
    opacity: 0.7;
    transition: opacity .3s, width .3s, height .3s;
    z-index: 2;
}
.card::after {
    content: "";
    position: absolute;
    bottom: 0; right: 0;
    width: 14px; height: 14px;
    border-bottom: 2px solid var(--green);
    border-right: 2px solid var(--green);
    opacity: 0.7;
    transition: opacity .3s, width .3s, height .3s;
    z-index: 2;
}
.card:hover {
    transform: translateY(-6px);
    border-color: var(--green);
    box-shadow:
        0 18px 44px rgba(0, 0, 0, 0.55),
        0 0 26px rgba(201, 162, 39, 0.14);
}
.card:hover::before,
.card:hover::after { width: 22px; height: 22px; opacity: 1; }

.card-visual {
    height: 170px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    background:
        linear-gradient(135deg, rgba(201,162,39,0.06), rgba(126,184,224,0.06)),
        repeating-linear-gradient(0deg, transparent 0 3px, rgba(15,39,68,0.9) 3px 4px);
    border-bottom: 1px dashed var(--border-bright);
    position: relative;
    overflow: hidden;
}
.card-visual .hint { display: inline-flex; align-items: center; gap: 0.5rem; }
.card-visual .hint::before { content: "◇"; color: var(--cyan); }

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%) contrast(105%) brightness(0.95);
    transition: filter .4s ease, transform .4s ease;
}

.card:hover .card-img {
    filter: grayscale(0%) contrast(100%) brightness(1);
    transform: scale(1.05);
}

.card-body { padding: 1.4rem 1.5rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.card-index {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    margin-bottom: 0.4rem;
}
.card-tag {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.72rem;
    color: var(--green);
    border: 1px solid rgba(201, 162, 39, 0.5);
    border-radius: 3px;
    padding: 0.1rem 0.5rem;
    margin-bottom: 0.7rem;
    background: rgba(201, 162, 39, 0.1);
}


.card-title { font-size: 1.12rem; font-weight: 600; color: var(--text); margin-bottom: 0.6rem; }
.card-desc { font-size: 0.85rem; color: var(--text-dim); flex: 1; margin-bottom: 1.1rem; }

.card-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.1rem; }
.mini-tag {
    font-size: 0.68rem;
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0.05rem 0.45rem;
    background: rgba(15, 39, 68, 0.6);
}

{}

.mini-tag.hl { color: var(--cyan); border-color: rgba(126, 184, 224, 0.4); }

{}

.card-link {
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--green);
}
.card-link .arr { transition: transform .25s; }
.card-link:hover .arr { transform: translateX(4px); }

/* --- 过滤按钮 --- */
.filters { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-bottom: 2.6rem; }
.filter-btn {
    padding: 0.45rem 1rem;
    font-family: var(--mono);
    font-size: 0.82rem;
    color: var(--text-dim);
    background: var(--surface);
    border: 1px solid var(--border-bright);
    border-radius: 6px;
    cursor: pointer;
    transition: all .25s;
}
.filter-btn:hover { color: var(--green); border-color: var(--green); box-shadow: 0 0 12px rgba(201, 162, 39, 0.18); }
.filter-btn.active {
    color: var(--green);
    border-color: var(--green);
    background: rgba(201, 162, 39, 0.08);
    box-shadow: 0 0 14px rgba(201, 162, 39, 0.2);
}

/* --- 领域卡（首页三领域） --- */
.domain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.domain-card {
    padding: 1.8rem 1.6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
    transition: all .3s;
}
.domain-card::before {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 3px;
    background: var(--grad-accent);
    opacity: 0;
    transition: opacity .3s;
}
.domain-card:hover { transform: translateY(-4px); border-color: var(--border-bright); box-shadow: 0 14px 34px rgba(0,0,0,.4); }
.domain-card:hover::before { opacity: 1; }
.domain-card .dc-icon {
    font-size: 1.4rem;
    color: var(--cyan);
    margin-bottom: 0.9rem;
    text-shadow: 0 0 12px var(--cyan-glow);
}
.domain-card h3 { font-size: 1.05rem; font-weight: 600; color: var(--text); margin-bottom: 0.6rem; }
.domain-card h3 span { color: var(--green); }
.domain-card p { font-size: 0.84rem; color: var(--text-dim); }
.domain-card .dc-links { margin-top: 1rem; font-size: 0.8rem; }

/* --- 徽章 & 标签 --- */
.badges { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.badge {
    padding: 0.35rem 0.85rem;
    font-size: 0.78rem;
    color: var(--text);
    background: var(--surface-2);
    border: 1px solid var(--border-bright);
    border-radius: 20px;
    transition: all .25s;
}
.badge:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 14px var(--cyan-glow); }
.badge .n { color: var(--green); }

/* --- 技能条 --- */
.skill-list { display: grid; gap: 1.2rem; }
.skill-item .skill-name {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 0.45rem;
}
.skill-item .skill-name b { color: var(--text); font-weight: 600; }
.skill-item .skill-name .pct { color: var(--green); }
.skill-track {
    height: 8px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}
.skill-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--green), var(--cyan));
    border-radius: 4px;
    box-shadow: 0 0 12px var(--green-glow);
    transition: width 1.1s cubic-bezier(.22, 1, .36, 1);
}

/* --- 时间线 --- */
.timeline { position: relative; padding-left: 1.9rem; }
.timeline::before {
    content: "";
    position: absolute;
    left: 7px; top: 6px; bottom: 6px;
    width: 2px;
    background: linear-gradient(180deg, var(--green), var(--cyan), var(--violet));
    opacity: 0.55;
}
.tl-item { position: relative; margin-bottom: 2rem; }
.tl-item::before {
    content: "";
    position: absolute;
    left: -1.9rem; top: 0.5rem;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--green);
    box-shadow: 0 0 10px var(--green-glow);
}
.tl-when { font-size: 0.75rem; color: var(--cyan); letter-spacing: 0.08em; margin-bottom: 0.3rem; }
.tl-title { font-size: 1.02rem; font-weight: 600; color: var(--text); margin-bottom: 0.35rem; }
.tl-desc { font-size: 0.85rem; color: var(--text-dim); max-width: 68ch; }

/* --- 认证证书卡片 --- */
.cert-card {
    margin-top: 1.2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    transition: border-color .3s, box-shadow .3s;
}
.cert-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #FF9900 0%, #232F3E 100%);
    opacity: 0.85;
}
.cert-card:hover {
    border-color: rgba(255, 153, 0, 0.5);
    box-shadow: 0 8px 32px rgba(255, 153, 0, 0.08);
}
.cert-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1.2rem;
    background: rgba(255, 153, 0, 0.06);
    border-bottom: 1px solid var(--border);
}
.cert-badge {
    font-size: 0.7rem;
    font-weight: 700;
    color: #FF9900;
    letter-spacing: 0.12em;
}
.cert-status {
    font-size: 0.7rem;
    color: var(--green);
    background: rgba(201, 162, 39, 0.12);
    padding: 0.25rem 0.65rem;
    border-radius: 99px;
    font-weight: 600;
}
.cert-body {
    padding: 1.2rem;
}
.cert-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.35rem;
}
.cert-holder {
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-bottom: 0.9rem;
}
.cert-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.cert-meta-item {
    display: flex;
    gap: 0.4rem;
    font-size: 0.78rem;
}
.cert-meta-label {
    color: var(--text-muted);
}
.cert-meta-value {
    color: var(--text-dim);
    font-weight: 500;
}
.cert-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1.2rem;
    border-top: 1px solid var(--border);
    background: rgba(255, 153, 0, 0.03);
}
.cert-link {
    font-size: 0.8rem;
    color: var(--cyan);
    text-decoration: none;
    transition: color .2s;
}
.cert-link:hover {
    color: var(--green);
    text-shadow: 0 0 10px var(--green-glow);
}
.cert-id {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-family: var(--mono);
}

/* --- 联系页 --- */
.contact-shell { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 2rem; align-items: start; }
.contact-panel {
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.contact-panel .cp-line {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    padding: 0.9rem 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.9rem;
}
.contact-panel .cp-line:last-child { border-bottom: none; }
.contact-panel .cp-k {
    min-width: 7em;
    color: var(--text-muted);
    font-size: 0.8rem;
}
.contact-panel .cp-v { color: var(--text); word-break: break-all; }
.contact-cta { text-align: center; }
.contact-cta .btn.mega { padding: 1rem 2rem; font-size: 1rem; }
.contact-cta .hint { margin-top: 1rem; font-size: 0.75rem; color: var(--text-muted); }

/* --- 页脚 --- */
.site-footer {
    border-top: 1px solid var(--border);
    margin-top: 3rem;
    padding: 2.2rem 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.site-footer .f-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 1.2rem; margin-bottom: 1.2rem; font-size: 0.85rem; }
.site-footer .f-sig { opacity: 0.75; }
.site-footer .f-sig .n { color: var(--green); }

/* --- 入场动画 --- */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity .7s ease, transform .7s cubic-bezier(.22, 1, .36, 1);
}
.reveal.in { opacity: 1; transform: none; }

/* 详情页首屏直接可见：标题/导航/主图/内容区无需滚动触发 */
.project-nav.reveal,
.project-header.reveal,
.project-hero-visual.reveal,
.project-info-grid.reveal {
    opacity: 1;
    transform: none;
}
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 占位符链接提示 */
a.placeholder { cursor: not-allowed; opacity: 0.85; position: relative; }
a.placeholder:hover { color: var(--text-muted); text-shadow: none; }

/* --- 实况工作台 (Live Workspace) --- */
.workspace-card {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    transition: border-color .3s, box-shadow .3s;
}

.workspace-card:hover {
    border-color: var(--green);
    box-shadow: 0 0 30px rgba(201, 162, 39, 0.12);
}

/* 左栏：视觉 */
.ws-visual {
    position: relative;
    min-height: 320px;
    overflow: hidden;
    background: var(--bg);
}

.ws-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(25%) contrast(108%) brightness(0.95);
    transition: filter .4s ease, transform .4s ease;
}

.workspace-card:hover .ws-img {
    filter: grayscale(0%) contrast(100%) brightness(1);
    transform: scale(1.03);
}

/* 遮罩层 */
.ws-overlay {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(180deg, rgba(15, 39, 68, 0.75) 0%, transparent 25%),
        linear-gradient(0deg, rgba(15, 39, 68, 0.7) 0%, transparent 30%);
    pointer-events: none;
}

/* 扫描线/网格叠加 */
.ws-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        repeating-linear-gradient(0deg, transparent 0 2px, rgba(201, 162, 39, 0.02) 2px 4px),
        repeating-linear-gradient(90deg, transparent 0 2px, rgba(201, 162, 39, 0.02) 2px 4px);
    pointer-events: none;
}

/* 状态标签（左上角） */
.ws-status {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.85rem;
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--green);
    background: rgba(15, 39, 68, 0.85);
    border: 1px solid var(--green);
    border-radius: 4px;
    letter-spacing: 0.05em;
    z-index: 2;
}

.ws-status .dot {
    width: 7px;
    height: 7px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--green-glow); }
    50% { opacity: 0.5; box-shadow: 0 0 4px var(--green-glow); }
}

/* 摄像头标识（右下角） */
.ws-hint {
    position: absolute;
    bottom: 0.8rem;
    right: 1rem;
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    opacity: 0.7;
    z-index: 2;
}

/* 分隔线 */
.workspace-card::before {
    content: "";
    position: absolute;
    left: 60%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--border);
    z-index: 3;
}

/* 右栏：信息 */
.ws-info {
    padding: 1.5rem 1.5rem 1.8rem;
    background: var(--surface-2);
    display: flex;
    flex-direction: column;
}

.ws-line {
    margin-bottom: 1.2rem;
    font-family: var(--mono);
    font-size: 0.9rem;
}

.ws-line .prompt {
    color: var(--green);
    font-weight: 600;
}

.ws-line .cmd-text {
    color: var(--text);
}

/* 进程列表 */
.ws-stats {
    list-style: none;
    margin: 0 0 1.2rem 0;
    padding: 0;
}

.ws-stats li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.65rem 0;
    border-bottom: 1px dashed var(--border);
    font-family: var(--mono);
    font-size: 0.82rem;
}

.ws-stats li:last-child {
    border-bottom: none;
}

.ws-stats .label {
    color: var(--text-muted);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
}

.ws-stats .val {
    color: var(--text);
    text-align: right;
}

/* 描述 */
.ws-desc {
    margin-top: auto;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* --- 响应式 --- */
@media (max-width: 900px) {
    .contact-shell { grid-template-columns: 1fr; }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .hero-visual {
        max-height: 260px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: calc(var(--nav-h) + 40px);
        left: 0; right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: rgba(15, 39, 68, 0.97);
        border-bottom: 1px solid var(--border);
        padding: 0.8rem 1rem 1rem;
        transform: translateY(-8px);
        opacity: 0;
        pointer-events: none;
        transition: all .28s;
    }
    

    
    .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
    .nav-links a { padding: 0.8rem 1rem; }
    .nav-toggle { display: block; }

    .page-head { padding: 2.5rem 0 1rem; }
    .hero { padding: 1.5rem 0; align-items: flex-start; }
    .hero-grid { grid-template-columns: 1fr; gap: 1rem; }
    .hero-visual { max-height: 200px; }
    .term-body { padding: 1rem 1rem; }
    .grid { grid-template-columns: 1fr; }
    
    /* Mobile controls panel */
    .header-controls {
        position: fixed;
        top: var(--nav-h);
        left: 0; right: 0;
        background: rgba(15, 39, 68, 0.97);
        border-bottom: 1px solid var(--border);
        padding: 0.5rem 1rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all .28s;
        justify-content: center;
        z-index: 999;
    }
    
{}
    
    .header-controls.open {
        transform: none;
        opacity: 1;
        pointer-events: auto;
    }
    
    .ctrl-btn {
        padding: 0.3rem 0.5rem;
        font-size: 0.7rem;
    }
}


/* ============================================================
   项目详情页样式
   ============================================================ */

/* --- 详情页容器 --- */
.project-detail {
    padding: 10px;
}

/* --- 返回导航 --- */
.project-nav {
    padding: 1rem 0 2rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-dim);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all .25s;
}

.back-link:hover {
    color: var(--green);
    border-color: var(--green);
    box-shadow: 0 0 12px rgba(201, 162, 39, 0.1);
}

.back-link .arrow {
    font-size: 1rem;
}

/* --- 项目头部 --- */
.project-header {
    padding: 1rem 0 2.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
}

.project-index {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.project-category {
    font-size: 0.85rem;
    color: var(--cyan);
}

.project-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 0.6rem;
    line-height: 1.2;
}

.project-tagline {
    font-size: 1.1rem;
    color: var(--text-dim);
    margin-bottom: 1.2rem;
    max-width: 700px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* --- 项目主视觉 --- */
.project-hero-visual {
    margin-bottom: 1.5rem;
    overflow: hidden;
}

/* 1. 主视觉容器：左右留白，居中，按图片比例撑开 */
.visual-container {
    position: relative;
    width: 92%;                /* 左右各留出 4% 的间隙 */
    max-width: 1280px;         /* 防止在超大屏幕上无限放大 */
    margin: 1rem auto;         /* 上下保留间距，左右自动居中 */
    border-radius: var(--radius);
    border: 1px solid var(--border-bright);
    overflow: hidden;
    background: var(--surface);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

.project-hero-visual .project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* --- Hover 自动播放 YouTube 视频 --- */
.video-hover-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.video-hover-container .video-poster {
    transition: opacity 0.4s ease;
}

.video-hover-container .video-overlay {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    overflow: hidden;
    border-radius: var(--radius);
}

.video-hover-container .video-overlay iframe {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-hover-container .video-poster {
    transition-delay: 0s;
}

.video-hover-container:hover .video-poster {
    opacity: 0;
    transition-delay: 0.6s;
}

.video-hover-container:hover .video-overlay {
    opacity: 1;
    pointer-events: auto;
    transition-delay: 0.1s;
}

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

.info-block .project-img {
    object-fit: cover;
}

.visual-placeholder {
    position: relative;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.visual-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.visual-placeholder .hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

/* --- 信息网格 --- */
.project-info-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 3rem;
    align-items: start;
}

/* --- 主内容区 --- */
.project-main {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.info-block {
    padding: 10px;
    border-bottom: 1px solid var(--border);
}

.info-block:last-child {
    border-bottom: none;
}

.info-block h2 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.info-block h2::before {
    content: "#";
    color: var(--green);
    font-weight: 400;
}

.info-content {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.8;
}

.info-content p {
    margin-bottom: 0.8rem;
}

.info-content p:last-child {
    margin-bottom: 0;
}

.info-content ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.info-content li {
    margin-bottom: 0.5rem;
}

/* --- 特性列表 --- */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all .25s;
}

.feature-item:hover {
    border-color: var(--border-bright);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 1.4rem;
    color: var(--cyan);
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.3rem;
}

.feature-content p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* --- 时间线列表 --- */
.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    padding-left: 1.5rem;
}

.timeline-list::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.timeline-marker {
    position: absolute;
    left: -1.85rem;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--green-glow);
}

.timeline-content h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.3rem;
}

.timeline-content p {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* --- 侧边栏 --- */
.project-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: calc(var(--nav-h) + 2rem);
}

.meta-card,
.links-card,
.inspiration-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem 1.4rem;
}

.meta-card h3,
.links-card h3,
.inspiration-card h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border);
}

.meta-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.meta-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.meta-item dt {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.meta-item dd {
    font-size: 0.85rem;
    color: var(--text);
    text-align: right;
}

/* --- 链接卡片 --- */
.link-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.8rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-dim);
    transition: all .25s;
}

.link-item:hover {
    color: var(--green);
    border-color: var(--green);
    background: rgba(201, 162, 39, 0.05);
}

.link-icon {
    font-size: 1rem;
}

.link-label {
    flex: 1;
}

.link-arrow {
    font-size: 0.9rem;
}

/* --- 灵感来源 --- */
.inspiration-content {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.6;
}

.inspiration-content p {
    margin-bottom: 0.6rem;
}

.inspiration-content p:last-child {
    margin-bottom: 0;
}

/* --- 项目导航 --- */
.project-pagination {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.pagination-btn {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 1rem 1.2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all .25s;
}

.pagination-btn:hover {
    border-color: var(--green);
    box-shadow: 0 0 16px rgba(201, 162, 39, 0.1);
}

.pagination-btn.prev {
    align-items: flex-start;
}

.pagination-btn.next {
    align-items: flex-end;
}

.pagination-btn.all {
    align-items: center;
    justify-content: center;
}

.pagination-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.pagination-title {
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 500;
}

.pagination-btn:hover .pagination-label,
.pagination-btn:hover .pagination-title {
    color: var(--green);
}

/* --- 详情页响应式 --- */
@media (max-width: 900px) {
    .project-info-grid {
        grid-template-columns: 1fr;
    }
    
    .project-sidebar {
        position: static;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1rem;
    }
    
    .project-pagination {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .pagination-btn.prev,
    .pagination-btn.next {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .project-detail {
        padding: 10px;
    }
    
    .project-title {
        font-size: 1.8rem;
    }
    
    .project-tagline {
        font-size: 1rem;
    }
    
    .project-sidebar {
        grid-template-columns: 1fr;
    }
}


/* --- 可体验入口卡片 --- */
.playable-card {
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.08), rgba(126, 184, 224, 0.08));
    border: 1px solid var(--green);
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 1.5rem;
}

.playable-card h3 {
    font-size: 0.85rem;
    color: var(--green);
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.playable-intro {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.playable-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 2rem;
    background: var(--green);
    color: var(--bg);
    font-family: var(--mono);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all .3s;
    box-shadow: 0 0 20px var(--green-glow);
}

.playable-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--green-glow), 0 8px 20px rgba(201, 162, 39, 0.3);
}

.play-icon {
    font-size: 1.1rem;
}

/* --- 开发动机区块 --- */
.motivation-block {
    background: linear-gradient(180deg, var(--surface-2), var(--surface));
    border-left: 3px solid var(--cyan);
}

.motivation-content p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.motivation-content p:last-child {
    margin-bottom: 0;
}

/* --- 独立开发说明 --- */
.indie-dev-block {
    background: var(--surface);
    border-left: 3px solid var(--violet);
}

.indie-dev-content p {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text);
    margin-bottom: 1rem;
}

.indie-dev-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* --- 开发故事区块 --- */
.story-block {
    background: var(--surface);
    border: 1px solid var(--border);
}

.story-content {
    display: grid;
    gap: 2rem;
}

.story-section {
    position: relative;
    padding-left: 1.5rem;
}

.story-section::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.4rem;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px var(--green-glow);
}

.story-section:nth-child(1)::before { background: var(--violet); box-shadow: 0 0 10px rgba(155, 126, 200, 0.4); }
.story-section:nth-child(2)::before { background: var(--cyan); box-shadow: 0 0 10px var(--cyan-glow); }
.story-section:nth-child(3)::before { background: #ef4444; box-shadow: 0 0 10px rgba(239, 68, 68, 0.4); }
.story-section:nth-child(4)::before { background: #f59e0b; box-shadow: 0 0 10px rgba(245, 158, 11, 0.4); }
.story-section:nth-child(5)::before { background: var(--green); box-shadow: 0 0 10px var(--green-glow); }

.story-section h3 {
    font-size: 1rem;
    color: var(--text);
    margin-bottom: 0.6rem;
    font-weight: 600;
}

.story-section:nth-child(1) h3 { color: var(--violet); }
.story-section:nth-child(2) h3 { color: var(--cyan); }
.story-section:nth-child(3) h3 { color: #ef4444; }
.story-section:nth-child(4) h3 { color: #f59e0b; }
.story-section:nth-child(5) h3 { color: var(--green); }

.story-section p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--text-dim);
}

/* --- 响应式调整 --- */
@media (max-width: 768px) {
    .playable-card {
        padding: 1.2rem;
    }
    
    .playable-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .story-section {
        padding-left: 1rem;
    }
}

/* ============================================================
   Projects 页面 — 大图网格样式
   ============================================================ */

/* --- 顶部 Hero 区 --- */
.projects-hero {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2.5rem;
    align-items: center;
    padding: 4rem 0 2rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}
.projects-hero-content h1 {
    font-size: clamp(2.4rem, 5.5vw, 4rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
    letter-spacing: -0.02em;
}
.projects-hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-dim);
    margin-top: 0.6rem;
    font-style: italic;
    font-weight: 300;
}
.projects-hero-visual {
    position: relative;
    z-index: 1;
}

/* --- Polaroid 相框 --- */
.polaroid {
    display: inline-block;
    transform: rotate(2.5deg);
    transition: transform 0.3s ease;
}
.polaroid:hover {
    transform: rotate(0deg) scale(1.02);
}
.polaroid-frame {
    background: #faf8f5;
    padding: 10px 10px 32px 10px;
    border-radius: 3px;
    box-shadow:
        0 1px 0 rgba(0,0,0,0.08),
        0 8px 24px rgba(0,0,0,0.35),
        0 16px 48px rgba(0,0,0,0.25),
        inset 0 0 0 1px rgba(0,0,0,0.06);
    position: relative;
}
.polaroid-frame img {
    width: 100%;
    height: 210px;
    object-fit: cover;
    display: block;
    border-radius: 2px;
    filter: grayscale(15%) contrast(105%) brightness(0.95);
    transition: filter 0.4s ease;
}
.polaroid:hover .polaroid-frame img {
    filter: grayscale(0%) contrast(100%) brightness(1);
}

/* --- 图钉 --- */
.polaroid-pin {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #ff6b5b, #c0392b 60%, #8a2218);
    box-shadow:
        0 2px 4px rgba(0,0,0,0.4),
        0 4px 8px rgba(0,0,0,0.2),
        inset 0 -2px 3px rgba(0,0,0,0.25);
    z-index: 10;
}
.polaroid-pin::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.6), rgba(255,255,255,0.1));
}

/* --- 项目网格 --- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    grid-auto-rows: 220px;
    grid-auto-flow: row dense;
    gap: 1rem;
}

/* --- 项目卡片 --- */
.project-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-bright);
    background: var(--surface);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4), 0 0 20px rgba(201,162,39,0.12);
}

/* 编号角标 */
.project-card-number {
    position: absolute;
    top: 0.6rem;
    left: 0.6rem;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--bg);
    background: var(--text);
    border-radius: 4px;
    z-index: 4;
    letter-spacing: 0;
}

/* 视觉区 */
.project-card-visual {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--bg);
}
.project-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: grayscale(20%) contrast(105%);
}
.project-card:hover .project-card-img {
    transform: scale(1.05);
    filter: grayscale(0%) contrast(100%);
}
.project-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(201,162,39,0.06), rgba(126,184,224,0.06)),
                repeating-linear-gradient(0deg, transparent 0 3px, rgba(15,39,68,0.9) 3px 4px);
}
.project-card-placeholder .hint-text {
    color: var(--text-muted);
    font-size: 0.85rem;
    letter-spacing: 0.08em;
}

/* 底部标题栏（默认状态） */
.project-card-title {
    padding: 0.55rem 0.9rem;
    background: var(--surface-2);
    border-top: 1px solid var(--border);
    z-index: 3;
    position: relative;
    transition: opacity 0.3s ease;
}
.project-card:hover .project-card-title {
    opacity: 0;
}
.project-card-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* hover 浮现信息遮罩 */
.project-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15,39,68,0.92) 0%, rgba(15,39,68,0.75) 60%, rgba(15,39,68,0.9) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 5;
}
.project-card:hover .project-card-overlay {
    opacity: 1;
    pointer-events: auto;
}
.project-card-desc {
    font-size: 0.78rem;
    color: var(--text-dim);
    line-height: 1.5;
    margin-bottom: 0.6rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.6rem;
}
.project-tag {
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    background: rgba(201,162,39,0.15);
    color: var(--green);
    border: 1px solid rgba(201,162,39,0.35);
    letter-spacing: 0.02em;
}
.project-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--green);
    font-weight: 600;
    align-self: flex-end;
    pointer-events: auto;
    text-decoration: none;
}
.project-card-link .arr {
    transition: transform 0.25s ease;
}
.project-card-link:hover .arr {
    transform: translateX(4px);
}

/* 基于 data-col-span / data-row-span 的网格跨度 */
.project-card[data-col-span="2"] { grid-column: span 2; }
.project-card[data-col-span="3"] { grid-column: span 3; }
.project-card[data-col-span="4"] { grid-column: span 4; }
.project-card[data-row-span="2"] { grid-row: span 2; }
.project-card[data-row-span="3"] { grid-row: span 3; }

/* 跨多行时视觉区自适应 */
.project-card[data-row-span="2"] .project-card-visual {
    flex: 2;
}

/* Light theme 适配 */
    background: linear-gradient(180deg, rgba(232,239,245,0.94) 0%, rgba(232,239,245,0.78) 60%, rgba(232,239,245,0.92) 100%);
}
    color: #fff;
    background: var(--text);
}
    background: linear-gradient(135deg, rgba(160,120,24,0.05), rgba(74,138,184,0.05)),
                repeating-linear-gradient(0deg, transparent 0 3px, rgba(200,210,220,0.5) 3px 4px);
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
    .projects-hero {
        grid-template-columns: 1fr 300px;
    }
    .projects-hero-visual img {
        height: 200px;
    }
}

@media (max-width: 900px) {
    .projects-hero {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 2.5rem 0 1rem;
    }
    .projects-hero-visual {
        max-width: 400px;
    }
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 200px;
        grid-auto-flow: row dense;
    }
}

@media (max-width: 560px) {
    .project-grid {
        grid-template-columns: 1fr;
        grid-template-rows: none;
        grid-auto-rows: 200px;
    }
    .project-card { grid-column: auto; grid-row: auto; }
    .project-card[data-col-span] { grid-column: span 1; }
    .project-card[data-row-span="2"] { grid-row: span 2; }
}