/* ==========================================================================
   Eric's Portfolio — 全站共用樣式
   結構：1.變數  2.基礎  3.背景  4.導覽列  5.共用元件  6.首頁區塊  7.詳情頁  8.動畫/RWD
   ========================================================================== */

/* ---------- 1. 主題變數 ---------- */
:root {
    --bg: #070b16;
    --bg-soft: #0c1324;
    --surface: rgba(15, 23, 42, 0.72);
    --surface-solid: #0f172a;
    --border: rgba(148, 163, 184, 0.12);
    --border-strong: rgba(56, 189, 248, 0.45);
    --text: #e2e8f0;
    --text-strong: #ffffff;
    --muted: #94a3b8;
    --accent: #38bdf8;
    --accent-2: #818cf8;
    --accent-3: #fbbf24;
    --success: #4ade80;
    --glow: rgba(56, 189, 248, 0.18);
    --nav-bg: rgba(7, 11, 22, 0.72);
    --grid-line: rgba(148, 163, 184, 0.05);
    --blob-opacity: 0.35;
    --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);

    --font-display: 'Space Grotesk', 'Noto Sans TC', sans-serif;
    --font-body: 'Inter', 'Noto Sans TC', sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    --radius: 20px;
    --nav-h: 72px;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="light"] {
    --bg: #f5f7fb;
    --bg-soft: #eaf0f7;
    --surface: rgba(255, 255, 255, 0.82);
    --surface-solid: #ffffff;
    --border: rgba(15, 23, 42, 0.08);
    --border-strong: rgba(2, 132, 199, 0.45);
    --text: #1e293b;
    --text-strong: #0f172a;
    --muted: #526077;
    --accent: #0284c7;
    --accent-2: #6366f1;
    --accent-3: #d97706;
    --success: #16a34a;
    --glow: rgba(2, 132, 199, 0.12);
    --nav-bg: rgba(245, 247, 251, 0.8);
    --grid-line: rgba(15, 23, 42, 0.045);
    --blob-opacity: 0.18;
    --shadow: 0 20px 50px rgba(15, 23, 42, 0.08);
}

/* ---------- 2. 基礎 ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    transition: background-color .3s, color .3s;
}

a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button { font: inherit; }
ul, ol { list-style: none; }

::selection { background: var(--accent); color: #fff; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 32px; }

/* ---------- 3. 背景（光暈 + 格線） ---------- */
.bg-fx { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.bg-fx::before {           /* 細格線，增加「工程感」 */
    content: ""; position: absolute; inset: 0;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 100%);
}
.blob {
    position: absolute; width: 480px; height: 480px; border-radius: 50%;
    filter: blur(110px); opacity: var(--blob-opacity);
    animation: drift 22s ease-in-out infinite alternate;
}
.blob-1 { background: var(--accent);   top: -12%; left: -8%; }
.blob-2 { background: var(--accent-2); top: 30%;  right: -12%; animation-delay: -7s; }
.blob-3 { background: var(--accent-3); bottom: -20%; left: 30%; width: 360px; height: 360px; opacity: calc(var(--blob-opacity) * .5); animation-delay: -14s; }

@keyframes drift {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(120px, 80px) scale(1.1); }
    100% { transform: translate(-60px, 140px) scale(.95); }
}

/* 頁面頂端捲動進度條 */
.scroll-progress {
    position: fixed; top: 0; left: 0; height: 2px; width: 100%; z-index: 1100;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transform-origin: 0 50%; transform: scaleX(0);
}

/* ---------- 4. 導覽列 ---------- */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); z-index: 1000;
    display: flex; align-items: center;
    border-bottom: 1px solid transparent;
    transition: background .3s, border-color .3s, backdrop-filter .3s;
}
.navbar.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom-color: var(--border);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; }

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; color: var(--text-strong); }
.brand img { height: 36px; width: auto; transition: transform .4s var(--ease); }
.brand:hover img { transform: rotate(-8deg) scale(1.06); }
[data-theme="light"] .brand img { filter: none; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
    position: relative; padding: 8px 14px; border-radius: 999px;
    font-size: .92rem; color: var(--muted); transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--text-strong); }
.nav-links a.active { color: var(--text-strong); background: var(--glow); }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
    width: 40px; height: 40px; display: grid; place-items: center;
    background: transparent; border: 1px solid var(--border); border-radius: 12px;
    color: var(--text); cursor: pointer; font-size: 1rem;
    transition: border-color .2s, color .2s, transform .2s;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.icon-btn:active { transform: scale(.94); }
.menu-btn { display: none; }

/* 手機版選單 */
.mobile-menu {
    position: fixed; top: var(--nav-h); left: 16px; right: 16px; z-index: 999;
    background: var(--surface-solid); border: 1px solid var(--border); border-radius: 16px;
    box-shadow: var(--shadow); padding: 8px;
    opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity .25s, transform .25s var(--ease);
}
.mobile-menu.open { opacity: 1; transform: none; pointer-events: auto; }
.mobile-menu a { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 10px; }
.mobile-menu a:hover { background: var(--glow); color: var(--accent); }
.mobile-menu i { width: 18px; text-align: center; color: var(--muted); }

/* ---------- 5. 共用元件 ---------- */
.section { padding: 120px 0; position: relative; }

.section-head { margin-bottom: 56px; max-width: 640px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }
.section-title {
    font-family: var(--font-display); font-size: clamp(1.9rem, 4vw, 2.75rem);
    line-height: 1.2; font-weight: 700; color: var(--text-strong); letter-spacing: -0.01em;
}
.section-sub { margin-top: 14px; color: var(--muted); }

.card {
    position: relative; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    transition: transform .4s var(--ease), border-color .3s, box-shadow .3s;
}
/* 滑鼠跟隨光暈：由 JS 寫入 --mx / --my */
.card.spotlight::before {
    content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0;
    background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), var(--glow), transparent 45%);
    transition: opacity .3s;
}
.card.spotlight:hover::before { opacity: 1; }
a.card:hover, .card.lift:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow); }

.chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 12px; border-radius: 999px; font-size: .8rem;
    background: var(--glow); color: var(--accent); border: 1px solid transparent;
    font-family: var(--font-mono);
}
.chip.muted { background: transparent; border-color: var(--border); color: var(--muted); }

.btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 12px 22px; border-radius: 12px; font-weight: 600; font-size: .95rem;
    border: 1px solid var(--border); cursor: pointer; transition: transform .2s, box-shadow .2s, border-color .2s, background .2s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border-color: transparent;
    box-shadow: 0 8px 30px -8px var(--accent);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -10px var(--accent); }
.btn-ghost { background: var(--surface); color: var(--text-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; font-size: .92rem; }
.link-arrow i { transition: transform .25s var(--ease); }
a:hover .link-arrow i, .link-arrow:hover i { transform: translateX(4px); }

.gradient-text {
    background: linear-gradient(100deg, var(--accent), var(--accent-3), var(--accent-2), var(--accent));
    background-size: 300% auto;
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    animation: shine 6s linear infinite;
}
@keyframes shine { to { background-position: 300% center; } }

/* ---------- 6. 首頁區塊 ---------- */

/* Hero */
.hero { min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--nav-h) + 40px) 0 80px; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: center; }

.status-pill {
    display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 10px;
    border: 1px solid var(--border); border-radius: 999px; background: var(--surface);
    font-size: .85rem; color: var(--muted); margin-bottom: 28px;
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 0 var(--success); animation: ping 2s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(74,222,128,.6); } 100% { box-shadow: 0 0 0 10px rgba(74,222,128,0); } }

.hero h1 {
    font-family: var(--font-display); font-weight: 700; color: var(--text-strong);
    font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.08; letter-spacing: -0.03em;
}
.hero h1 .line-2 { display: block; color: var(--muted); font-weight: 500; font-size: .62em; letter-spacing: -0.015em; margin-top: 14px; line-height: 1.3; }

.typed-line {
    margin-top: 26px; font-family: var(--font-mono); font-size: clamp(.95rem, 1.6vw, 1.1rem); color: var(--text);
    min-height: 1.8em;
}
.typed-line .prompt { color: var(--accent); margin-right: 8px; }
.typed { color: var(--text-strong); }
.caret { display: inline-block; width: 9px; height: 1.1em; margin-left: 2px; background: var(--accent); vertical-align: -0.18em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-desc { margin-top: 18px; color: var(--muted); max-width: 520px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.social { display: flex; gap: 10px; margin-top: 28px; }
.social a {
    width: 42px; height: 42px; display: grid; place-items: center; border-radius: 12px;
    border: 1px solid var(--border); color: var(--muted); font-size: 1.1rem; transition: .2s;
}
.social a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

/* Hero 右側：程式碼卡片 */
.hero-visual { position: relative; }
.avatar-ring {
    position: absolute; top: -34px; right: -10px; z-index: 2;
    width: 96px; height: 96px; border-radius: 50%; padding: 3px;
    background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
    animation: spin 8s linear infinite;
    box-shadow: 0 0 60px var(--glow);
}
.avatar-ring .avatar {
    width: 100%; height: 100%; border-radius: 50%; background: #000; display: grid; place-items: center; overflow: hidden;
    animation: spin 8s linear infinite reverse;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
@keyframes spin { to { transform: rotate(360deg); } }

.code-card { padding: 0; font-family: var(--font-mono); font-size: .86rem; box-shadow: var(--shadow); }
.code-card .bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.code-card .bar span { width: 11px; height: 11px; border-radius: 50%; background: #ef4444; }
.code-card .bar span:nth-child(2) { background: #f59e0b; }
.code-card .bar span:nth-child(3) { background: #22c55e; }
.code-card .bar em { margin-left: 10px; font-style: normal; color: var(--muted); font-size: .78rem; }
.code-card pre { padding: 22px 22px 26px; line-height: 1.85; overflow-x: auto; color: var(--text); white-space: pre; }
.tok-k { color: #c084fc; } .tok-s { color: #4ade80; } .tok-p { color: var(--accent); } .tok-c { color: var(--muted); font-style: italic; } .tok-n { color: var(--accent-3); }
[data-theme="light"] .tok-k { color: #9333ea; } [data-theme="light"] .tok-s { color: #15803d; }

.scroll-hint {
    position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%);
    font-family: var(--font-mono); font-size: .72rem; letter-spacing: .2em; color: var(--muted);
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.scroll-hint::after { content: ""; width: 1px; height: 36px; background: linear-gradient(var(--accent), transparent); animation: drip 2s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* 數據列 */
.stats { padding: 0 0 40px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.stat { padding: 30px 24px; text-align: center; }
.stat + .stat { border-left: 1px solid var(--border); }
.stat-num { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; color: var(--text-strong); line-height: 1; }
.stat-num sup { font-size: .45em; color: var(--accent); margin-left: 2px; vertical-align: super; }
.stat-label { margin-top: 10px; font-size: .88rem; color: var(--muted); }

/* 精選作品 */
.feature { display: grid; grid-template-columns: 1.15fr 1fr; gap: 0; }
.feature-body { padding: 44px; display: flex; flex-direction: column; }
.feature-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.feature-badges .chip.gold { background: rgba(251, 191, 36, .14); color: var(--accent-3); }
.feature h3 { font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.1rem); color: var(--text-strong); line-height: 1.25; }
.feature h3 small { display: block; font-size: .5em; font-family: var(--font-mono); color: var(--muted); font-weight: 400; margin-top: 8px; letter-spacing: .02em; }
.feature p { color: var(--muted); margin-top: 16px; }
.feature-points { margin-top: 22px; display: grid; gap: 12px; }
.feature-points li { display: flex; gap: 12px; align-items: flex-start; font-size: .95rem; }
.feature-points i { color: var(--success); margin-top: 6px; font-size: .85rem; }
.tech-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.feature-body .link-arrow { margin-top: auto; padding-top: 30px; }

.feature-media {
    position: relative; min-height: 420px; display: grid; place-items: center;
    background:
        radial-gradient(circle at 30% 20%, rgba(56,189,248,.25), transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(129,140,248,.25), transparent 50%),
        var(--bg-soft);
    border-left: 1px solid var(--border);
}
.phone {
    width: 210px; aspect-ratio: 590 / 1280; border-radius: 30px; padding: 8px; background: #0b0b0f;
    box-shadow: 0 30px 60px rgba(0,0,0,.45), 0 0 0 1px rgba(255,255,255,.08);
    transform: rotate(-4deg); transition: transform .6s var(--ease);
}
.feature:hover .phone { transform: rotate(0) translateY(-6px); }
.phone video { width: 100%; height: 100%; object-fit: cover; border-radius: 22px; }

.mini-projects { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 20px; }
.mini { padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.mini .mini-icon { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 12px; background: var(--glow); color: var(--accent); font-size: 1.1rem; }
.mini h4 { font-family: var(--font-display); font-size: 1.2rem; color: var(--text-strong); }
.mini p { color: var(--muted); font-size: .93rem; }

/* 經歷時間軸 */
.timeline { position: relative; display: grid; gap: 24px; padding-left: 36px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2), transparent); }
.tl-item { position: relative; }
.tl-item::before {
    content: ""; position: absolute; left: -36px; top: 30px; width: 16px; height: 16px; border-radius: 50%;
    background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 0 5px var(--glow);
}
.tl-card { display: grid; grid-template-columns: 1fr auto; gap: 8px 24px; padding: 28px 30px; }
.tl-date { font-family: var(--font-mono); font-size: .82rem; color: var(--accent); }
.tl-card h3 { font-family: var(--font-display); font-size: 1.3rem; color: var(--text-strong); grid-column: 1; }
.tl-role { grid-column: 1; color: var(--muted); font-size: .95rem; }
.tl-highlights { grid-column: 1 / -1; margin-top: 12px; display: grid; gap: 6px; }
.tl-highlights li { position: relative; padding-left: 18px; font-size: .94rem; }
.tl-highlights li::before { content: "▹"; position: absolute; left: 0; color: var(--accent); }
.tl-card .link-arrow { grid-column: 2; grid-row: 1 / span 3; align-self: center; }
.tl-tags { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }

/* 榮譽 */
.honors-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.honor { display: flex; gap: 20px; padding: 28px; align-items: flex-start; }
.honor-badge {
    flex-shrink: 0; width: 64px; height: 64px; border-radius: 16px; display: grid; place-items: center;
    font-family: var(--font-display); font-weight: 700; font-size: 1.35rem; color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.honor-badge.gold { background: linear-gradient(135deg, #fbbf24, #f97316); }
.honor-badge.green { background: linear-gradient(135deg, #34d399, #0ea5e9); }
.honor-badge.violet { background: linear-gradient(135deg, #a78bfa, #6366f1); }
.honor-meta { font-family: var(--font-mono); font-size: .78rem; color: var(--muted); }
.honor h3 { font-family: var(--font-display); font-size: 1.15rem; color: var(--text-strong); margin: 4px 0 6px; line-height: 1.4; }
.honor p { font-size: .92rem; color: var(--muted); }
.honor .link-arrow { margin-top: 12px; font-size: .85rem; }

/* 關於我 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about-text p { color: var(--muted); font-size: 1.05rem; }
.about-text p + p { margin-top: 16px; }
.about-text strong { color: var(--text-strong); font-weight: 600; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fact { padding: 22px; }
.fact i { color: var(--accent); margin-bottom: 12px; font-size: 1.1rem; }
.fact h4 { font-size: .8rem; color: var(--muted); font-weight: 500; font-family: var(--font-mono); letter-spacing: .05em; }
.fact p { color: var(--text-strong); font-weight: 600; margin-top: 4px; }

/* 技能 */
.skills-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.skill-group { padding: 26px; }
.skill-group header { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.skill-group header i { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--glow); color: var(--accent); }
.skill-group h3 { font-family: var(--font-display); font-size: 1.05rem; color: var(--text-strong); }
.skill-list { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-list li {
    display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 8px;
    font-size: .86rem; border: 1px solid var(--border); background: var(--bg-soft); transition: .2s;
}
.skill-list li:hover { border-color: var(--accent); color: var(--accent); }
.skill-list li i { font-size: .95rem; }

.marquee { margin-top: 48px; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 48px; width: max-content; animation: marquee 32s linear infinite; }
.marquee-track span { font-family: var(--font-display); font-size: clamp(1.4rem, 3vw, 2.2rem); font-weight: 700; color: transparent; -webkit-text-stroke: 1px var(--muted); opacity: .5; white-space: nowrap; }
.marquee-track span:nth-child(3n+1) { color: var(--text-strong); -webkit-text-stroke: 0; opacity: .14; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 聯絡 */
.contact-card { padding: 64px 48px; text-align: center; }
.contact-card::after {
    content: ""; position: absolute; inset: -1px; border-radius: inherit; pointer-events: none; padding: 1px;
    background: linear-gradient(135deg, var(--accent), transparent 40%, transparent 60%, var(--accent-2));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
}
.contact-card .section-title { font-size: clamp(2rem, 5vw, 3.2rem); }
.contact-card p { color: var(--muted); max-width: 520px; margin: 16px auto 0; }
.contact-card .hero-cta { justify-content: center; }
.contact-card .social { justify-content: center; }
.copy-toast { font-family: var(--font-mono); font-size: .8rem; color: var(--success); margin-top: 14px; min-height: 1.2em; }

footer { padding: 40px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: .85rem; color: var(--muted); }
.footer-inner a:hover { color: var(--accent); }

/* ---------- 7. 詳情頁 ---------- */
.detail { padding: calc(var(--nav-h) + 48px) 0 80px; }
.detail .container { max-width: 860px; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: .92rem; margin-bottom: 36px; transition: color .2s; }
.back-link i { transition: transform .25s var(--ease); }
.back-link:hover { color: var(--accent); }
.back-link:hover i { transform: translateX(-4px); }

.detail-head { margin-bottom: 40px; }
.detail-head .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.detail-head h1 { font-family: var(--font-display); font-size: clamp(1.9rem, 5vw, 2.8rem); line-height: 1.25; color: var(--text-strong); letter-spacing: -0.01em; }
.detail-head .meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 20px; color: var(--muted); font-size: .92rem; }
.detail-head .meta i { color: var(--accent); margin-right: 6px; }

.detail-body { padding: 44px; }
.detail-body h2 {
    font-family: var(--font-display); font-size: 1.3rem; color: var(--text-strong);
    display: flex; align-items: center; gap: 12px; margin: 40px 0 14px;
}
.detail-body h2:first-child { margin-top: 0; }
.detail-body h2::before { content: ""; width: 4px; height: 1.1em; border-radius: 2px; background: linear-gradient(var(--accent), var(--accent-2)); }
.detail-body p { color: var(--text); }
.detail-body p + p { margin-top: 12px; }
.detail-body strong { color: var(--text-strong); }

.points { display: grid; gap: 12px; }
.points li { display: flex; gap: 14px; padding: 16px 18px; border-radius: 12px; background: var(--bg-soft); border: 1px solid var(--border); }
.points li i { color: var(--success); margin-top: 6px; font-size: .85rem; }

.media-figure { margin: 36px auto 0; text-align: center; }
.media-figure img { margin: 0 auto; max-width: min(100%, 560px); border-radius: 14px; border: 1px solid var(--border); box-shadow: var(--shadow); cursor: zoom-in; background: #fff; }
.media-figure figcaption { margin-top: 12px; font-size: .85rem; color: var(--muted); }
.media-figure .phone { margin: 0 auto; transform: none; width: 260px; }

.detail-pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 32px; }
.detail-pager a { padding: 20px 24px; }
.detail-pager small { display: block; font-family: var(--font-mono); font-size: .75rem; color: var(--muted); margin-bottom: 4px; }
.detail-pager span { color: var(--text-strong); font-weight: 600; }
.detail-pager .next { text-align: right; }

/* 圖片放大 */
.lightbox { position: fixed; inset: 0; z-index: 2000; display: grid; place-items: center; padding: 24px; background: rgba(2,6,23,.86); backdrop-filter: blur(6px); opacity: 0; pointer-events: none; transition: opacity .25s; cursor: zoom-out; }
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img { max-height: 90vh; max-width: 92vw; border-radius: 12px; background: #fff; }

/* ---------- 8. 進場動畫 / 無障礙 / RWD ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1024px) {
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .nav-links { display: none; }
    .menu-btn { display: grid; }
    .hero-grid, .about-grid, .feature { grid-template-columns: 1fr; }
    .hero-visual { max-width: 520px; }
    .feature-media { border-left: 0; border-top: 1px solid var(--border); min-height: 380px; order: -1; }
    .honors-grid, .mini-projects { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat:nth-child(3) { border-left: 0; }
    .stat:nth-child(n+3) { border-top: 1px solid var(--border); }
    .scroll-hint { display: none; }
}

@media (max-width: 600px) {
    .container { padding: 0 16px; }
    .section { padding: 84px 0; }
    .hero { min-height: auto; padding-top: calc(var(--nav-h) + 32px); }
    .avatar-ring { width: 76px; height: 76px; top: -28px; right: 4px; }
    .code-card { font-size: .76rem; }
    .code-card pre { padding: 18px; }
    .feature-body, .detail-body { padding: 28px 22px; }
    .skills-grid, .facts { grid-template-columns: 1fr; }
    .tl-card { grid-template-columns: 1fr; padding: 24px 22px; }
    .tl-card .link-arrow { grid-column: 1; grid-row: auto; margin-top: 8px; }
    .timeline { padding-left: 28px; }
    .tl-item::before { left: -28px; }
    .timeline::before { left: 6px; }
    .honor { padding: 22px; gap: 16px; }
    .honor-badge { width: 52px; height: 52px; font-size: 1.1rem; }
    .contact-card { padding: 44px 22px; }
    .footer-inner { flex-direction: column; text-align: center; }
    .detail-pager { grid-template-columns: 1fr; }
    .detail-pager .next { text-align: left; }
}

/* 時間軸：現職 */
.tl-item.current::before { border-color: var(--success); box-shadow: 0 0 0 5px rgba(74, 222, 128, .18); }
.now-badge { display: inline-flex; align-items: center; gap: 8px; padding: 2px 10px 2px 8px; border-radius: 999px; background: rgba(74, 222, 128, .12); color: var(--success); }
.now-badge .status-dot { width: 7px; height: 7px; }