/* theez.top 个人主页 — 2026-10 重构 */
:root {
    --ink: #ffffff;
    --ink-2: rgba(255, 255, 255, 0.56);
    --ink-3: rgba(255, 255, 255, 0.34);
    --line: rgba(255, 255, 255, 0.09);
    --line-2: rgba(255, 255, 255, 0.2);
    --surface: rgba(255, 255, 255, 0.035);
    --surface-2: rgba(255, 255, 255, 0.07);
    --glass: blur(18px);
    --sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --mono: 'Space Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --radius: 4px;
    --pad-x: clamp(1.25rem, 4vw, 3rem);
    --measure: 980px;
    --nav-h: 64px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--sans);
    background: #000000;
    color: var(--ink);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
    font-weight: 300;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: rgba(255, 255, 255, 0.85); color: #000; }

.skip {
    position: fixed; top: -60px; left: 1rem; z-index: 4000;
    padding: 0.6rem 1rem; background: var(--ink); color: #000;
    font-size: 0.8rem; letter-spacing: 1px; border-radius: var(--radius);
    transition: top 0.3s var(--ease);
}
.skip:focus { top: 1rem; }

/* 背景视频 */
.sky {
    position: fixed; inset: 0; z-index: -2;
    overflow: hidden; pointer-events: none;
}
.sky video {
    width: 100%; height: 100%;
    object-fit: cover;
    opacity: 0.55;
    transform-origin: 50% 50%;
    will-change: transform;
}
.sky-veil {
    position: absolute; inset: 0;
    background: linear-gradient(180deg,
        rgba(0, 0, 0, 0.45) 0%,
        rgba(0, 0, 0, 0.72) 45%,
        rgba(0, 0, 0, 0.92) 100%);
}

/* 顶部阅读进度 */
.progress {
    position: fixed; top: 0; left: 0; right: 0; height: 2px;
    z-index: 1500; background: rgba(255, 255, 255, 0.06);
}
.progress span {
    display: block; height: 100%; width: 100%;
    background: var(--ink);
    transform: scaleX(0); transform-origin: 0 50%;
}

/* 导航 */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1200;
    height: var(--nav-h);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 var(--pad-x);
    background: rgba(0, 0, 0, 0.28);
    border-bottom: 1px solid transparent;
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    transition: background 0.5s var(--ease), border-color 0.5s var(--ease);
}
.nav.scrolled {
    background: rgba(0, 0, 0, 0.86);
    border-bottom-color: var(--line);
}
.nav-logo {
    font-size: 1.15rem; letter-spacing: 6px; color: var(--ink);
    font-weight: 500;
}
.nav-links ul {
    display: flex; gap: 2rem; list-style: none;
}
.nav-links a {
    position: relative;
    display: inline-block;
    padding: 0.35rem 0;
    font-size: 0.82rem; letter-spacing: 2px;
    color: var(--ink-2);
    transition: color 0.35s var(--ease);
}
.nav-links a::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: 0;
    height: 1px; background: var(--ink);
    transform: scaleX(0); transform-origin: 0 50%;
    transition: transform 0.4s var(--ease);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--ink); }

.nav-toggle {
    display: none;
    width: 40px; height: 40px; border-radius: var(--radius);
    border: 1px solid var(--line); color: var(--ink-2);
    align-items: center; justify-content: center;
    font-size: 0.95rem;
}

/* 首屏 */
.hero {
    min-height: 100svh;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center;
    padding: calc(var(--nav-h) + 3rem) var(--pad-x) 6rem;
    position: relative;
}
.hero-inner {
    max-width: 720px;
    will-change: transform, opacity;
}
.hero-badge {
    display: inline-block;
    margin-bottom: 2.2rem;
    padding: 0.6rem 1.6rem;
    border: 1px solid var(--line-2);
    border-radius: var(--radius);
    background: var(--surface);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    font-family: var(--mono);
    font-size: 0.7rem; letter-spacing: 3px; text-transform: uppercase;
    color: var(--ink-2);
}
.hero-title {
    font-size: clamp(2.1rem, 7vw, 4.4rem);
    font-weight: 300; line-height: 1.2; letter-spacing: 3px;
    margin-bottom: 1.4rem;
}
.typing-text {
    display: inline-block; min-width: 2ch;
    border-right: 1px solid var(--ink);
    animation: blink 1s step-end infinite;
}
@keyframes blink {
    0%, 50% { border-color: var(--ink); }
    51%, 100% { border-color: transparent; }
}
.hero-subtitle {
    font-size: clamp(0.9rem, 2.2vw, 1rem);
    color: var(--ink-2);
    line-height: 2;
    margin-bottom: 2.6rem;
}
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.9rem 2rem;
    border-radius: 2px;
    font-size: 0.78rem; letter-spacing: 2px; text-transform: uppercase;
    transition: transform 0.5s var(--ease), background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.btn-primary { background: var(--ink); color: #000; border: 1px solid var(--ink); }
.btn-primary:hover { background: transparent; color: var(--ink); transform: translateY(-2px); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--ink); }
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); }

.scroll-cue {
    position: absolute; left: 50%; bottom: 2.4rem;
    transform: translateX(-50%);
    width: 1px; height: 54px;
    background: linear-gradient(to bottom, transparent, var(--line-2));
    overflow: hidden;
}
.scroll-cue::after {
    content: ''; position: absolute; left: 0; top: 0;
    width: 1px; height: 18px; background: var(--ink);
    animation: cue 2.4s var(--ease) infinite;
}
@keyframes cue {
    0% { transform: translateY(-20px); opacity: 0; }
    40% { opacity: 1; }
    100% { transform: translateY(54px); opacity: 0; }
}

/* 区块 */
.wrap {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 0 var(--pad-x);
}
.section {
    position: relative;
    padding: clamp(4rem, 9vh, 7rem) 0;
    overflow: hidden;
    scroll-margin-top: var(--nav-h);
}
.section + .section { border-top: 1px solid var(--line); }

.ghost {
    position: absolute;
    top: clamp(1.5rem, 5vw, 3rem);
    right: var(--pad-x);
    font-family: var(--mono);
    font-size: clamp(4.5rem, 16vw, 11rem);
    line-height: 1;
    color: rgba(255, 255, 255, 0.045);
    letter-spacing: -2px;
    pointer-events: none;
    user-select: none;
    will-change: transform;
}

.section-head { margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.kicker {
    display: block;
    font-family: var(--mono);
    font-size: 0.68rem; letter-spacing: 3px; text-transform: uppercase;
    color: var(--ink-3);
    margin-bottom: 0.7rem;
}
.section-head h2 {
    font-size: clamp(1.5rem, 3.6vw, 2rem);
    font-weight: 300; letter-spacing: 3px;
}
.section-head::after {
    content: ''; display: block;
    width: 48px; height: 1px; margin-top: 1.2rem;
    background: var(--line-2);
}

/* 卡片 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: 1rem;
}
.card {
    position: relative;
    overflow: hidden;
    padding: clamp(1.4rem, 3vw, 2rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
    transition: transform 0.6s var(--ease), background 0.4s var(--ease), border-color 0.4s var(--ease);
}
.card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: var(--line-2);
    transform: scaleX(0); transform-origin: 0 50%;
    transition: transform 0.6s var(--ease);
}
.card:hover { background: var(--surface-2); border-color: var(--line-2); transform: translateY(-3px); }
.card:hover::before { transform: scaleX(1); }
.card-icon {
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.2rem;
    border: 1px solid var(--line); border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink-2);
    font-size: 1.05rem;
    transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
}
.card:hover .card-icon { color: var(--ink); border-color: var(--line-2); }
.card h3 {
    font-size: 1.02rem; font-weight: 400; letter-spacing: 2px;
    margin-bottom: 0.7rem;
}
.card p {
    color: var(--ink-2);
    font-size: 0.875rem; line-height: 1.85;
    margin-bottom: 1.3rem;
}
.card p:last-child { margin-bottom: 0; }
.card-link {
    display: inline-flex; align-items: center; gap: 0.45rem;
    font-size: 0.78rem; letter-spacing: 1px;
    color: var(--ink-2);
    transition: color 0.4s var(--ease), gap 0.4s var(--ease);
}
.card-link:hover { color: var(--ink); gap: 0.8rem; }

/* 社交图标 */
.social-links { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.social-link {
    width: 38px; height: 38px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--line); border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink-2); font-size: 0.95rem;
    transition: background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.social-link:hover { background: var(--ink); color: #000; border-color: var(--ink); transform: translateY(-2px); }

/* 联系信息行 */
.contact-info { display: flex; flex-direction: column; gap: 0.85rem; }
.contact-item {
    display: flex; align-items: center; gap: 0.8rem;
    padding: 0; text-align: left; width: 100%;
    color: var(--ink-2); font-size: 0.86rem;
    transition: color 0.35s var(--ease);
}
.contact-item:hover { color: var(--ink); }
.contact-item i {
    flex: none;
    width: 30px; height: 30px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--line); border-radius: var(--radius);
    background: var(--surface);
    font-size: 0.8rem;
}
.contact-item span { word-break: break-word; }
.contact-info + .card-link { margin-top: 1.2rem; }

/* 关于 */
.card--wide { grid-column: 1 / -1; }
.about-content {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
}
.about-text p {
    color: var(--ink-2);
    font-size: 0.875rem; line-height: 2;
    margin-bottom: 1.1rem;
}
.about-text p:last-child { margin-bottom: 0; }
.about-stats {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.7rem;
}
.stat-item {
    padding: 1.1rem 0.8rem;
    text-align: center;
    border: 1px solid var(--line); border-radius: var(--radius);
    background: var(--surface);
    transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.stat-item:hover { border-color: var(--line-2); background: var(--surface-2); }
.stat-number {
    font-family: var(--mono);
    font-size: 1.5rem; font-weight: 400; letter-spacing: 1px;
}
.stat-label { color: var(--ink-2); font-size: 0.72rem; letter-spacing: 1px; margin-top: 0.2rem; }

/* 页脚 */
.footer {
    position: relative; z-index: 1;
    padding: 3rem 0 2.5rem;
    border-top: 1px solid var(--line);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: var(--glass);
    -webkit-backdrop-filter: var(--glass);
}
.footer-top {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 1.5rem;
}
.footer-logo { font-size: 1.05rem; letter-spacing: 5px; color: var(--ink-2); }
.footer-links { display: flex; gap: 1.6rem; list-style: none; flex-wrap: wrap; }
.footer-links a {
    font-size: 0.78rem; letter-spacing: 1px; color: var(--ink-2);
    transition: color 0.3s var(--ease);
}
.footer-links a:hover { color: var(--ink); }
.footer-copy {
    margin-top: 2rem; padding-top: 1.4rem;
    border-top: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.68rem; letter-spacing: 1px;
    color: var(--ink-3); text-align: center;
}

/* 微信弹层 */
.wechat-modal {
    position: fixed; inset: 0; z-index: 3000;
    display: none; align-items: center; justify-content: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.wechat-modal.show { display: flex; }
.wechat-modal-content {
    position: relative;
    padding: 1.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    text-align: center;
}
.wechat-modal-content img { width: min(200px, 60vw); height: auto; border-radius: 6px; }
.wechat-modal-content p { color: #333; margin-top: 0.9rem; font-size: 0.9rem; }
.wechat-modal-close {
    position: absolute; top: 0.6rem; right: 0.9rem;
    font-size: 1.5rem; line-height: 1; color: #666;
}
.wechat-modal-close:hover { color: #000; }

/* 载入层 */
.page-loader {
    position: fixed; inset: 0; z-index: 5000;
    display: flex; align-items: center; justify-content: center;
    background: #000;
    transition: opacity 0.7s var(--ease), visibility 0.7s;
}
.page-loader.hidden { opacity: 0; visibility: hidden; }
.loader-spinner {
    width: 42px; height: 42px; margin: 0 auto 1.2rem;
    border: 2px solid rgba(255, 255, 255, 0.12);
    border-top-color: var(--ink);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text {
    font-family: var(--mono);
    font-size: 0.75rem; letter-spacing: 4px; color: var(--ink-2);
    text-align: center;
}

/* 进场 */
.js .hero-inner > * { opacity: 0; transform: translateY(26px); animation: rise 1s var(--ease) forwards; }
.js .hero-inner > *:nth-child(1) { animation-delay: 0.25s; }
.js .hero-inner > *:nth-child(2) { animation-delay: 0.4s; }
.js .hero-inner > *:nth-child(3) { animation-delay: 0.55s; }
.js .hero-inner > *:nth-child(4) { animation-delay: 0.7s; }
@keyframes rise { to { opacity: 1; transform: none; } }

.js .reveal { opacity: 0; transform: translateY(22px); }
.js .reveal.in {
    opacity: 1; transform: none;
    transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js .cards-grid .reveal:nth-child(2) { transition-delay: 0.07s; }
.js .cards-grid .reveal:nth-child(3) { transition-delay: 0.14s; }
.js .cards-grid .reveal:nth-child(4) { transition-delay: 0.21s; }
.js .cards-grid .reveal:nth-child(5) { transition-delay: 0.28s; }
.js .cards-grid .reveal:nth-child(6) { transition-delay: 0.35s; }

/* 窄屏 */
@media (max-width: 820px) {
    .nav-toggle { display: inline-flex; }
    .nav-links {
        position: fixed; top: var(--nav-h); left: 0; right: 0;
        display: none;
        padding: 0.8rem var(--pad-x) 1.4rem;
        background: rgba(0, 0, 0, 0.94);
        border-bottom: 1px solid var(--line);
        backdrop-filter: var(--glass);
        -webkit-backdrop-filter: var(--glass);
    }
    .nav-links.open { display: block; }
    .nav-links ul { flex-direction: column; gap: 0.15rem; }
    .nav-links a { display: block; padding: 0.65rem 0; font-size: 0.9rem; letter-spacing: 1px; }
    .nav-links a::after { display: none; }
    .about-content { grid-template-columns: 1fr; gap: 1.8rem; }
    .ghost { font-size: clamp(3.5rem, 22vw, 7rem); top: auto; bottom: 0.5rem; }
    .footer-top { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .hero { padding-top: calc(var(--nav-h) + 2rem); }
    .hero-badge { font-size: 0.62rem; letter-spacing: 2px; }
    .card { padding: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .sky video, .ghost, .hero-inner { transform: none !important; }
    .hero-inner { opacity: 1 !important; }
    .js .hero-inner > *,
    .js .reveal { opacity: 1; transform: none; animation: none; transition: none; }
    .scroll-cue::after, .typing-text, .loader-spinner { animation: none; }
}