/* 极简杂志风 (Editorial) V2 - 增强版 */
:root {
    --bg-color: #fcfaf8;
    --text-color: #1a1a1a;
    --accent-color: #f5a623;
    --border-color: rgba(0, 0, 0, 0.1);
    --secondary-text: #666;
    --container-width: 1100px;
    --transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 深色模式自动适配 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0a0a0a;
        --text-color: #f5f5f5;
        --border-color: rgba(255, 255, 255, 0.1);
        --secondary-text: #aaa;
    }
}

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

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

body {
    overflow-x: hidden;
    width: 100%;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Montserrat', sans-serif;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* 噪点纹理叠加层 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: url('https://grainy-gradients.vercel.app/noise.svg');
    opacity: 0.04;
    pointer-events: none;
    z-index: 9999;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    transition: transform 0.2s ease;
    transform: translate(-50%, -50%);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 30px;
}

/* 页面淡入效果 */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: var(--transition);
    will-change: transform, opacity;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 60px 0 20px;
    background: color-mix(in srgb, var(--bg-color) 86%, transparent);
    backdrop-filter: blur(16px);
    transition: padding 0.28s cubic-bezier(0.16, 1, 0.3, 1), background 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.is-scrolled {
    padding: 16px 0 10px;
    background: color-mix(in srgb, var(--bg-color) 94%, transparent);
}

.header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    transition: padding-bottom 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.is-scrolled nav {
    padding-bottom: 10px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    transform-origin: left center;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.is-scrolled .logo-wrapper {
    transform: translateY(-3px) scale(0.96);
}

.header-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.header-icon:hover {
    transform: rotate(15deg) scale(1.1);
}

.logo {
    font-weight: 900;
    letter-spacing: 0.2em;
    font-size: 1rem;
}

.current-section {
    color: var(--secondary-text);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.header.is-scrolled .current-section {
    transform: translateY(-3px);
}

.portfolio-page .header {
    position: fixed;
    left: 0;
    right: 0;
}

.portfolio-page main {
    padding-top: 143px;
}

.date {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--secondary-text);
}

/* Hero Section */
.hero {
    padding: 100px 0 120px;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: clamp(3.5rem, 12vw, 9rem);
    font-weight: 900;
    line-height: 0.85;
    letter-spacing: -0.03em;
    margin-bottom: 50px;
    transform: translate3d(calc(var(--hero-x, 0) * 1px), calc(var(--hero-y, 0) * 1px), 0);
    transition: transform 0.36s cubic-bezier(0.16, 1, 0.3, 1), opacity 2s ease, letter-spacing 2s ease;
}

.hero-title em {
    display: inline-block;
    font-style: italic;
    font-weight: 700;
    color: var(--accent-color);
    transform: translate3d(calc(var(--hero-x, 0) * -0.55px), calc(var(--hero-y, 0) * -0.45px), 0);
    transition: transform 0.36s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-subtitle {
    font-size: 1.1rem;
    font-weight: 300;
    max-width: 500px;
    color: var(--secondary-text);
    border-left: 3px solid var(--accent-color);
    padding-left: 20px;
}

/* Sections Label */
.section-label {
    font-size: 0.75rem;
    font-weight: 900;
    letter-spacing: 0.3em;
    margin-bottom: 60px;
    display: block;
    color: var(--secondary-text);
    text-transform: uppercase;
}

/* Project Stack (上下排列) */
.project-stack {
    display: flex;
    flex-direction: column;
    gap: 100px;
    margin-bottom: 100px;
}

.project-card.stacked {
    position: relative;
    height: 70vh;
    min-height: 500px;
    background-size: cover;
    background-position: center;
    border-radius: 24px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    padding: 60px;
    transition: var(--transition);
    will-change: transform;
    cursor: pointer;
}

.project-card:hover {
    transform: scale(0.99);
}

.project-card:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 6px;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0) 100%);
    transition: var(--transition);
}

.card-content {
    position: relative;
    z-index: 2;
    color: white;
    width: 100%;
}

.project-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    margin-bottom: 30px;
}

.project-info h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.project-info p {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 550px;
}

.project-link {
    color: white;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    border-bottom: 1px solid rgba(255,255,255,0.4);
    padding-bottom: 8px;
    transition: var(--transition);
}

.project-link:hover {
    border-bottom-color: var(--accent-color);
    letter-spacing: 0.25em;
}

.project-info {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.project-link.disabled {
    align-self: flex-end;
    cursor: default;
    opacity: 0.9;
    padding: 10px 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 50px;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    width: fit-content;
}

.project-link.glass-link {
    align-self: flex-end;
    opacity: 0.9;
    padding: 10px 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    border-radius: 50px;
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    width: fit-content;
}

.project-link.glass-link:hover {
    border-bottom-color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.2em;
    background: rgba(255, 255, 255, 0.2);
}

/* 技术栈标签 */
.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.tech-tag {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(4px);
    text-transform: uppercase;
    white-space: nowrap;
}

.project-link.disabled:hover {
    border-bottom-color: rgba(255, 255, 255, 0.3);
    letter-spacing: 0.2em;
    background: rgba(255, 255, 255, 0.2);
}

/* Social Grid */
.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid var(--border-color);
}

.social-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 50px 40px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
}

.social-item:nth-child(odd) {
    border-right: 1px solid var(--border-color);
}

.social-item:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

.social-name {
    font-size: 1.2rem;
    font-weight: 900;
    letter-spacing: 0.05em;
}

.social-arrow {
    font-size: 1.5rem;
}

/* Footer */
.footer {
    padding: 100px 0 60px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--secondary-text);
}

.icp-link {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.icp-link:hover {
    color: var(--text-color);
}

.back-to-top {
    font-size: 0.7rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition);
}

/* Video Showcase */
.video-showcase {
    padding: 20px 0 100px;
}

.video-showcase .section-label {
    margin-bottom: 40px;
}

.video-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: #111;
    aspect-ratio: 16 / 9;
    max-width: 900px;
    margin: 0 auto;
}

.video-wrapper::after {
    content: "PLAY VIDEO";
    position: absolute;
    left: 24px;
    bottom: 22px;
    z-index: 1;
    color: rgba(255,255,255,0.82);
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.18em;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.24s cubic-bezier(0.25, 1, 0.5, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.video-wrapper:hover::after {
    opacity: 1;
    transform: translateY(0);
}

.video-wrapper.is-loading {
    animation: videoPress 0.18s cubic-bezier(0.7, 0, 0.84, 0) forwards;
}

.video-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

/* 视频封面图 */
.video-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.32s cubic-bezier(0.25, 1, 0.5, 1), filter 0.32s cubic-bezier(0.25, 1, 0.5, 1);
}

.video-wrapper:hover .video-cover {
    opacity: 0.62;
    filter: saturate(1.08);
    transform: scale(1.045);
}

/* 播放按钮 */
.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.85;
    z-index: 2;
}

.play-btn:hover {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
}

.play-btn svg {
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
    pointer-events: none;
}

.video-caption {
    padding: 20px 0;
    text-align: center;
}

.video-caption h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 8px;
}

.video-caption p {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    color: #888;
    letter-spacing: 2px;
    text-transform: uppercase;
}

@keyframes videoPress {
    to {
        opacity: 0.62;
        transform: scale(0.992);
    }
}

/* Project detail dialog */
.project-dialog {
    width: min(980px, calc(100vw - 32px));
    max-height: calc(100dvh - 32px);
    margin: auto;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-color);
    box-shadow: 0 34px 90px rgba(0, 0, 0, 0.22);
}

.project-dialog::backdrop {
    background: rgba(0, 0, 0, 0.42);
    backdrop-filter: blur(8px);
}

.project-dialog-layout {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    min-height: 610px;
}

.project-dialog-gallery {
    display: grid;
    grid-template-rows: 1fr auto;
    min-height: 100%;
    border-right: 1px solid var(--border-color);
    background: rgba(245, 166, 35, 0.06);
}

.project-dialog-shot {
    position: relative;
    min-height: 440px;
    overflow: hidden;
    background: #111;
    color: white;
}

.project-dialog-shot::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--dialog-image);
    background-position: center;
    background-size: cover;
    opacity: 0.82;
    transform: scale(1.02);
    transition: opacity 0.26s cubic-bezier(0.25, 1, 0.5, 1), transform 0.36s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-dialog-shot.is-contain::before {
    background-color: rgba(245, 166, 35, 0.08);
    background-repeat: no-repeat;
    background-size: min(58%, 260px);
}

.project-dialog-shot::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(0,0,0,0.78), rgba(0,0,0,0.12) 58%, rgba(0,0,0,0));
}

.project-dialog-shot-copy {
    position: absolute;
    left: clamp(22px, 4vw, 42px);
    right: clamp(22px, 4vw, 42px);
    bottom: clamp(22px, 4vw, 42px);
    z-index: 1;
}

.project-dialog-shot-copy span {
    display: block;
    margin-bottom: 8px;
    color: rgba(255,255,255,0.68);
    font-size: 0.66rem;
    font-weight: 900;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.project-dialog-shot-copy strong {
    display: block;
    margin-bottom: 8px;
    font-family: 'Playfair Display', serif;
    font-size: clamp(1.7rem, 4vw, 2.8rem);
    line-height: 1;
}

.project-dialog-shot-copy p {
    max-width: 420px;
    color: rgba(255,255,255,0.82);
    font-size: 0.88rem;
    line-height: 1.7;
}

.project-dialog-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--border-color);
}

.project-dialog-tab {
    min-height: 54px;
    border: 0;
    border-right: 1px solid var(--border-color);
    background: transparent;
    color: var(--secondary-text);
    cursor: pointer;
    font-size: 0.68rem;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    transition: background 0.18s cubic-bezier(0.25, 1, 0.5, 1), color 0.18s cubic-bezier(0.25, 1, 0.5, 1);
}

.project-dialog-tab:last-child {
    border-right: 0;
}

.project-dialog-tab:hover,
.project-dialog-tab[aria-selected="true"] {
    background: var(--text-color);
    color: var(--bg-color);
}

.project-dialog-copy {
    display: grid;
    align-content: center;
    gap: 20px;
    padding: clamp(28px, 5vw, 54px);
}

.project-dialog-copy h2 {
    margin: 0;
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 3.6rem);
    line-height: 1;
}

.project-dialog-copy p {
    color: var(--secondary-text);
    line-height: 1.85;
}

.project-dialog-meta {
    display: grid;
    gap: 10px;
    margin: 8px 0 0;
    padding: 0;
    list-style: none;
}

.project-dialog-meta li {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
    color: var(--secondary-text);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.project-dialog-meta strong {
    color: var(--text-color);
    text-align: right;
}

.project-dialog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

.project-dialog-link,
.project-dialog-close {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: transparent;
    color: var(--text-color);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    transition: transform 0.15s cubic-bezier(0.25, 1, 0.5, 1), background 0.22s cubic-bezier(0.25, 1, 0.5, 1), color 0.22s cubic-bezier(0.25, 1, 0.5, 1);
}

.project-dialog-link {
    background: var(--text-color);
    color: var(--bg-color);
}

.project-dialog-link[aria-disabled="true"] {
    opacity: 0.55;
    pointer-events: none;
}

.project-dialog-link:hover,
.project-dialog-close:hover {
    transform: translateY(-2px);
}

.project-dialog-link:active,
.project-dialog-close:active {
    transform: translateY(0) scale(0.98);
}

/* Mobile Adaptation (手机端适配) */
@media (max-width: 768px) {
    /* 移动端隐藏噪点纹理层，解决滑动卡顿 */
    body::before {
        display: none;
    }

    .container {
        padding: 0 24px;
    }
    .header {
        padding: 40px 0 10px;
    }
    .portfolio-page main {
        padding-top: 113px;
    }
    .header.is-scrolled {
        padding: 10px 0 8px;
    }
    .header.is-scrolled nav {
        padding-bottom: 8px;
    }
    .current-section {
        font-size: 0.62rem;
        letter-spacing: 0.12em;
    }
    .hero {
        padding: 60px 0 80px;
    }
    .hero-title {
        font-size: clamp(2.45rem, 13.5vw, 3.1rem);
        line-height: 0.94;
        letter-spacing: -0.02em;
    }
    .project-card.stacked {
        height: 60vh;
        padding: 30px;
    }
    .project-info h3 {
        font-size: 1.8rem;
    }
    .project-info p {
        font-size: 1rem;
    }
    .social-grid {
        grid-template-columns: 1fr;
    }
    .social-item:nth-child(odd) {
        border-right: none;
    }
    .social-item {
        padding: 30px 20px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .cursor-dot {
        display: none;
    }

    .project-dialog-layout {
        grid-template-columns: 1fr;
    }

    .project-dialog-gallery {
        border-right: 0;
        border-bottom: 1px solid var(--border-color);
    }

    .project-dialog-shot {
        min-height: 240px;
    }

    .project-dialog-tab {
        min-height: 48px;
    }

    .project-dialog-actions {
        flex-direction: column;
    }

    .project-dialog-link,
    .project-dialog-close {
        width: 100%;
    }

}

@media (prefers-reduced-motion: reduce) {
    .hero-title,
    .hero-title em,
    .video-cover,
    .project-dialog-shot::before {
        transform: none !important;
    }

    .video-wrapper.is-loading {
        animation: none;
    }
}