@charset "UTF-8";

:root {
    --bg: #171817;
    --panel: #222421;
    --panel-2: #2b2a26;
    --ink: #f4ead8;
    --muted: #b8b0a2;
    --line: rgba(220, 180, 130, .22);
    --rust: #b95e39;
    --rust-dark: #753322;
    --wood: #8c623b;
    --metal: #9ea39c;
    --cement: #595b55;
    --shadow: 0 26px 70px rgba(0, 0, 0, .42);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    margin: 0;
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
    background:
        radial-gradient(circle at 20% 0%, rgba(185, 94, 57, .2), transparent 24rem),
        radial-gradient(circle at 80% 18%, rgba(158, 163, 156, .16), transparent 28rem),
        linear-gradient(135deg, #141514 0%, #1d1d1a 42%, #231b17 100%);
    line-height: 1.75;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    opacity: .32;
    background-image:
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 72px 72px, 72px 72px;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button,
input {
    font: inherit;
}

.skip-link,
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.skip-link:focus {
    clip-path: none;
    width: auto;
    height: auto;
    z-index: 1000;
    left: 1rem;
    top: 1rem;
    padding: .7rem 1rem;
    background: var(--rust);
    color: #fff;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(23, 24, 23, .92);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .25);
}

.industrial-strip {
    height: 8px;
    background: repeating-linear-gradient(135deg, var(--rust) 0 16px, #2b2a26 16px 32px);
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.header-inner {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    min-height: 86px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.2rem;
}

.brand-logo,
.footer-logo {
    display: inline-flex;
    align-items: center;
    filter: drop-shadow(0 10px 22px rgba(0, 0, 0, .35));
}

.brand-logo img {
    border-radius: 14px;
}

.primary-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .35rem;
    justify-content: flex-end;
}

.primary-nav a {
    color: var(--muted);
    padding: .66rem .82rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .94rem;
    transition: .2s ease;
}

.primary-nav a:hover,
.primary-nav a.is-active {
    color: var(--ink);
    border-color: rgba(240, 179, 93, .35);
    background: linear-gradient(180deg, rgba(185, 94, 57, .22), rgba(89, 91, 85, .1));
}

.nav-toggle {
    display: none;
    border: 1px solid var(--line);
    color: var(--ink);
    background: rgba(255,255,255,.04);
    border-radius: 12px;
    padding: .6rem .9rem;
}

.search-panel {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto 1rem;
    padding: .8rem;
    display: grid;
    gap: .45rem;
    background: linear-gradient(135deg, rgba(89, 91, 85, .34), rgba(117, 51, 34, .22));
    border: 1px solid var(--line);
    border-radius: 18px;
}

.search-panel form {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: .65rem;
}

.search-panel input {
    width: 100%;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(0,0,0,.28);
    color: var(--ink);
    border-radius: 14px;
    padding: .88rem 1rem;
    outline: none;
}

.search-panel input:focus {
    border-color: rgba(240, 179, 93, .6);
    box-shadow: 0 0 0 4px rgba(185, 94, 57, .18);
}

.search-panel button,
.btn {
    border: 1px solid rgba(240, 179, 93, .38);
    color: var(--ink);
    background: linear-gradient(135deg, var(--rust), var(--rust-dark));
    border-radius: 14px;
    padding: .88rem 1.1rem;
    cursor: pointer;
    font-weight: 800;
    letter-spacing: .03em;
    box-shadow: 0 12px 28px rgba(0,0,0,.22);
}

.search-hint {
    margin: 0;
    color: var(--muted);
    font-size: .9rem;
}

.site-main {
    min-height: 70vh;
}

.hero-section {
    min-height: calc(100vh - 160px);
    position: relative;
    display: grid;
    align-items: end;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
}

.hero-section picture {
    position: absolute;
    inset: 0;
}

.hero-section img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(.9) contrast(1.08) brightness(.74);
}

.hero-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(13, 14, 13, .9) 0%, rgba(13,14,13,.55) 48%, rgba(13,14,13,.22) 100%),
        radial-gradient(circle at 74% 24%, rgba(235, 153, 82, .3), transparent 18rem);
}

.hero-overlay {
    position: relative;
    z-index: 2;
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 6rem 0 5rem;
}

.eyebrow {
    margin: 0 0 .7rem;
    color: #efb35d;
    font-weight: 900;
    letter-spacing: .13em;
    text-transform: uppercase;
    font-size: .88rem;
}

h1,
h2,
h3 {
    line-height: 1.18;
    letter-spacing: -.02em;
}

h1 {
    max-width: 960px;
    margin: 0;
    font-size: clamp(2.3rem, 6vw, 5.9rem);
    text-shadow: 0 8px 34px rgba(0, 0, 0, .55);
}

.hero-slogan,
.page-hero p,
.section-head p {
    max-width: 860px;
    color: var(--muted);
    font-size: 1.08rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .85rem;
    margin-top: 1.6rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-secondary {
    background: rgba(20, 20, 18, .42);
    border-color: rgba(158, 163, 156, .48);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .8rem;
    max-width: 720px;
    margin: 2rem 0 0;
}

.hero-stats div,
.position-grid article,
.story-card,
.tool-list article,
.creator-grid article,
.review-card,
.guide-card,
.content-grid article,
.qr-card,
.api-grid a {
    background:
        linear-gradient(145deg, rgba(255,255,255,.07), rgba(0,0,0,.16)),
        radial-gradient(circle at top left, rgba(185,94,57,.18), transparent 17rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.hero-stats div {
    padding: 1rem;
}

.hero-stats dt {
    color: var(--muted);
    font-size: .88rem;
}

.hero-stats dd {
    margin: .15rem 0 0;
    font-size: 1.85rem;
    color: #f0b35d;
    font-weight: 900;
}

.section,
.page-hero {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.section-head {
    margin-bottom: 2rem;
}

.section-head h2,
.page-hero h1 {
    margin: 0 0 .9rem;
    font-size: clamp(1.9rem, 4vw, 3.25rem);
}

.position-grid,
.story-grid,
.review-grid,
.content-grid,
.api-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.position-grid article,
.story-card,
.review-card,
.content-grid article,
.api-grid a {
    padding: 1.25rem;
}

.position-grid h3,
.story-card h3,
.content-grid h3 {
    margin: 0 0 .65rem;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.video-grid.compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.video-card {
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, rgba(42, 42, 38, .96), rgba(21, 22, 21, .96));
    border: 1px solid rgba(240, 179, 93, .2);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    isolation: isolate;
}

.video-card::before {
    content: "";
    position: absolute;
    inset: -40%;
    opacity: 0;
    z-index: 3;
    pointer-events: none;
    background:
        radial-gradient(circle, rgba(185,94,57,.28) 0 1px, transparent 2px) 0 0 / 18px 18px,
        radial-gradient(circle, rgba(240,179,93,.18) 0 1px, transparent 2px) 9px 9px / 22px 22px;
    transition: opacity .25s ease;
}

.video-card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    opacity: 0;
    transform: translateX(-120%) skewX(-24deg);
    background: linear-gradient(115deg, transparent 0%, rgba(255,255,255,.2) 46%, rgba(240,179,93,.38) 50%, transparent 58%);
    transition: opacity .25s ease, transform .55s ease;
}

.video-card:hover::before {
    opacity: .8;
    animation: rustShake .28s steps(2, end) infinite;
}

.video-card:hover::after {
    opacity: .9;
    transform: translateX(130%) skewX(-24deg);
}

@keyframes rustShake {
    0% { transform: translate(0,0) rotate(0deg); }
    50% { transform: translate(2px,-1px) rotate(.1deg); }
    100% { transform: translate(-1px,1px) rotate(-.1deg); }
}

.video-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #0f100f;
}

.video-frame video,
.video-frame img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease, filter .45s ease;
}

.video-frame video {
    opacity: 0;
}

.video-card:hover .video-frame img {
    transform: scale(1.05);
    filter: contrast(1.15) saturate(.95);
}

.play-button {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 5;
    transform: translate(-50%, -50%) scale(.82);
    width: 72px;
    height: 72px;
    display: grid;
    place-items: center;
    color: #151515;
    background: linear-gradient(135deg, #f0b35d, #b95e39);
    border: 2px solid rgba(255,255,255,.45);
    border-radius: 50%;
    font-weight: 900;
    opacity: 0;
    transition: .25s ease;
    box-shadow: 0 16px 36px rgba(0, 0, 0, .45);
}

.video-card:hover .play-button {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.duration {
    position: absolute;
    right: .8rem;
    bottom: .8rem;
    z-index: 5;
    padding: .25rem .55rem;
    border-radius: 999px;
    color: var(--ink);
    background: rgba(0,0,0,.66);
    border: 1px solid rgba(255,255,255,.18);
    font-size: .82rem;
}

.video-body {
    padding: 1rem;
}

.category,
.role {
    margin: 0 0 .45rem;
    color: #efb35d;
    font-weight: 800;
    font-size: .9rem;
}

.video-body h3 {
    margin: 0 0 .6rem;
    font-size: 1.06rem;
}

.video-body p,
.story-card p,
.tool-list p,
.creator-grid p,
.review-card p,
.content-grid p,
.guide-card li,
.faq-list p,
footer p {
    color: var(--muted);
}

.metrics {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    margin: .9rem 0;
    padding: 0;
    color: #d7cab8;
    font-size: .82rem;
}

.metrics li {
    padding: .22rem .48rem;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 999px;
    background: rgba(255,255,255,.04);
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.tag-row span {
    padding: .22rem .55rem;
    border-radius: 999px;
    color: #f2d3aa;
    background: rgba(185, 94, 57, .18);
    border: 1px solid rgba(240,179,93,.18);
    font-size: .78rem;
}

.story-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.text-link {
    display: inline-flex;
    color: #efb35d;
    font-weight: 800;
    margin-top: .65rem;
}

.image-wall {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: .7rem;
}

.image-wall figure {
    position: relative;
    min-height: 260px;
    grid-column: span 2;
    margin: 0;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--panel);
}

.image-wall figure:nth-child(1),
.image-wall figure:nth-child(4) {
    grid-column: span 3;
}

.image-wall img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: contrast(1.05) brightness(.88);
    transition: transform .45s ease;
}

.image-wall figure:hover img {
    transform: scale(1.05);
}

.image-wall figcaption {
    position: absolute;
    inset: auto .8rem .8rem .8rem;
    padding: .6rem .7rem;
    border-radius: 14px;
    background: rgba(0,0,0,.6);
    border: 1px solid rgba(255,255,255,.13);
    color: var(--ink);
    font-weight: 800;
}

.split-layout,
.creator-layout,
.page-hero-grid,
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
    align-items: center;
}

.split-layout figure,
.creator-layout > img,
.page-hero figure {
    margin: 0;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    background: var(--panel);
}

.split-layout img,
.creator-layout > img,
.page-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tool-list,
.creator-grid {
    display: grid;
    gap: .85rem;
}

.tool-list article,
.creator-grid article {
    padding: 1.1rem;
}

.creator-layout {
    grid-template-columns: .95fr 1.05fr;
}

.review-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.review-card strong {
    display: inline-grid;
    place-items: center;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--rust), #efb35d);
    color: #161615;
    font-weight: 900;
}

.review-card span {
    color: #efb35d;
    font-weight: 800;
}

.partner-wall {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .8rem;
    margin-bottom: 1rem;
}

.partner-wall span,
.column-grid a,
.share-row a {
    min-height: 70px;
    display: grid;
    place-items: center;
    text-align: center;
    padding: .8rem;
    border: 1px dashed rgba(240,179,93,.34);
    border-radius: 18px;
    color: #f2d3aa;
    background: rgba(255,255,255,.04);
    font-weight: 900;
}

.guide-card {
    padding: 1.2rem 1.4rem;
    margin: 1rem 0;
}

.faq-list {
    display: grid;
    gap: .75rem;
}

.faq-list details {
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255,255,255,.045);
    padding: .95rem 1rem;
}

.faq-list summary {
    cursor: pointer;
    color: var(--ink);
    font-weight: 900;
}

.contact-grid {
    align-items: stretch;
    grid-template-columns: 1.2fr .6fr .6fr;
}

.contact-grid > article,
.qr-card {
    padding: 1.2rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255,255,255,.05);
    box-shadow: var(--shadow);
}

.qr-card {
    margin: 0;
    text-align: center;
}

.qr-card img {
    width: 100%;
    max-width: 240px;
    margin: 0 auto;
    border-radius: 14px;
    background: #f4ead8;
}

.api-grid a {
    display: grid;
    place-items: center;
    min-height: 92px;
    text-align: center;
    color: #efb35d;
    font-weight: 900;
}

.breadcrumb {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    color: var(--muted);
    margin-bottom: 1.4rem;
}

.breadcrumb a {
    color: #efb35d;
}

.page-hero {
    padding-top: 4rem;
}

.page-hero-grid figure figcaption {
    padding: .75rem .9rem;
    color: var(--muted);
    font-size: .9rem;
}

.column-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: .8rem;
}

.site-footer {
    border-top: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(18,18,17,.96), rgba(27,20,17,.98)),
        radial-gradient(circle at 20% 10%, rgba(185,94,57,.2), transparent 20rem);
    padding: 3.5rem 0;
}

.footer-grid {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1fr;
    gap: 1.2rem;
}

.footer-grid h2 {
    font-size: 1.05rem;
    margin: 0 0 .8rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: .35rem;
}

.footer-links a {
    color: var(--muted);
}

.footer-links a:hover {
    color: #efb35d;
}

.qr-row {
    display: flex;
    gap: .8rem;
    flex-wrap: wrap;
}

.qr-row figure {
    margin: 0;
    max-width: 126px;
}

.qr-row img {
    background: #f4ead8;
    border-radius: 12px;
}

.qr-row figcaption {
    font-size: .78rem;
    color: var(--muted);
    margin-top: .35rem;
}

.share-row {
    display: grid;
    gap: .5rem;
}

.share-row a {
    min-height: 42px;
}

.record-line,
.update-line,
.domain-line {
    font-size: .9rem;
}

@media (max-width: 1100px) {
    .video-grid,
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .contact-grid > article {
        grid-column: 1 / -1;
    }

    .column-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .header-inner {
        min-height: 74px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .primary-nav {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 88px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
        background: rgba(24, 25, 23, .98);
        border: 1px solid var(--line);
        border-radius: 18px;
    }

    .primary-nav.is-open {
        display: flex;
    }

    .primary-nav a {
        border-color: rgba(255,255,255,.08);
    }

    .search-panel form {
        grid-template-columns: 1fr;
    }

    .hero-section {
        min-height: auto;
    }

    .hero-overlay {
        padding: 5rem 0 3.5rem;
    }

    .hero-stats,
    .position-grid,
    .story-grid,
    .content-grid,
    .api-grid,
    .video-grid.compact,
    .split-layout,
    .creator-layout,
    .page-hero-grid,
    .partner-wall,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .image-wall {
        grid-template-columns: 1fr;
    }

    .image-wall figure,
    .image-wall figure:nth-child(1),
    .image-wall figure:nth-child(4) {
        grid-column: auto;
        min-height: 230px;
    }
}

@media (max-width: 640px) {
    .brand-logo img {
        width: 166px;
        height: auto;
    }

    .section,
    .page-hero {
        width: min(100% - 24px, 1200px);
        padding: 3rem 0;
    }

    .video-grid,
    .review-grid,
    .contact-grid,
    .column-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        display: grid;
    }

    .btn {
        width: 100%;
    }

    h1 {
        font-size: clamp(2.1rem, 12vw, 3.2rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}