:root {
    --bg: #09182f;
    --bg-soft: #0d2142;
    --panel: #122b52;
    --panel-2: #183763;
    --line: rgba(255, 255, 255, .11);
    --line-strong: rgba(255, 255, 255, .18);
    --text: #f6f6f2;
    --muted: #a2a2a2;
    --muted-2: #696969;
    --accent: #ff5b23;
    --green: #45d7ff;
    --chip: rgba(255, 255, 255, .08);
    --max: 1280px;
}

* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    color: var(--text);
    background:
        linear-gradient(180deg, rgba(58, 118, 255, .2), transparent 280px),
        linear-gradient(120deg, rgba(69, 215, 255, .08), transparent 42%),
        var(--bg);
    font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
    letter-spacing: 0;
}

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

button {
    font: inherit;
}

.site-shell {
    min-height: 100vh;
    overflow: hidden;
    background: var(--bg);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    height: 69px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    background: rgba(9, 24, 47, .82);
    backdrop-filter: blur(20px);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(var(--max), calc(100% - 48px));
    height: 100%;
    margin: 0 auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-width: 150px;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 36px;
    height: 28px;
    color: #070707;
    background: linear-gradient(135deg, #ff5b23 0%, #ff5b23 45%, #19d5a6 46%, #19d5a6 100%);
    border-radius: 8px 3px 8px 3px;
    font-size: 12px;
    font-weight: 950;
}

.brand-logo {
    width: 36px;
    height: 28px;
    border-radius: 8px;
    object-fit: cover;
}

.brand-name {
    display: grid;
    gap: 1px;
    color: #fff;
    font-weight: 950;
    line-height: 1;
}

.brand-name small {
    color: rgba(255, 255, 255, .42);
    font-size: 10px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: 18px;
    color: #fff;
    font-size: 14px;
    font-weight: 800;
}

.nav-links a {
    opacity: .92;
    white-space: nowrap;
}

.nav-links a:hover {
    opacity: 1;
}

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

.language-button,
.login-button,
.register-button,
.primary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-weight: 800;
}

.language-button {
    color: #fff;
    background: transparent;
    border: 0;
}

.login-button {
    color: #111;
    background: #fff;
}

.register-button {
    color: #fff;
    background: rgba(255, 255, 255, .06);
    border-color: rgba(255, 255, 255, .12);
}

.primary-button {
    color: #111;
    background: #fff;
}

.large {
    min-height: 46px;
    padding-inline: 22px;
}

.hero-section {
    position: relative;
    min-height: 510px;
    padding: 138px 24px 0;
    overflow: hidden;
}

.hero-section::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -2px;
    height: 190px;
    background: linear-gradient(180deg, transparent, var(--bg) 78%);
    pointer-events: none;
}

.hero-bg-lines {
    position: absolute;
    inset: 70px 0 auto;
    height: 260px;
    opacity: .58;
    background:
        linear-gradient(165deg, transparent 0 31%, rgba(255, 255, 255, .11) 32%, transparent 38%),
        linear-gradient(172deg, transparent 0 42%, rgba(255, 255, 255, .1) 43%, transparent 49%),
        linear-gradient(186deg, transparent 0 38%, rgba(255, 255, 255, .09) 39%, transparent 45%);
    filter: blur(5px);
    transform: skewY(-5deg);
}

.hero-inner {
    position: relative;
    z-index: 1;
    width: min(var(--max), 100%);
    margin: 0 auto;
    text-align: center;
}

.hero-badge,
.eyebrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 0 0 18px;
    min-height: 28px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 999px;
    color: rgba(255, 255, 255, .86);
    background: rgba(255, 255, 255, .04);
    font-size: 13px;
    font-weight: 900;
}

.hero-badge::before,
.cert-row span::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--green);
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    width: min(1280px, 100%);
    margin: 0 auto 14px;
    font-size: clamp(42px, 5vw, 60px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: 0;
}

h2 {
    margin: 0 0 14px;
    font-size: clamp(34px, 4vw, 48px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: 0;
}

h3 {
    margin: 0 0 10px;
    font-size: 18px;
    line-height: 1.45;
}

.hero-lede {
    margin: 0 auto 34px;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.75;
}

.prompt-console {
    width: min(1024px, 100%);
    margin: 0 auto;
    padding: 16px 16px 14px;
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    background: rgba(16, 43, 82, .92);
    box-shadow: 0 30px 90px rgba(0, 0, 0, .42);
    text-align: left;
}

.console-tabs {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
}

.console-tabs button {
    min-height: 30px;
    padding: 0 16px;
    border: 0;
    border-radius: 999px;
    color: rgba(255, 255, 255, .72);
    background: transparent;
    font-weight: 900;
}

.console-tabs .active {
    color: #fff;
    background: rgba(255, 255, 255, .12);
}

.console-body {
    min-height: 82px;
    padding: 22px 0 14px;
}

.upload-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.upload-square {
    display: grid;
    place-items: center;
    width: 42px;
    height: 54px;
    border: 1px dashed rgba(255, 255, 255, .28);
    border-radius: 8px;
    color: rgba(255, 255, 255, .7);
    font-size: 12px;
    font-weight: 900;
}

.upload-row p {
    margin: 0 0 0 6px;
    color: var(--muted);
    font-size: 14px;
}

.console-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.console-pills,
.console-score,
.inline-pills,
.chip-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.console-pills span,
.inline-pills span,
.chip-row span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 13px;
    border-radius: 999px;
    color: rgba(255, 255, 255, .88);
    background: var(--chip);
    font-size: 12px;
    font-weight: 900;
}

.console-score {
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.console-score strong {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    color: #111;
    background: rgba(255, 255, 255, .62);
}

section {
    position: relative;
    width: 100%;
    padding: 96px 24px;
}

.trusted-section {
    padding-top: 78px;
}

.section-heading {
    width: min(var(--max), 100%);
    margin: 0 auto 44px;
    text-align: center;
}

.section-heading p,
.copy-block p,
.tool-card p,
.benefit-grid p,
.use-grid p,
.faq-list p,
.creation-copy p {
    color: var(--muted);
    line-height: 1.72;
}

.align-left {
    text-align: left;
    margin-left: auto;
    margin-right: auto;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 42px;
    width: min(700px, 100%);
    margin: 0 auto 58px;
    text-align: center;
}

.stats-row article:nth-child(n+4) {
    display: none;
}

.stats-row strong {
    display: block;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 48px;
    font-style: italic;
    font-weight: 400;
    line-height: 1;
}

.stats-row span {
    display: block;
    margin-top: 10px;
    color: var(--muted);
    font-size: 14px;
}

.logo-marquee {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
    width: min(var(--max), 100%);
    margin: 0 auto 40px;
    color: rgba(255, 255, 255, .21);
    text-align: center;
    font-size: 26px;
    font-weight: 900;
}

.cert-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
}

.cert-row span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 0 18px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: rgba(255, 255, 255, .82);
    background: rgba(255, 255, 255, .03);
    font-size: 14px;
}

.steps-section {
    width: min(var(--max), 100%);
    margin: 0 auto;
}

.steps-line {
    position: absolute;
    left: 20%;
    right: 20%;
    top: 280px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .22), transparent);
}

.steps-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 50px;
}

.step-card {
    text-align: center;
}

.step-icon {
    position: relative;
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    border: 1px solid var(--line-strong);
    border-radius: 16px;
    background: linear-gradient(160deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
}

.step-icon::before {
    content: "";
    width: 20px;
    height: 20px;
    border: 2px solid #fff;
    border-radius: 6px;
    transform: rotate(-15deg);
}

.step-icon span {
    position: absolute;
    right: -8px;
    top: -8px;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    color: #111;
    background: #fff;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 950;
}

.step-card p {
    width: min(310px, 100%);
    margin: 0 auto;
    color: var(--muted);
    line-height: 1.8;
    font-size: 14px;
}

.split-section,
.publish-layout,
.optimization-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, .9fr);
    gap: 40px;
    align-items: center;
    width: min(var(--max), 100%);
    margin: 0 auto;
}

.discover-section {
    padding-top: 104px;
}

.trend-board,
.schedule-card,
.performance-panel,
.tool-card,
.creation-card,
.benefit-grid article,
.use-grid article,
.faq-list details {
    border: 1px solid var(--line);
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .025));
}

.trend-board,
.schedule-card {
    padding: 20px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, .34);
}

.board-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.board-title span {
    min-height: 28px;
    padding: 0 12px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    color: rgba(255, 255, 255, .76);
    background: rgba(255, 255, 255, .08);
    font-size: 12px;
    font-weight: 900;
}

.trend-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.trend-video-card {
    position: relative;
    min-height: 248px;
    padding: 10px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 12px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .02)),
        #18345f;
}

.trend-video-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, .05), transparent 48%, rgba(255, 91, 35, .09));
}

.trend-tag {
    position: relative;
    z-index: 1;
    display: inline-flex;
    min-height: 22px;
    align-items: center;
    padding: 0 8px;
    border-radius: 6px;
    color: #fff;
    background: rgba(0, 0, 0, .54);
    font-size: 11px;
    font-weight: 900;
}

.trend-video-card i {
    position: absolute;
    left: 50%;
    top: 47%;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 15px solid rgba(255, 255, 255, .78);
    transform: translate(-50%, -50%);
}

.trend-video-card div {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 46px;
    display: flex;
    justify-content: space-between;
    color: #fff;
}

.trend-video-card p {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 10px;
    margin: 0;
    color: rgba(255, 255, 255, .82);
    font-size: 13px;
    line-height: 1.35;
}

.copy-block {
    min-width: 0;
}

.copy-block .eyebrow {
    margin-bottom: 24px;
}

.copy-block h2 {
    margin-bottom: 18px;
}

.inline-pills {
    margin: 24px 0 10px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    margin-top: 18px;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: #fff;
    background: rgba(255, 255, 255, .04);
    font-weight: 900;
}

.creation-section,
.tools-section,
.use-section,
.faq-section {
    width: min(var(--max), 100%);
    margin: 0 auto;
}

.creation-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
}

.creation-card {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: 330px;
    padding: 18px;
    gap: 24px;
}

.creation-preview {
    display: grid;
    place-items: center;
    border-radius: 14px;
    background: linear-gradient(150deg, rgba(255, 91, 35, .16), rgba(25, 213, 166, .09));
}

.phone-frame {
    position: relative;
    width: 148px;
    height: 260px;
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    background: linear-gradient(160deg, #173a73, #071731);
    overflow: hidden;
}

.phone-frame span {
    position: absolute;
    left: 26px;
    right: 26px;
    top: 44px;
    height: 116px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(255, 91, 35, .8), rgba(25, 213, 166, .6));
}

.phone-frame i {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 32px;
    height: 34px;
    border-radius: 999px;
    background: rgba(0, 0, 0, .58);
}

.creation-copy {
    padding: 20px 4px;
}

.creation-copy blockquote {
    margin: 26px 0;
    padding-left: 14px;
    border-left: 3px solid var(--accent);
    color: rgba(255, 255, 255, .78);
    line-height: 1.7;
}

.creation-copy small {
    color: var(--green);
    font-weight: 900;
}

.optimization-section {
    width: min(var(--max), 100%);
    margin: 0 auto;
}

.optimization-grid {
    grid-template-columns: 1fr .86fr;
    margin-top: 30px;
}

.feature-list {
    display: grid;
    gap: 14px;
}

.feature-list article {
    padding: 22px 0 22px 44px;
    border-bottom: 1px solid var(--line);
}

.feature-list span {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.performance-panel {
    padding: 24px;
}

.panel-title {
    margin-bottom: 20px;
    color: var(--muted);
    font-weight: 900;
}

.metric-row {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 18px;
    align-items: center;
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.metric-row strong {
    font-size: 28px;
}

.metric-row em {
    color: var(--green);
    font-style: normal;
    font-weight: 900;
}

.models-band {
    margin-top: 54px;
    text-align: center;
}

.models-band p {
    color: var(--muted);
    font-weight: 900;
}

.models-band div {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 12px;
    margin-top: 18px;
}

.models-band span {
    min-height: 72px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 12px;
    color: rgba(255, 255, 255, .72);
    background: rgba(255, 255, 255, .035);
    font-weight: 900;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}

.tool-card {
    min-height: 250px;
    padding: 26px;
}

.chip-row {
    align-items: flex-start;
    margin-top: 26px;
}

.chip-row span {
    color: rgba(255, 255, 255, .84);
}

.publish-section {
    width: min(var(--max), 100%);
    margin: 0 auto;
}

.publish-layout {
    grid-template-columns: .9fr 1fr;
}

.schedule-card {
    min-height: 380px;
}

.schedule-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: center;
    padding: 16px 0;
    border-top: 1px solid var(--line);
}

.schedule-row strong,
.schedule-row small {
    display: block;
}

.schedule-row small {
    margin-top: 6px;
    color: var(--muted);
}

.schedule-row em {
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--green);
    background: rgba(25, 213, 166, .1);
    font-size: 12px;
    font-style: normal;
    font-weight: 900;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 34px;
}

.benefit-grid article,
.use-grid article {
    padding: 24px;
}

.use-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.use-grid article {
    min-height: 180px;
}

.faq-section {
    width: min(1024px, 100%);
}

.faq-list {
    display: grid;
    gap: 12px;
}

.faq-list details {
    padding: 24px 28px;
}

.faq-list summary {
    cursor: pointer;
    color: #fff;
    font-weight: 900;
}

.faq-list p {
    margin: 16px 0 0;
}

.cta-section {
    width: min(var(--max), 100%);
    margin: 0 auto;
    padding: 108px 24px;
    text-align: center;
}

.cta-section p {
    color: var(--muted);
    margin-bottom: 26px;
}

.site-footer {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 80px;
    width: min(var(--max), calc(100% - 48px));
    margin: 0 auto;
    padding: 54px 0 70px;
    border-top: 1px solid var(--line);
}

.site-footer p {
    margin: 14px 0 0;
    color: var(--muted-2);
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(3, minmax(120px, 1fr));
    gap: 50px;
}

.footer-columns div {
    display: grid;
    gap: 10px;
}

.footer-columns strong {
    margin-bottom: 8px;
}

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

.site-icp {
    grid-column: 1 / -1;
    display: grid;
    justify-items: center;
    gap: 8px;
    padding-top: 30px;
    border-top: 1px solid var(--line);
    color: var(--muted-2);
    font-size: 13px;
    text-align: center;
}

.site-icp a {
    color: inherit;
}

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

.reveal-item {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity .65s ease, transform .65s ease;
}

.reveal-item.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 980px) {
    .site-header {
        height: auto;
    }

    .nav-bar {
        flex-wrap: wrap;
        gap: 12px;
        padding: 14px 0;
    }

    .nav-links {
        order: 3;
        width: 100%;
        gap: 18px;
        overflow-x: auto;
        padding-bottom: 2px;
    }

    .header-actions {
        margin-left: auto;
    }

    .hero-section {
        padding-top: 162px;
        min-height: 620px;
    }

    .split-section,
    .publish-layout,
    .optimization-grid,
    .creation-grid {
        grid-template-columns: 1fr;
    }

    .stats-row,
    .steps-grid,
    .tool-grid,
    .benefit-grid,
    .use-grid,
    .models-band div {
        grid-template-columns: 1fr;
    }

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

    .steps-line {
        display: none;
    }

    .creation-card {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav-bar {
        width: min(100% - 24px, var(--max));
    }

    .brand {
        min-width: auto;
    }

    .brand-name small,
    .language-button {
        display: none;
    }

    .header-actions {
        gap: 6px;
    }

    .login-button,
    .register-button {
        padding-inline: 12px;
    }

    .nav-links {
        font-size: 13px;
    }

    .hero-section {
        padding: 150px 12px 0;
    }

    h1 {
        font-size: 40px;
        line-height: 1.08;
    }

    h2 {
        font-size: 34px;
        line-height: 1.08;
    }

    .prompt-console {
        border-radius: 16px;
    }

    .console-footer,
    .upload-row,
    .schedule-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .trend-card-grid {
        grid-template-columns: 1fr;
    }

    .trend-video-card {
        min-height: 190px;
    }

    .stats-row {
        gap: 22px;
    }

    .logo-marquee {
        font-size: 21px;
    }

    section {
        padding: 72px 12px;
    }

    .site-footer {
        width: min(100% - 24px, var(--max));
        grid-template-columns: 1fr;
    }

    .footer-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}