:root {
    --bg: #f7f3ec;
    --bg-soft: #fbf8f2;
    --surface: rgba(255, 255, 255, 0.74);
    --surface-strong: rgba(255, 255, 255, 0.9);
    --ink: #2b2b27;
    --muted: #6f6a61;
    --line: rgba(140, 111, 71, 0.18);
    --accent: #b46f28;
    --accent-strong: #d98b32;
    --accent-soft: #f4e4ca;
    --shadow: 0 30px 70px rgba(85, 54, 18, 0.10);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --display-font: "Songti SC", "STSong", "Noto Serif SC", serif;
    --body-font: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    color: var(--ink);
    font-family: var(--body-font);
    background:
        radial-gradient(circle at top left, rgba(255, 223, 173, 0.56), transparent 28%),
        radial-gradient(circle at bottom right, rgba(255, 232, 196, 0.76), transparent 24%),
        linear-gradient(180deg, #f6f1e7 0%, #faf7f1 46%, #f3ede2 100%);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.24;
    background-image:
        linear-gradient(rgba(255,255,255,0.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.16) 1px, transparent 1px);
    background-size: 26px 26px;
    mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
}

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

img {
    max-width: 100%;
    display: block;
}

.page-shell {
    width: min(1440px, calc(100vw - 40px));
    margin: 20px auto 36px;
}

.site-header {
    position: sticky;
    top: 18px;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 18px;
    margin-bottom: 18px;
    background: rgba(248, 244, 237, 0.82);
    border: 1px solid rgba(176, 136, 88, 0.14);
    border-radius: 999px;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 18px 50px rgba(90, 60, 20, 0.08);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.brand-mark {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: linear-gradient(135deg, #ea580c 0%, #f59e0b 100%);
    display: grid;
    place-items: center;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}

.brand-mark img {
    width: 34px;
    height: 34px;
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.brand-name {
    font-family: var(--display-font);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-tag {
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--muted);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 26px;
    font-size: 14px;
    color: var(--muted);
}

.site-nav a {
    position: relative;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 100%;
    height: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 220ms ease;
    background: linear-gradient(90deg, var(--accent), transparent);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
    transform: scaleX(1);
}

.nav-cta,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
}

.nav-cta {
    padding: 13px 18px;
    background: linear-gradient(135deg, #2f2317 0%, #5f3d15 100%);
    color: #fff9f0;
    font-size: 13px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.1);
}

.button {
    padding: 14px 22px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.button-primary {
    background: linear-gradient(135deg, #2f2317 0%, #74491a 100%);
    color: #fff8ef;
    box-shadow: 0 16px 32px rgba(104, 63, 14, 0.20);
}

.button-secondary {
    background: rgba(255,255,255,0.72);
    border: 1px solid rgba(147, 108, 66, 0.20);
    color: var(--ink);
}

.button:hover,
.button:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible {
    transform: translateY(-1px);
}

main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hero,
.section,
.site-footer {
    border: 1px solid rgba(176, 136, 88, 0.14);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}

.hero {
    position: relative;
    overflow: hidden;
    min-height: 760px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
    padding: 52px;
    background:
        linear-gradient(90deg, rgba(250,247,241,0.96) 0%, rgba(250,247,241,0.88) 42%, rgba(250,247,241,0.48) 72%, rgba(250,247,241,0.28) 100%),
        url("./assets/cover.png") center right / cover no-repeat;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 34px 34px auto;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 213, 142, 0.32) 0%, rgba(255, 213, 142, 0) 72%);
    pointer-events: none;
}

.hero-copy,
.hero-visual {
    position: relative;
    z-index: 1;
}

.hero-copy {
    align-self: center;
    max-width: 680px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    color: var(--accent);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.eyebrow::before {
    content: "";
    display: block;
    width: 44px;
    height: 1px;
    background: linear-gradient(90deg, var(--accent), transparent);
}

h1,
h2 {
    margin: 0;
    font-family: var(--display-font);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(46px, 6vw, 76px);
}

h2 {
    font-size: clamp(34px, 3vw, 52px);
}

.hero-text {
    max-width: 620px;
    margin-top: 22px;
    font-size: 18px;
    line-height: 1.85;
    color: rgba(43, 43, 39, 0.86);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 18px;
    margin-top: 28px;
    color: var(--muted);
    font-size: 13px;
}

.hero-meta a,
.contact-value a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.trust-bar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    padding: 16px;
    border: 1px solid rgba(176, 136, 88, 0.14);
    border-radius: 22px;
    background: linear-gradient(180deg, rgba(255,255,255,0.72) 0%, rgba(255,248,238,0.58) 100%);
    box-shadow: var(--shadow);
}

.trust-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 66px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255,255,255,0.74);
    border: 1px solid rgba(176, 136, 88, 0.14);
    color: #8a541c;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
}

.hero-visual {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
}

.hero-card {
    width: min(420px, 100%);
    padding: 30px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255,255,255,0.80) 0%, rgba(255,250,242,0.72) 100%);
    border: 1px solid rgba(176, 136, 88, 0.18);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 22px 56px rgba(88, 57, 18, 0.12);
}

.hero-card-label,
.path-phase,
.status-label,
.contact-label {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 5px 10px;
    background: var(--accent-soft);
    color: #8a541c;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-card h2 {
    margin-top: 14px;
    font-size: 38px;
}

.hero-card p {
    margin: 16px 0 0;
    color: var(--muted);
    line-height: 1.78;
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.hero-points span,
.founder-highlights span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.78);
    border: 1px solid rgba(176, 136, 88, 0.16);
    color: var(--muted);
    font-size: 13px;
}

.section {
    padding: 48px;
    background: linear-gradient(180deg, rgba(255,255,255,0.74) 0%, rgba(255,250,243,0.58) 100%);
}

.section-grid {
    display: flex;
    flex-direction: column;
    gap: 26px;
}

.section-head {
    max-width: 860px;
}

.section-head.narrow {
    max-width: 760px;
}

.section-head p {
    margin-top: 16px;
    color: var(--muted);
    line-height: 1.8;
    font-size: 16px;
}

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

.info-card,
.proof-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.76);
    border: 1px solid rgba(176, 136, 88, 0.16);
}

.card-index {
    display: inline-flex;
    margin-bottom: 18px;
    color: rgba(180, 111, 40, 0.48);
    font-size: 32px;
    font-family: var(--display-font);
}

.info-card h3,
.proof-card h3,
.evidence-item h3 {
    margin: 0 0 12px;
    font-size: 22px;
    font-family: var(--display-font);
}

.info-card p,
.proof-card p,
.evidence-item p {
    margin: 0;
    color: var(--muted);
    line-height: 1.72;
    font-size: 15px;
}

.solution-section {
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(255,250,243,0.95) 0%, rgba(255,250,243,0.92) 34%, rgba(255,250,243,0.80) 64%, rgba(255,250,243,0.68) 100%),
        url("./assets/solution.png") center right / cover no-repeat;
}

.pathway {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 14px;
    margin-top: 28px;
}

.path-card {
    padding: 22px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.74);
    border: 1px solid rgba(176, 136, 88, 0.16);
}

.path-card.is-active {
    border-color: rgba(180, 111, 40, 0.28);
    box-shadow: 0 12px 34px rgba(180, 111, 40, 0.08);
}

.path-card h3 {
    margin: 14px 0 10px;
    font-size: 30px;
    font-family: var(--display-font);
}

.path-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.path-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(180, 111, 40, 0.48);
    font-size: 34px;
}

.close-loop {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-top: 18px;
}

.loop-item {
    padding: 14px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.68);
    border: 1px solid rgba(176, 136, 88, 0.14);
    text-align: center;
    font-size: 14px;
    color: var(--muted);
}

.split-layout {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 30px;
    align-items: center;
}

.copy-panel p {
    margin: 16px 0 0;
    color: var(--muted);
    line-height: 1.82;
}

.evidence-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 24px;
}

.evidence-item {
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.74);
    border: 1px solid rgba(176, 136, 88, 0.14);
}

.visual-panel {
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-visual {
    padding: 18px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255,255,255,0.82) 0%, rgba(255,248,238,0.64) 100%);
    border: 1px solid rgba(176, 136, 88, 0.14);
    box-shadow: 0 24px 50px rgba(88, 57, 18, 0.10);
}

.floating-visual img {
    width: 100%;
    max-width: 580px;
    border-radius: 22px;
}

.product-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 28px;
    align-items: center;
}

.product-frame,
.portrait-frame {
    padding: 18px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255,255,255,0.82) 0%, rgba(255,247,236,0.62) 100%);
    border: 1px solid rgba(176, 136, 88, 0.14);
    box-shadow: 0 24px 50px rgba(88, 57, 18, 0.10);
}

.product-frame img {
    border-radius: 18px;
}

.product-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.fact-card {
    padding: 18px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.74);
    border: 1px solid rgba(176, 136, 88, 0.14);
}

.fact-card strong {
    display: block;
    margin-bottom: 8px;
    font-size: 18px;
    font-family: var(--display-font);
}

.fact-card span {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.65;
}

.product-status {
    padding: 22px;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,244,228,0.74) 0%, rgba(255,255,255,0.74) 100%);
    border: 1px solid rgba(176, 136, 88, 0.18);
}

.product-status p {
    margin: 14px 0 10px;
    font-size: 18px;
}

.product-status ul {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
}

.product-cta {
    margin-top: 18px;
    padding: 20px 22px;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(255,250,243,0.84) 0%, rgba(255,255,255,0.84) 100%);
    border: 1px solid rgba(176, 136, 88, 0.16);
}

.product-cta-copy p {
    margin: 14px 0 0;
    color: var(--muted);
    line-height: 1.75;
}

.product-cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 28px;
}

.metric-card {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.76);
    border: 1px solid rgba(176, 136, 88, 0.16);
    text-align: center;
}

.metric-value {
    font-family: var(--display-font);
    font-size: 42px;
    line-height: 1;
    color: var(--accent);
}

.metric-label {
    margin-top: 10px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.55;
}

.proof-grid {
    margin-top: 18px;
}

.founder-layout {
    grid-template-columns: 0.72fr 1.28fr;
}

.portrait-frame img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 18px;
}

.founder-title {
    margin-top: 10px;
    color: var(--accent);
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.founder-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.contact-section {
    background: linear-gradient(180deg, rgba(53,39,23,0.96) 0%, rgba(33,25,17,0.98) 100%);
    color: #f7efe4;
}

.contact-section .eyebrow,
.contact-section h2,
.contact-section p,
.contact-section .contact-value,
.contact-section a {
    color: inherit;
}

.contact-section .eyebrow::before {
    background: linear-gradient(90deg, rgba(255, 203, 120, 0.82), transparent);
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

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

.contact-grid > div {
    padding: 18px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
}

.contact-label {
    background: rgba(255, 212, 147, 0.12);
    color: #ffc97f;
}

.contact-value {
    margin-top: 12px;
    font-size: 20px;
    line-height: 1.5;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.contact-section .button-primary {
    background: linear-gradient(135deg, #f3c87c 0%, #d68b30 100%);
    color: #2c1f12;
}

.contact-section .button-secondary {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.16);
    color: #fff6eb;
}

.faq-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.faq-item {
    padding: 22px 24px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.78);
    border: 1px solid rgba(176, 136, 88, 0.16);
}

.faq-item h3 {
    margin: 0 0 10px;
    font-size: 20px;
    font-family: var(--display-font);
}

.faq-item p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
    font-size: 15px;
}

.site-footer {
    margin-top: 24px;
    padding: 28px 30px 34px;
    background: linear-gradient(180deg, rgba(255,255,255,0.62) 0%, rgba(255,249,241,0.76) 100%);
}

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

.footer-bottom {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(176, 136, 88, 0.14);
    color: var(--muted);
    font-size: 13px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-name {
    font-family: var(--display-font);
    font-size: 20px;
}

.footer-slogan {
    color: var(--muted);
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 1120px) {
    .page-shell {
        width: min(100vw - 24px, 1440px);
        margin: 12px auto 24px;
    }

    .site-header {
        border-radius: 26px;
        padding: 18px;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .site-nav {
        order: 3;
        width: 100%;
        justify-content: space-between;
        gap: 14px;
        padding-top: 6px;
    }

    .hero,
    .split-layout,
    .product-grid,
    .pathway,
    .trust-bar,
    .metrics,
    .three-up,
    .proof-grid,
    .contact-grid,
    .product-facts,
    .close-loop,
    .faq-list {
        grid-template-columns: 1fr;
    }

    .path-arrow {
        display: none;
    }

    .hero {
        min-height: auto;
        grid-template-columns: 1fr;
        padding: 34px 28px;
        gap: 24px;
    }

    .hero-visual {
        justify-content: flex-start;
    }

    .section {
        padding: 34px 24px;
    }

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

    .footer-top,
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 720px) {
    .site-nav {
        display: none;
    }

    .site-header {
        top: 6px;
        gap: 14px;
        padding: 14px 16px;
        border-radius: 22px;
    }

    .brand-copy {
        gap: 2px;
    }

    .brand-mark {
        width: 44px;
        height: 44px;
        border-radius: 14px;
    }

    .brand-mark img {
        width: 28px;
        height: 28px;
    }

    .brand-name {
        font-size: 16px;
    }

    .brand-tag {
        display: none;
    }

    .nav-cta {
        padding: 11px 14px;
        min-height: 44px;
        font-size: 12px;
    }

    .hero,
    .section,
    .site-footer {
        border-radius: 22px;
    }

    h1 {
        font-size: clamp(34px, 10vw, 42px);
        line-height: 1.12;
    }

    h2 {
        font-size: clamp(28px, 7vw, 34px);
    }

    .hero {
        padding: 28px 18px;
        background-position: 72% center;
    }

    .hero-card,
    .product-status,
    .floating-visual,
    .product-frame,
    .portrait-frame {
        border-radius: 20px;
    }

    .hero-card {
        width: 100%;
        padding: 22px;
    }

    .hero-text,
    .section-head p,
    .copy-panel p {
        font-size: 16px;
    }

    .hero-actions,
    .contact-actions,
    .product-cta-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .button,
    .contact-actions .button,
    .product-cta-actions .button {
        width: 100%;
    }

    .button {
        width: 100%;
        min-height: 46px;
    }

    .hero-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-top: 20px;
    }

    .trust-bar {
        padding: 12px;
        gap: 10px;
    }

    .trust-item,
    .info-card,
    .proof-card,
    .faq-item,
    .fact-card,
    .evidence-item,
    .contact-grid > div,
    .product-cta {
        padding: 18px;
    }

    .contact-value {
        font-size: 16px;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .footer-links {
        gap: 12px;
        font-size: 13px;
    }

    .footer-bottom {
        font-size: 12px;
    }

    .footer-bottom span {
        overflow-wrap: anywhere;
    }
}

@media (max-width: 480px) {
    .page-shell {
        width: calc(100vw - 16px);
    }

    .site-header {
        padding: 12px 14px;
    }

    .brand-name {
        font-size: 15px;
    }

    .hero {
        padding: 24px 16px;
    }

    .section {
        padding: 24px 16px;
    }

    .site-footer {
        padding: 24px 16px 28px;
    }

    .hero-text,
    .section-head p,
    .copy-panel p,
    .faq-item p {
        font-size: 15px;
        line-height: 1.75;
    }

    .button {
        padding: 13px 18px;
        font-size: 13px;
    }

    .metric-value {
        font-size: 34px;
    }
}