:root {
    --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.home-direction-page {
    margin: 0;
    min-width: 320px;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(15, 94, 168, 0.12), transparent 26%),
        radial-gradient(circle at right 18% top 8%, rgba(217, 137, 43, 0.12), transparent 18%),
        linear-gradient(180deg, var(--page-bg) 0%, var(--page-bg-end) 100%);
    font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body.home-direction-page::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
    opacity: var(--grid-opacity);
}

body.home-direction-page a {
    color: inherit;
    text-decoration: none;
}

body.home-direction-page img {
    display: block;
    max-width: 100%;
}

body.concept-a {
    --page-bg: #eef4f9;
    --page-bg-end: #f8fbfd;
    --grid-opacity: 0.16;
    --panel-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 251, 253, 0.94) 100%);
    --card-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(244, 248, 251, 0.92) 100%);
    --card-bg-strong: linear-gradient(180deg, #ffffff 0%, #f4f8fb 100%);
    --line: rgba(16, 34, 54, 0.1);
    --line-strong: rgba(16, 34, 54, 0.14);
    --ink: #102236;
    --muted: rgba(16, 34, 54, 0.72);
    --accent: #0f5ea8;
    --accent-strong: #0a4d89;
    --accent-soft: #e4f0fb;
    --highlight: #d9892b;
    --highlight-soft: rgba(217, 137, 43, 0.14);
    --shadow: 0 28px 80px rgba(16, 34, 54, 0.08);
    --shadow-soft: 0 16px 40px rgba(16, 34, 54, 0.06);
    --topbar-bg: rgba(255, 255, 255, 0.82);
    --chip-bg: rgba(15, 94, 168, 0.1);
    --chip-text: #0a4d89;
    --hero-glow: rgba(217, 137, 43, 0.16);
}

body.concept-b {
    --page-bg: #09111c;
    --page-bg-end: #101d2f;
    --grid-opacity: 0.08;
    --panel-bg: linear-gradient(180deg, rgba(9, 17, 28, 0.92) 0%, rgba(13, 25, 40, 0.94) 100%);
    --card-bg: linear-gradient(180deg, rgba(17, 29, 44, 0.94) 0%, rgba(11, 23, 37, 0.98) 100%);
    --card-bg-strong: linear-gradient(180deg, rgba(20, 36, 54, 0.98) 0%, rgba(12, 22, 34, 1) 100%);
    --line: rgba(214, 230, 248, 0.12);
    --line-strong: rgba(214, 230, 248, 0.18);
    --ink: #eef5fb;
    --muted: rgba(238, 245, 251, 0.72);
    --accent: #7ec8ff;
    --accent-strong: #54afe8;
    --accent-soft: rgba(126, 200, 255, 0.12);
    --highlight: #ebb366;
    --highlight-soft: rgba(235, 179, 102, 0.12);
    --shadow: 0 34px 90px rgba(3, 8, 16, 0.42);
    --shadow-soft: 0 18px 46px rgba(3, 8, 16, 0.28);
    --topbar-bg: rgba(8, 15, 24, 0.78);
    --chip-bg: rgba(126, 200, 255, 0.12);
    --chip-text: #b9e4ff;
    --hero-glow: rgba(126, 200, 255, 0.18);
}

.direction-page {
    padding: 22px 0 104px;
}

.direction-wrap {
    width: min(1180px, calc(100vw - 40px));
    margin: 0 auto;
}

.direction-topbar {
    position: sticky;
    top: 14px;
    z-index: 50;
    margin-bottom: 22px;
}

.direction-topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 14px 12px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--topbar-bg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(16px);
}

.direction-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.direction-brand__mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--highlight) 100%);
    color: #ffffff;
    font-size: 18px;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(15, 94, 168, 0.24);
}

.direction-brand strong,
.direction-status strong {
    display: block;
    font-size: 14px;
    line-height: 1.25;
}

.direction-brand span,
.direction-status span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    line-height: 1.5;
}

.direction-status {
    margin-left: auto;
    padding: 0 14px;
}

.direction-links {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.direction-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid transparent;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
    transition: color 0.25s var(--ease-standard), border-color 0.25s var(--ease-standard), background 0.25s var(--ease-standard), transform 0.25s var(--ease-standard);
}

.direction-links a:hover,
.direction-links a.is-active {
    color: var(--ink);
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-1px);
}

.panel {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 34px;
    background: var(--panel-bg);
    box-shadow: var(--shadow);
}

.panel::before {
    content: "";
    position: absolute;
    inset: auto auto 0 -8%;
    width: 240px;
    height: 240px;
    border-radius: 999px;
    background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%);
    pointer-events: none;
}

.panel::after {
    content: "";
    position: absolute;
    inset: 0 0 auto auto;
    width: 220px;
    height: 220px;
    border-radius: 999px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: 26px;
    padding: 42px;
}

.hero__copy,
.hero__visual,
.section-heading,
.contact-banner,
.contact-banner__meta,
.demo-main,
.mini-panel,
.fact-card,
.strategy-card,
.route-card,
.module-card,
.stage-card,
.case-card,
.contact-meta-card {
    position: relative;
    z-index: 1;
}

.hero__copy {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.hero__eyebrow,
.section-tag,
.demo-main__tag,
.route-card__tag,
.case-card__tag,
.stage-card__index {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    min-height: 34px;
    padding: 0 14px;
    border-radius: 999px;
    background: var(--chip-bg);
    color: var(--chip-text);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero__title,
.section-heading h2,
.contact-banner h2,
.demo-main h3,
.case-card h3 {
    margin: 0;
    color: var(--ink);
    font-size: 48px;
    line-height: 1.08;
    letter-spacing: -0.03em;
}

.section-heading h2,
.contact-banner h2 {
    font-size: 34px;
    line-height: 1.14;
}

.demo-main h3,
.case-card h3 {
    font-size: 30px;
    line-height: 1.2;
}

.hero__desc,
.section-heading p,
.strategy-card p,
.route-card p,
.module-card p,
.stage-card p,
.case-card p,
.contact-banner p,
.contact-meta-card li,
.demo-main p,
.mini-panel p {
    margin: 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.82;
}

.hero__actions,
.contact-banner__actions,
.demo-main__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
    color: #ffffff;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.02em;
    transition: transform 0.28s var(--ease-standard), box-shadow 0.28s var(--ease-standard), border-color 0.28s var(--ease-standard), background 0.28s var(--ease-standard), color 0.28s var(--ease-standard);
    box-shadow: 0 16px 30px rgba(15, 94, 168, 0.22);
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 34px rgba(15, 94, 168, 0.28);
}

.button.secondary {
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    color: var(--ink);
    box-shadow: none;
}

.button.ghost {
    background: rgba(255, 255, 255, 0.02);
    color: var(--muted);
    border-color: var(--line);
    box-shadow: none;
}

.hero__facts,
.strategy-grid,
.route-grid,
.module-grid,
.stage-grid,
.case-grid {
    display: grid;
    gap: 18px;
}

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

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

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

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

.fact-card,
.strategy-card,
.route-card,
.module-card,
.stage-card,
.case-card,
.mini-panel,
.contact-meta-card,
.demo-main,
.demo-tabs {
    border: 1px solid var(--line);
    border-radius: 26px;
    background: var(--card-bg);
    box-shadow: var(--shadow-soft);
}

.fact-card,
.strategy-card,
.module-card,
.stage-card,
.contact-meta-card,
.mini-panel {
    padding: 22px;
}

.fact-card span,
.module-card span,
.mini-panel span,
.contact-meta-card span {
    display: inline-block;
    margin-bottom: 10px;
    color: var(--accent-strong);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.fact-card strong,
.strategy-card strong,
.route-card strong,
.module-card strong,
.stage-card strong,
.contact-meta-card strong,
.mini-panel strong {
    display: block;
    margin-bottom: 10px;
    color: var(--ink);
    font-size: 18px;
    line-height: 1.4;
}

.hero__visual {
    display: grid;
    grid-template-rows: minmax(320px, 1fr) auto;
    gap: 18px;
}

.visual-frame {
    overflow: hidden;
    border-radius: 30px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.18) 0%, rgba(15, 94, 168, 0.06) 100%);
    min-height: 320px;
    box-shadow: var(--shadow-soft);
}

.visual-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.visual-stack {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.mini-panel {
    min-height: 100%;
}

.mini-panel strong {
    font-size: 17px;
}

.section {
    margin-top: 24px;
    padding: 34px;
}

.section-heading {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 26px;
}

.route-card {
    overflow: hidden;
    padding: 0;
}

.route-card__media {
    height: 220px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, rgba(15, 94, 168, 0.08) 100%);
}

.route-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.route-card__body {
    padding: 22px;
}

.route-card__tag,
.case-card__tag,
.demo-main__tag,
.stage-card__index {
    margin-bottom: 12px;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.chip-list span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: var(--highlight-soft);
    color: var(--ink);
    font-size: 12px;
    font-weight: 700;
}

.route-card__body .button,
.case-card .button {
    margin-top: 18px;
}

.module-card {
    min-height: 100%;
}

.module-card strong {
    font-size: 20px;
}

.demo-layout {
    display: grid;
    grid-template-columns: minmax(280px, 0.34fr) minmax(0, 0.66fr);
    gap: 18px;
}

.demo-tabs {
    padding: 16px;
    display: grid;
    gap: 12px;
}

.route-toggle {
    width: 100%;
    padding: 18px 18px 16px;
    border: 1px solid transparent;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--muted);
    text-align: left;
    transition: transform 0.28s var(--ease-standard), border-color 0.28s var(--ease-standard), background 0.28s var(--ease-standard), color 0.28s var(--ease-standard), box-shadow 0.28s var(--ease-standard);
    cursor: pointer;
    font: inherit;
}

.route-toggle strong {
    display: block;
    margin-bottom: 8px;
    color: var(--ink);
    font-size: 18px;
    line-height: 1.3;
}

.route-toggle span {
    display: block;
    font-size: 13px;
    line-height: 1.7;
}

.route-toggle:hover,
.route-toggle.is-active {
    border-color: var(--line-strong);
    background: var(--card-bg-strong);
    color: var(--ink);
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
}

.demo-main {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 18px;
    padding: 18px;
}

.demo-main__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    padding: 14px 10px 14px 10px;
}

.demo-main__visual {
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(15, 94, 168, 0.06) 100%);
    min-height: 330px;
}

.demo-main__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.demo-points {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

.demo-points li,
.contact-meta-card li {
    position: relative;
    padding-left: 18px;
}

.demo-points li::before,
.contact-meta-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--highlight) 0%, var(--accent) 100%);
}

.stage-card {
    min-height: 100%;
}

.stage-card__index {
    width: 42px;
    justify-content: center;
    padding: 0;
}

.stage-card strong {
    margin-top: 12px;
}

.case-card {
    overflow: hidden;
    padding: 0;
}

.case-card__media {
    height: 220px;
}

.case-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-card__body {
    padding: 24px;
}

.contact-banner {
    display: grid;
    grid-template-columns: minmax(0, 0.98fr) minmax(300px, 0.82fr);
    gap: 18px;
    align-items: stretch;
    padding: 34px;
}

.contact-banner__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
}

.contact-banner__meta {
    display: grid;
    gap: 16px;
}

.contact-meta-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

.direction-footer {
    margin-top: 20px;
    padding: 0 8px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.75;
    text-align: center;
}

.mobile-dock {
    display: none;
}

[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s var(--ease-standard), transform 0.75s var(--ease-standard);
    transition-delay: var(--delay, 0s);
}

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

.concept-b .panel::after {
    background: radial-gradient(circle, rgba(126, 200, 255, 0.12) 0%, transparent 70%);
}

.concept-b .button.secondary,
.concept-b .button.ghost {
    background: rgba(255, 255, 255, 0.02);
    color: var(--ink);
}

.concept-b .direction-links a:hover,
.concept-b .direction-links a.is-active {
    background: rgba(126, 200, 255, 0.08);
}

.concept-b .visual-frame,
.concept-b .demo-main__visual,
.concept-b .route-card__media {
    background: linear-gradient(180deg, rgba(126, 200, 255, 0.08) 0%, rgba(8, 17, 28, 0.22) 100%);
}

.concept-b .chip-list span {
    color: #f4f9fd;
}

@media screen and (max-width: 1100px) {
    .hero,
    .demo-layout,
    .contact-banner {
        grid-template-columns: 1fr;
    }

    .demo-main {
        grid-template-columns: 1fr;
    }

    .hero__facts,
    .route-grid,
    .strategy-grid,
    .module-grid,
    .stage-grid,
    .case-grid,
    .visual-stack {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .direction-topbar__inner {
        border-radius: 28px;
        flex-wrap: wrap;
    }

    .direction-status {
        order: 3;
        margin-left: 0;
        padding-left: 0;
    }
}

@media screen and (max-width: 760px) {
    .direction-page {
        padding-top: 16px;
        padding-bottom: 92px;
    }

    .direction-wrap {
        width: min(100vw - 24px, 1180px);
    }

    .direction-topbar {
        position: static;
    }

    .direction-topbar__inner {
        padding: 14px;
        border-radius: 24px;
    }

    .direction-brand,
    .direction-links {
        width: 100%;
    }

    .direction-links {
        justify-content: flex-start;
    }

    .panel,
    .fact-card,
    .strategy-card,
    .route-card,
    .module-card,
    .stage-card,
    .case-card,
    .mini-panel,
    .contact-meta-card,
    .demo-main,
    .demo-tabs {
        border-radius: 24px;
    }

    .hero,
    .section,
    .contact-banner {
        padding: 24px 20px;
    }

    .hero__title,
    .section-heading h2,
    .contact-banner h2,
    .demo-main h3,
    .case-card h3 {
        font-size: 30px;
    }

    .hero__desc,
    .section-heading p,
    .strategy-card p,
    .route-card p,
    .module-card p,
    .stage-card p,
    .case-card p,
    .contact-banner p,
    .contact-meta-card li,
    .demo-main p,
    .mini-panel p {
        font-size: 15px;
        line-height: 1.75;
    }

    .hero__facts,
    .route-grid,
    .strategy-grid,
    .module-grid,
    .stage-grid,
    .case-grid,
    .visual-stack {
        grid-template-columns: 1fr;
    }

    .route-card__media,
    .case-card__media,
    .visual-frame,
    .demo-main__visual {
        min-height: 220px;
        height: 220px;
    }

    .button {
        width: 100%;
    }

    .mobile-dock {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 12px;
        z-index: 60;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .mobile-dock a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 50px;
        border-radius: 999px;
        border: 1px solid var(--line);
        background: var(--card-bg-strong);
        color: var(--ink);
        font-size: 14px;
        font-weight: 800;
        box-shadow: var(--shadow-soft);
        backdrop-filter: blur(14px);
    }
}