/* ==========================================================================
   抖音风 · e0la77.cn
   多彩直播视频主题：靛蓝底色 + 青绿、珊瑚、紫色、暖黄辅助色
   ========================================================================== */

:root {
    --ink: #18233f;
    --ink-soft: #56617a;
    --navy: #273469;
    --navy-deep: #171f47;
    --teal: #20b8a6;
    --teal-pale: #dff6f1;
    --coral: #f06468;
    --coral-pale: #fff0eb;
    --purple: #8064d8;
    --purple-pale: #f0ebff;
    --yellow: #f4bc54;
    --yellow-pale: #fff6d9;
    --sky: #77c8e5;
    --paper: #fffdf8;
    --mist: #f4f6ff;
    --line: #dfe4f2;
    --shadow: 0 18px 45px rgba(31, 42, 91, 0.12);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    overflow-x: hidden;
    color: var(--ink);
    background: linear-gradient(135deg, #fffdf8 0%, #f7f4ff 46%, #eaf9f7 100%);
    font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.75;
}

body::before {
    position: fixed;
    z-index: -1;
    inset: 0;
    background:
        radial-gradient(circle at 8% 12%, rgba(240, 100, 104, 0.15), transparent 22%),
        radial-gradient(circle at 92% 24%, rgba(32, 184, 166, 0.14), transparent 24%),
        radial-gradient(circle at 50% 88%, rgba(128, 100, 216, 0.11), transparent 25%);
    content: "";
    pointer-events: none;
}

a {
    color: var(--navy);
    text-decoration: none;
    transition: color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

a:hover {
    color: var(--coral);
}

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

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

/* Header ------------------------------------------------------------------ */
.top-bar {
    padding: 8px 0;
    color: #e9edff;
    background: var(--navy-deep);
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    font-size: 12px;
}

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

.top-bar__links,
.top-links {
    display: flex;
    gap: 18px;
}

.top-bar a,
.top-links a {
    color: #dbe0ff;
}

.live-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 6px;
    background: var(--coral);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(240, 100, 104, 0.18);
}

.site-header {
    position: sticky;
    z-index: 30;
    top: 0;
    background: rgba(255, 253, 248, 0.92);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
}

.site-header__inner,
.header-inner {
    display: flex;
    min-height: 78px;
    align-items: center;
    gap: 22px;
}

.brand-lockup {
    display: inline-flex;
    flex-shrink: 0;
    align-items: center;
    gap: 10px;
    color: var(--ink);
}

.brand-lockup__logo,
.brand-logo {
    width: 44px;
    height: 44px;
    filter: drop-shadow(var(--fp-offset, 0px) 8px var(--fp-glow, 13px) rgba(32, 184, 166, 0.2));
}

.brand-lockup strong {
    display: block;
    color: var(--navy);
    font-size: 19px;
    line-height: 1.1;
}

.brand-lockup small {
    display: block;
    margin-top: 4px;
    color: var(--coral);
    font-size: 9px;
    letter-spacing: 0.16em;
}

.main-nav,
.header-inner nav {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: auto;
}

.main-nav a,
.header-inner nav a {
    padding: 9px 10px;
    color: var(--ink-soft);
    border-radius: 9px;
    font-size: 13px;
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.is-active,
.header-inner nav a:hover,
.header-inner nav a.active {
    color: var(--navy);
    background: var(--teal-pale);
    box-shadow: inset 0 -3px var(--teal);
}

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

.button,
.btn-primary,
.btn-secondary,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 19px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
}

.button:active,
.btn-primary:active,
.btn-secondary:active {
    transform: scale(0.97);
}

.button--primary,
.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--coral), #ff8d63);
    box-shadow: 0 10px 22px rgba(240, 100, 104, 0.24);
}

.button--primary:hover,
.btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
}

.button--secondary,
.btn-secondary {
    color: var(--navy);
    background: var(--yellow-pale);
    border-color: #f0d38a;
}

.button--ghost,
.btn-ghost {
    color: var(--navy);
    background: transparent;
    border-color: #cbd3e8;
}

.button--small,
.btn-small {
    min-height: 36px;
    padding: 8px 14px;
}

.hamburger {
    display: none;
    padding: 6px;
    background: transparent;
    border: 0;
}

.hamburger span {
    display: block;
    width: 23px;
    height: 2px;
    margin: 4px;
    background: var(--navy);
}

.search-bar {
    padding: 13px 0 12px;
    background: linear-gradient(90deg, var(--purple-pale), var(--teal-pale), var(--yellow-pale));
    border-bottom: 1px solid var(--line);
}

.search-box,
.search-inner {
    display: flex;
    max-width: 700px;
    margin: 0 auto;
    overflow: hidden;
    background: #fff;
    border: 1px solid #cdd6eb;
    border-radius: 999px;
    box-shadow: 0 9px 25px rgba(39, 52, 105, 0.08);
}

.search-box__icon,
.search-icon {
    padding-left: 18px;
    color: var(--purple);
    font-size: 24px;
}

.search-box input,
.search-inner input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    color: var(--ink);
    background: transparent;
    border: 0;
    outline: 0;
    font-size: 14px;
}

.search-box input::placeholder,
.search-inner input::placeholder {
    color: #8994ad;
}

.search-box button,
.search-inner button {
    padding: 0 25px;
    color: #fff;
    background: var(--purple);
    border: 0;
    font-weight: 700;
}

.search-box__note,
.search-note {
    margin-top: 4px;
    color: #6d7693;
    text-align: center;
    font-size: 11px;
}

.fp-noise {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

/* Shared typography and sections ---------------------------------------- */
.eyebrow {
    margin-bottom: 10px;
    color: var(--coral);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.section {
    padding: 78px 0;
}

.section--mint,
.section-soft {
    background: linear-gradient(135deg, var(--teal-pale), #f8ffff 58%, var(--yellow-pale));
}

.section--sun,
.section-alt {
    background: linear-gradient(135deg, var(--yellow-pale), #fffaf3 52%, var(--coral-pale));
}

.section--lavender {
    background: linear-gradient(135deg, var(--purple-pale), #fff 55%, #e8f5ff);
}

.section-title,
.section-heading {
    max-width: 820px;
    margin: 0 auto 30px;
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}

.section-heading--compact {
    margin-bottom: 20px;
}

.section-title {
    text-align: center;
}

.section-title h2,
.section-heading h2 {
    color: var(--navy);
    font-size: clamp(25px, 3vw, 38px);
    line-height: 1.25;
}

.section-title h2 span,
.section-heading h2 span {
    color: var(--coral);
}

.section-title p,
.section-heading p {
    margin-top: 8px;
    color: var(--ink-soft);
}

/* Existing home and category components -------------------------------- */
.hero {
    position: relative;
    display: flex;
    min-height: 600px;
    align-items: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(39, 52, 105, 0.12);
}

.hero-bg {
    position: absolute;
    z-index: -2;
    inset: 0;
    background-position: center;
    background-size: cover;
    filter: saturate(1.14);
}

.hero::after {
    position: absolute;
    z-index: -1;
    inset: 0;
    background: linear-gradient(90deg, rgba(23, 31, 71, 0.94), rgba(39, 52, 105, 0.72) 42%, rgba(240, 100, 104, 0.2)), linear-gradient(0deg, rgba(23, 31, 71, 0.86), transparent 45%);
    content: "";
}

.hero-content {
    max-width: 680px;
    padding: 72px 0;
    color: #fff;
}

.hero-badge {
    display: inline-flex;
    margin-bottom: 18px;
    padding: 6px 14px;
    color: #fff;
    background: rgba(32, 184, 166, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 999px;
    font-size: 12px;
}

.hero h1 {
    margin-bottom: 19px;
    color: #fff;
    font-size: clamp(36px, 6vw, 68px);
    letter-spacing: -0.04em;
    line-height: 1.15;
}

.hero h1 em {
    color: #ffd36f;
    font-style: normal;
}

.hero p {
    max-width: 630px;
    color: #f1f3ff;
    font-size: 16px;
    line-height: 1.95;
}

.hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 29px 0 35px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.hero-stat {
    padding-left: 12px;
    border-left: 3px solid var(--yellow);
}

.hero-stat .num {
    font-size: 22px;
    font-weight: 800;
}

.hero-stat .label {
    color: #d7ddf7;
    font-size: 11px;
}

.feature-grid,
.video-grid,
.expert-grid,
.logo-wall,
.guide-grid,
.comment-grid,
.list-grid,
.tool-grid,
.room-grid {
    display: grid;
    gap: 16px;
}

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

.feature-card {
    position: relative;
    overflow: hidden;
    padding: 24px;
    background: #fff;
    border: 1px solid #f3dca6;
    border-radius: var(--radius-md);
    box-shadow: 0 12px 28px rgba(39, 52, 105, 0.07);
}

.feature-card:nth-child(3n + 1) {
    border-top: 4px solid var(--coral);
}

.feature-card:nth-child(3n + 2) {
    border-top: 4px solid var(--teal);
}

.feature-card:nth-child(3n + 3) {
    border-top: 4px solid var(--purple);
}

.feature-card:hover,
.video-card:hover,
.news-card:hover,
.qa-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature-index {
    color: var(--coral);
    font-size: 12px;
    font-weight: 800;
}

.feature-card h3 {
    margin: 12px 0 6px;
    color: var(--navy);
    font-size: 19px;
}

.feature-card p,
.video-info p {
    color: var(--ink-soft);
    font-size: 13px;
}

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

.video-card {
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 26px rgba(39, 52, 105, 0.07);
    cursor: pointer;
    transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.video-card__media,
.video-thumb {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--navy);
}

.video-card__media img,
.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 320ms var(--ease);
}

.video-card:hover img {
    transform: scale(1.05);
}

.video-card__play,
.video-play-btn {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #fff;
    background: rgba(23, 31, 71, 0.48);
    opacity: 0;
    transition: opacity 180ms var(--ease);
}

.video-card:hover .video-card__play,
.video-card:hover .video-play-btn {
    opacity: 1;
}

.video-card__play::after,
.video-play-btn span,
.big-play {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    color: #fff;
    background: var(--coral);
    border-radius: 50%;
    font-size: 18px;
}

.video-card__duration,
.video-card__tag,
.video-duration,
.video-tag {
    position: absolute;
    bottom: 9px;
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 10px;
    font-weight: 700;
}

.video-card__duration,
.video-duration {
    right: 9px;
    color: #fff;
    background: rgba(23, 31, 71, 0.8);
}

.video-card__tag,
.video-tag {
    left: 9px;
    color: #fff;
    background: var(--teal);
}

.video-card__body,
.video-info {
    padding: 15px;
}

.video-card h3,
.video-info h3 {
    display: -webkit-box;
    overflow: hidden;
    margin-bottom: 7px;
    color: var(--navy);
    font-size: 15px;
    line-height: 1.45;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.video-card__meta,
.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
    padding-top: 9px;
    color: #7b86a0;
    border-top: 1px solid var(--line);
    font-size: 10px;
}

.video-card__meta span:first-child,
.video-meta span:first-child {
    color: var(--teal);
}

.split-feature,
.contact-layout,
.mosaic-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 44px;
}

.media-frame {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--navy);
    border: 6px solid #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

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

.media-frame::after {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(23, 31, 71, 0.45), transparent 58%, rgba(240, 100, 104, 0.2));
    content: "";
}

.frame-caption {
    position: absolute;
    z-index: 1;
    right: 18px;
    bottom: 18px;
    left: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-weight: 700;
}

.split-copy h2 {
    margin: 9px 0 14px;
    color: var(--navy);
    font-size: clamp(25px, 3vw, 40px);
    line-height: 1.28;
}

.split-copy p {
    color: var(--ink-soft);
    line-height: 1.9;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 11px;
    margin: 23px 0;
}

.metric {
    padding: 13px;
    text-align: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

.metric strong {
    display: block;
    color: var(--purple);
    font-size: 21px;
}

.metric span {
    color: var(--ink-soft);
    font-size: 11px;
}

.pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 20px 0;
}

.pill {
    display: inline-flex;
    padding: 5px 11px;
    color: var(--navy);
    background: var(--yellow-pale);
    border: 1px solid #f1d68c;
    border-radius: 999px;
    font-size: 11px;
}

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

.expert-card {
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 26px rgba(39, 52, 105, 0.07);
}

.expert-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.expert-copy {
    padding: 15px;
}

.expert-card h3 {
    color: var(--navy);
    font-size: 17px;
}

.expert-card .role {
    color: var(--coral);
    font-size: 11px;
    font-weight: 700;
}

.expert-card p {
    color: var(--ink-soft);
    font-size: 12px;
}

.logo-wall {
    grid-template-columns: repeat(6, 1fr);
}

.partner-logo {
    display: grid;
    min-height: 70px;
    place-items: center;
    color: var(--navy);
    background: #fff;
    border: 1px solid #d9d5f3;
    border-radius: var(--radius-sm);
    font-weight: 800;
}

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

.guide-card {
    min-height: 175px;
    padding: 21px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #bce9df;
    border-radius: var(--radius-md);
}

.guide-card .step {
    display: inline-grid;
    width: 30px;
    height: 30px;
    place-items: center;
    color: #fff;
    background: var(--teal);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 800;
}

.guide-card h3 {
    margin: 14px 0 7px;
    color: var(--navy);
    font-size: 16px;
}

.guide-card p {
    color: var(--ink-soft);
    font-size: 12px;
}

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

.comment-card {
    padding: 21px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #bce9df;
    border-radius: var(--radius-md);
}

.comment-card__top,
.comment-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}

.comment-card__top span,
.comment-top span {
    padding: 3px 7px;
    color: var(--teal);
    border: 1px solid #bce9df;
    border-radius: 999px;
    font-size: 10px;
}

.comment-card p {
    margin: 15px 0;
    color: var(--ink-soft);
    font-size: 13px;
}

.stars {
    color: var(--yellow);
    letter-spacing: 3px;
}

.faq-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.faq-item {
    padding: 16px 18px;
    background: #fff;
    border: 1px solid #d9d5f3;
    border-radius: var(--radius-sm);
}

.faq-item summary {
    color: var(--navy);
    cursor: pointer;
    font-weight: 700;
}

.faq-item p {
    padding-top: 10px;
    color: var(--ink-soft);
    font-size: 13px;
}

.share-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 9px;
    margin-top: 25px;
    color: var(--ink-soft);
    font-size: 12px;
}

.share-bar button {
    padding: 6px 12px;
    color: var(--navy);
    background: #fff;
    border: 1px solid #cbd3e8;
    border-radius: 999px;
    font-size: 11px;
}

/* Category pages --------------------------------------------------------- */
.breadcrumb {
    padding: 11px 0;
    color: var(--ink-soft);
    background: #fff;
    border-bottom: 1px solid var(--line);
    font-size: 12px;
}

.breadcrumb__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.breadcrumb a {
    color: var(--navy);
}

.page-hero {
    padding: 64px 0 52px;
    background: linear-gradient(135deg, var(--purple-pale), #fff 52%, var(--coral-pale));
    border-bottom: 1px solid var(--line);
}

.page-hero__grid,
.page-hero-grid {
    display: grid;
    grid-template-columns: 1fr 390px;
    align-items: center;
    gap: 60px;
}

.page-hero h1 {
    margin-bottom: 15px;
    color: var(--navy);
    font-size: clamp(32px, 5vw, 55px);
    line-height: 1.18;
}

.page-hero__description,
.page-hero p {
    max-width: 650px;
    color: var(--ink-soft);
    line-height: 1.95;
}

.page-hero__media,
.page-hero-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    margin: 0;
    background: var(--navy);
    border: 6px solid #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.page-hero__media img,
.page-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-hero__media figcaption,
.hero-image-label {
    position: absolute;
    right: 14px;
    bottom: 12px;
    left: 14px;
    padding: 5px 10px;
    color: #fff;
    background: rgba(39, 52, 105, 0.8);
    border-radius: 999px;
    font-size: 11px;
}

.surface {
    padding: 28px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #f1d68c;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 26px rgba(39, 52, 105, 0.06);
}

.dark-surface {
    padding: 26px;
    color: #fff;
    background: linear-gradient(135deg, var(--navy), #604fa9 55%, var(--coral));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.dark-surface h2,
.dark-surface p,
.dark-surface .eyebrow {
    color: #fff;
}

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

.news-card {
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 24px rgba(39, 52, 105, 0.06);
    transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.news-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.news-card-copy {
    padding: 18px;
}

.news-card h3 {
    margin: 6px 0;
    color: var(--navy);
    font-size: 17px;
}

.news-card p {
    color: var(--ink-soft);
    font-size: 12px;
}

.news-card .meta,
.article-meta {
    color: var(--teal);
    font-size: 11px;
}

.qa-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.qa-card {
    padding: 21px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #d9d5f3;
    border-left: 5px solid var(--purple);
    border-radius: var(--radius-md);
    transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.qa-card .qa-no {
    color: var(--purple);
    font-size: 11px;
    font-weight: 800;
}

.qa-card h3 {
    margin: 5px 0;
    color: var(--navy);
    font-size: 18px;
}

.qa-card p {
    color: var(--ink-soft);
    font-size: 13px;
}

.timeline {
    position: relative;
    display: grid;
    gap: 18px;
}

.timeline::before {
    position: absolute;
    top: 12px;
    bottom: 12px;
    left: 23px;
    width: 2px;
    background: linear-gradient(var(--teal), var(--coral), var(--purple));
    content: "";
}

.timeline-item {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 18px;
}

.timeline-dot {
    z-index: 1;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    color: #fff;
    background: var(--coral);
    border: 4px solid #fff;
    border-radius: 50%;
    font-weight: 800;
    box-shadow: 0 6px 14px rgba(240, 100, 104, 0.25);
}

.timeline-copy {
    padding: 17px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

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

.tool-card {
    min-height: 200px;
    padding: 23px;
    color: var(--ink);
    background: linear-gradient(145deg, #fff, var(--teal-pale));
    border: 1px solid #bce9df;
    border-radius: var(--radius-md);
}

.tool-card:nth-child(3n + 2) {
    background: linear-gradient(145deg, #fff, var(--yellow-pale));
    border-color: #f1d68c;
}

.tool-card:nth-child(3n + 3) {
    background: linear-gradient(145deg, #fff, var(--purple-pale));
    border-color: #d9d5f3;
}

.tool-icon {
    color: var(--purple);
    font-size: 28px;
}

.tool-card h3 {
    color: var(--navy);
    font-size: 19px;
}

.tool-card p {
    color: var(--ink-soft);
    font-size: 13px;
}

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

.room-card {
    min-height: 220px;
    padding: 26px;
    color: #fff;
    border-radius: var(--radius-md);
}

.room-card h3 {
    margin: 38px 0 4px;
    font-size: 24px;
}

.room-cyan {
    background: linear-gradient(145deg, #149d9b, #273469);
}

.room-coral {
    background: linear-gradient(145deg, #f06468, #8064d8);
}

.room-violet {
    background: linear-gradient(145deg, #8064d8, #273469);
}

.checklist {
    display: grid;
    gap: 12px;
}

.checklist label {
    padding: 13px 15px;
    color: var(--ink-soft);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    font-size: 13px;
}

.checklist input {
    accent-color: var(--teal);
}

.contact-card {
    padding: 28px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #f1d68c;
    border-radius: var(--radius-lg);
}

.contact-card h2 {
    color: var(--navy);
    font-size: 25px;
}

.contact-card p {
    color: var(--ink-soft);
}

.contact-list {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.contact-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
}

.contact-item b {
    color: var(--teal);
}

.contact-item span {
    color: var(--ink-soft);
    font-size: 13px;
}

.map-card {
    position: relative;
    min-height: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy), var(--purple) 55%, var(--coral));
    border-radius: var(--radius-lg);
}

.map-grid {
    position: absolute;
    inset: 0;
    opacity: 0.32;
    background-image: linear-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
    background-size: 34px 34px;
    transform: rotate(-7deg) scale(1.2);
}

.map-pin {
    position: absolute;
    top: 42%;
    left: 52%;
    width: 26px;
    height: 26px;
    background: var(--yellow);
    border-radius: 50% 50% 50% 0;
    transform: rotate(-45deg);
}

.map-label {
    position: absolute;
    bottom: 22px;
    left: 24px;
    color: #fff;
}

.map-label strong {
    display: block;
    font-size: 22px;
}

.map-label span {
    color: #f3edff;
    font-size: 12px;
}

/* New article layouts ---------------------------------------------------- */
.article-shell,
.qa-shell {
    padding: 62px 0 78px;
}

.article-shell {
    background: linear-gradient(135deg, #fffdf8, var(--purple-pale) 52%, var(--teal-pale));
}

.article-header,
.qa-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 410px;
    align-items: center;
    gap: 50px;
    margin-bottom: 38px;
}

.article-header h1,
.qa-header h1 {
    margin: 10px 0 18px;
    color: var(--navy);
    font-size: clamp(31px, 4.5vw, 56px);
    line-height: 1.2;
}

.article-lead,
.qa-header__summary {
    max-width: 700px;
    margin-bottom: 20px;
    color: var(--ink-soft);
    font-size: 17px;
    line-height: 1.9;
}

.article-meta,
.qa-header__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--teal);
    font-size: 12px;
}

.article-header__media,
.qa-header__media {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    margin: 0;
    background: var(--navy);
    border: 8px solid #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.article-header__media img,
.qa-header__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-header__media figcaption,
.qa-header__media figcaption {
    position: absolute;
    right: 16px;
    bottom: 14px;
    left: 16px;
    padding: 6px 10px;
    color: #fff;
    background: rgba(39, 52, 105, 0.8);
    border-radius: 999px;
    font-size: 11px;
}

.article-layout,
.qa-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    align-items: start;
    gap: 24px;
}

.article-content,
.qa-content {
    min-width: 0;
}

.article-content--news {
    padding: 30px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
}

.article-intro-card,
.article-block,
.article-action-card,
.qa-answer-card,
.qa-steps-card,
.qa-pitfall-card,
.qa-practice-card {
    border-radius: var(--radius-md);
}

.article-intro-card {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 18px;
    padding: 22px;
    background: var(--navy);
    color: #fff;
}

.article-intro-card__number,
.article-block__index {
    color: var(--yellow);
    font-size: 24px;
    font-weight: 800;
}

.article-intro-card h2,
.article-block h2,
.article-action-card h2,
.qa-answer-card h2,
.qa-steps-card h2,
.qa-pitfall-card h2,
.qa-practice-card h2 {
    color: var(--navy);
    font-size: 23px;
    line-height: 1.35;
}

.article-intro-card h2 {
    color: #fff;
}

.article-intro-card p,
.article-block p,
.article-action-card p,
.qa-answer-card p,
.qa-pitfall-card p,
.qa-practice-card p {
    margin-top: 10px;
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 2;
}

.article-intro-card p {
    color: #e9edff;
}

.article-block {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 18px;
    margin-top: 18px;
    padding: 24px 22px;
    background: #fff;
    border-left: 5px solid var(--teal);
}

.article-block:nth-of-type(3n) {
    border-left-color: var(--coral);
}

.article-block:nth-of-type(4n) {
    border-left-color: var(--purple);
}

.article-block--tint {
    background: var(--yellow-pale);
}

.article-action-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    margin-top: 22px;
    padding: 24px;
    background: linear-gradient(135deg, var(--teal-pale), var(--yellow-pale));
    border: 1px solid #bce9df;
}

.article-action-card__links,
.qa-practice-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article-sidebar,
.qa-sidebar {
    position: sticky;
    top: 105px;
}

.sidebar-card {
    margin-bottom: 16px;
    padding: 20px;
    color: #fff;
    background: var(--navy);
    border-radius: var(--radius-md);
}

.sidebar-card--accent {
    background: linear-gradient(135deg, var(--purple), var(--coral));
}

.sidebar-card h2 {
    margin-bottom: 10px;
    color: #fff;
    font-size: 18px;
}

.sidebar-card a {
    display: block;
    padding: 8px 0;
    color: #eef1ff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 12px;
}

.sidebar-card .eyebrow {
    color: var(--yellow);
}

.qa-shell {
    background: linear-gradient(135deg, var(--yellow-pale), #fff 45%, var(--purple-pale));
}

.qa-header {
    grid-template-columns: minmax(0, 1fr) 360px;
}

.qa-header__summary {
    padding-left: 16px;
    border-left: 5px solid var(--purple);
}

.qa-answer-card {
    padding: 28px;
    background: #fff;
    border: 1px solid #d9d5f3;
    box-shadow: 0 12px 28px rgba(128, 100, 216, 0.1);
}

.qa-answer-card__label,
.qa-steps-card__badge {
    color: var(--purple);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.qa-steps-card {
    margin-top: 18px;
    padding: 28px;
    background: var(--purple-pale);
    border: 1px solid #d9d5f3;
}

.qa-steps-card__badge {
    padding: 6px 10px;
    background: #fff;
    border-radius: 999px;
}

.qa-steps {
    display: grid;
    gap: 12px;
    list-style: none;
    counter-reset: qa-step;
}

.qa-steps li {
    display: grid;
    grid-template-columns: 42px 1fr;
    align-items: center;
    gap: 14px;
    padding: 12px;
    background: #fff;
    border-radius: var(--radius-sm);
}

.qa-steps li > span {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #fff;
    background: var(--purple);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 800;
}

.qa-steps p {
    color: var(--ink);
    font-size: 14px;
}

.qa-pitfall-card {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 16px;
    margin-top: 18px;
    padding: 24px;
    background: var(--coral-pale);
    border: 1px solid #ffc7bc;
}

.qa-pitfall-card__icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #fff;
    background: var(--coral);
    border-radius: 50%;
    font-weight: 800;
}

.qa-practice-card {
    margin-top: 18px;
    padding: 24px;
    background: var(--teal-pale);
    border: 1px solid #bce9df;
}

.qa-practice-card__links {
    margin-top: 18px;
}

.qa-practice-card__links a {
    padding: 7px 12px;
    color: var(--navy);
    background: #fff;
    border-radius: 999px;
    font-size: 12px;
}

.qa-sidebar__poster {
    min-height: 220px;
    margin-bottom: 16px;
    padding: 24px;
    color: #fff;
    background: linear-gradient(145deg, var(--navy), var(--coral) 58%, var(--yellow));
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.qa-sidebar__poster span {
    color: var(--yellow);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.qa-sidebar__poster strong {
    display: block;
    margin: 45px 0 6px;
    font-size: 25px;
    line-height: 1.25;
}

.qa-sidebar__poster small {
    color: #fff5d1;
}

/* Footer and interaction ------------------------------------------------- */
.site-footer {
    padding: 56px 0 20px;
    color: #dbe0ff;
    background: var(--navy-deep);
    border-top: 8px solid var(--coral);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 30px;
}

.footer-brand p {
    max-width: 380px;
    margin-top: 16px;
    color: #c6ccef;
    font-size: 12px;
}

.footer-brand .brand-lockup strong {
    color: #fff;
}

.footer-brand .brand-lockup small {
    color: var(--yellow);
}

.update-time {
    color: #8de0d2 !important;
}

.footer-domain {
    color: #ffb8a6 !important;
}

.footer-column h2,
.footer-col h4 {
    margin-bottom: 12px;
    color: #fff;
    font-size: 13px;
}

.footer-column a,
.footer-col a {
    display: block;
    margin: 8px 0;
    color: #c6ccef;
    font-size: 12px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 35px;
    padding-top: 17px;
    color: #a6afd8;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 11px;
}

.toast {
    position: fixed;
    z-index: 100;
    bottom: 25px;
    left: 50%;
    padding: 10px 18px;
    color: var(--navy);
    background: #fff;
    border: 1px solid var(--teal);
    border-radius: 999px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translate(-50%, 20px);
    transition: opacity 180ms var(--ease), transform 180ms var(--ease);
}

.toast.is-visible,
.toast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

.video-modal {
    position: fixed;
    z-index: 90;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(23, 31, 71, 0.78);
}

.modal-panel {
    position: relative;
    width: min(680px, 100%);
    padding: 24px;
    color: var(--ink);
    background: #fff;
    border-radius: var(--radius-lg);
}

.modal-close {
    position: absolute;
    z-index: 1;
    top: 8px;
    right: 14px;
    color: var(--navy);
    background: transparent;
    border: 0;
    font-size: 26px;
}

.fake-player {
    position: relative;
    display: grid;
    aspect-ratio: 16 / 9;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--navy), var(--purple) 52%, var(--coral));
    border-radius: var(--radius-md);
}

.fake-player__button,
.fake-play {
    display: grid;
    width: 64px;
    height: 64px;
    place-items: center;
    color: #fff;
    background: var(--coral);
    border-radius: 50%;
    font-size: 24px;
}

.fake-player span {
    position: absolute;
    bottom: 15px;
    left: 17px;
    font-size: 12px;
}

/* Responsive ------------------------------------------------------------- */
@media (max-width: 1050px) {
    .main-nav a,
    .header-inner nav a {
        padding-right: 7px;
        padding-left: 7px;
        font-size: 12px;
    }

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

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

@media (max-width: 780px) {
    .container {
        width: min(100% - 28px, 680px);
    }

    .top-bar__links,
    .top-links {
        display: none;
    }

    .site-header__inner,
    .header-inner {
        min-height: 68px;
    }

    .main-nav,
    .header-inner nav {
        position: absolute;
        top: 68px;
        right: 14px;
        left: 14px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 8px;
        background: #fff;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow);
    }

    .main-nav.is-open,
    .header-inner nav.open {
        display: flex;
    }

    .main-nav a,
    .header-inner nav a {
        padding: 11px 13px;
    }

    .site-header__actions .button--ghost,
    .header-actions .btn-ghost {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .hero {
        min-height: 650px;
    }

    .hero-content {
        padding: 52px 0 70px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-grid,
    .video-grid,
    .list-grid,
    .tool-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .split-feature,
    .contact-layout,
    .mosaic-grid,
    .page-hero__grid,
    .page-hero-grid,
    .article-header,
    .qa-header,
    .article-layout,
    .qa-layout {
        grid-template-columns: 1fr;
    }

    .page-hero__media,
    .page-hero-image,
    .article-header__media,
    .qa-header__media {
        max-width: 560px;
    }

    .article-sidebar,
    .qa-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    .logo-wall {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .faq-list,
    .qa-list,
    .room-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }

    .article-action-card {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .section,
    .article-shell,
    .qa-shell {
        padding: 56px 0;
    }

    .search-box input,
    .search-inner input {
        min-width: 0;
    }

    .search-box button,
    .search-inner button {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 38px;
    }

    .feature-grid,
    .video-grid,
    .list-grid,
    .tool-grid,
    .expert-grid,
    .comment-grid,
    .guide-grid {
        grid-template-columns: 1fr;
    }

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

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

    .article-content--news,
    .qa-answer-card,
    .qa-steps-card,
    .qa-pitfall-card,
    .qa-practice-card {
        padding: 20px;
    }

    .article-sidebar,
    .qa-sidebar {
        display: block;
    }

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

    .footer-bottom {
        display: block;
    }

    .footer-bottom span {
        display: block;
        margin-top: 6px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}