/* Source: ai-v5-tokens.css */
:root {
    --ai-v5-bg: #ffffff;
    --ai-v5-bg-soft: #fcfaf8;
    --ai-v5-surface: #ffffff;
    --ai-v5-surface-strong: #ffffff;
    --ai-v5-surface-muted: #fcfaf8;
    --ai-v5-border: #f1f2f4;
    --ai-v5-border-soft: #ece7e0;
    --ai-v5-shadow: 0 8px 24px rgba(29, 20, 12, 0.04);
    --ai-v5-shadow-soft: 0 4px 12px rgba(29, 20, 12, 0.05);
    --ai-v5-text: #25170d;
    --ai-v5-text-soft: #6f6156;
    --ai-v5-text-mute: #99877a;
    --ai-v5-accent: #ff8c00;
    --ai-v5-accent-strong: #ff6a00;
    --ai-v5-accent-soft: rgba(255, 140, 0, 0.12);
    --ai-v5-success: #22c55e;
    --ai-v5-danger: #e55f5f;
    --ai-v5-radius-xl: 28px;
    --ai-v5-radius-lg: 22px;
    --ai-v5-radius-md: 16px;
    --ai-v5-radius-sm: 12px;
    --ai-v5-font-display-en: "Space Grotesk", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --ai-v5-font-body-en: "Space Grotesk", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    --ai-v5-font-display-zh: "Space Grotesk", "Noto Sans SC", "Microsoft YaHei", "SimSun", sans-serif;
    --ai-v5-font-body-zh: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "SimSun", sans-serif;
    --ai-v5-font-reading-zh: "SimSun", "Songti SC", "STSong", "Noto Serif SC", serif;
    --ai-v5-font-display: var(--ai-v5-font-display-en);
    --ai-v5-font-body: var(--ai-v5-font-body-en);
    --ai-v5-font-reading: var(--ai-v5-font-body-en);
    --ai-v5-weight-regular: 400;
    --ai-v5-weight-medium: 500;
    --ai-v5-weight-strong: 600;
    --ai-v5-weight-display: 600;
    --ai-v5-page-width: 1400px;
}

html[lang|="zh"] {
    --ai-v5-font-display: var(--ai-v5-font-display-zh);
    --ai-v5-font-body: var(--ai-v5-font-body-zh);
    --ai-v5-font-reading: var(--ai-v5-font-reading-zh);
    --ai-v5-weight-display: 500;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.ai-v5-body {
    margin: 0;
    min-height: 100vh;
    background: var(--ai-v5-bg);
    color: var(--ai-v5-text);
    font-family: var(--ai-v5-font-body);
}

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

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

button,
input,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.material-symbols-outlined {
    font-variation-settings: "FILL" 0, "wght" 500, "GRAD" 0, "opsz" 24;
}

.material-symbols-outlined.filled {
    font-variation-settings: "FILL" 1, "wght" 600, "GRAD" 0, "opsz" 24;
}

/* Source: ai-v5-layout.css */
.ai-v5-orb,
.ai-v5-grain {
    display: none;
}

.ai-v5-header,
.ai-v5-footer,
.ai-v5-page {
    position: relative;
    z-index: 1;
}

.ai-v5-header {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 0;
    border-bottom: 1px solid var(--ai-v5-border);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
}

.ai-v5-header__inner,
.ai-v5-footer__inner,
.ai-v5-shell {
    width: min(var(--ai-v5-page-width), 100%);
    margin: 0 auto;
}

.ai-v5-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 24px;
    min-height: 64px;
    padding: 0 16px;
    position: relative;
}

.ai-v5-header__left,
.ai-v5-header__actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.ai-v5-header__left {
    min-width: 0;
    justify-self: start;
}

.ai-v5-header__actions {
    justify-self: end;
}

.ai-v5-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--ai-v5-font-display);
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-header__logo {
    width: 168px;
    max-width: min(42vw, 168px);
    height: auto;
    display: block;
}

.ai-v5-brand__icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, var(--ai-v5-accent), var(--ai-v5-accent-strong));
    box-shadow: none;
}

.ai-v5-brand__label {
    display: inline-block;
    font-size: 1rem;
    letter-spacing: 0.01em;
    color: #231814;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
    .ai-v5-brand__label {
        background-image: linear-gradient(
            112deg,
            #ff37c7 0%,
            #b237ff 20%,
            #2f57ff 44%,
            #49b6ff 66%,
            #59e9ff 82%,
            #67f85f 100%
        );
        background-size: 140% 140%;
        background-position: center;
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
        color: transparent;
    }
}

.ai-v5-nav {
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    gap: 16px;
    width: min(580px, 100%);
    justify-self: center;
    min-width: 0;
}

.ai-v5-nav-dropdown {
    position: relative;
}

.ai-v5-nav__link,
.ai-v5-header__link,
.ai-v5-footer__links a {
    color: var(--ai-v5-text-soft);
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", var(--ai-v5-font-body);
    font-size: 0.95rem;
    font-weight: var(--ai-v5-weight-regular);
    letter-spacing: 0;
    transition: color 0.2s ease, opacity 0.2s ease;
}

.ai-v5-nav__link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0 4px;
    text-align: center;
}

.ai-v5-nav__link:hover,
.ai-v5-header__link:hover,
.ai-v5-footer__links a:hover {
    color: var(--ai-v5-accent-strong);
}

.ai-v5-nav-dropdown__toggle {
    list-style: none;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 42px;
    padding: 7px 14px 7px 18px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    background: linear-gradient(135deg, #FF9D00 0%, #FF5E00 100%);
    color: #fff;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", var(--ai-v5-font-body);
    font-size: 0.95rem;
    font-weight: var(--ai-v5-weight-medium);
    letter-spacing: 0;
    box-shadow: 0 4px 12px rgba(255, 94, 0, 0.3);
    cursor: pointer;
    transition: box-shadow 0.25s ease, filter 0.25s ease, opacity 0.25s ease;
}

.ai-v5-nav-dropdown__toggle::-webkit-details-marker {
    display: none;
}

.ai-v5-nav-dropdown__toggle::marker {
    content: "";
}

.ai-v5-nav-dropdown__label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.ai-v5-nav-dropdown__toggle:hover,
.ai-v5-nav-dropdown[open] .ai-v5-nav-dropdown__toggle {
    color: #fff;
    box-shadow: 0 6px 18px rgba(255, 94, 0, 0.45);
    filter: brightness(1.05);
}

.ai-v5-nav-dropdown__label i {
    font-size: 1.1rem;
}

.ai-v5-nav-dropdown__caret-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.ai-v5-nav-dropdown__caret {
    width: 14px;
    height: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    line-height: 1;
    color: #fff;
    font-variation-settings: "FILL" 1, "wght" 700, "GRAD" 0, "opsz" 20;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.ai-v5-nav-dropdown[open] .ai-v5-nav-dropdown__caret {
    transform: rotate(180deg);
}

.ai-v5-nav-dropdown__menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    min-width: 180px;
    display: none;
    gap: 0;
    padding: 8px;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 30px rgba(255, 94, 0, 0.15);
    backdrop-filter: blur(14px);
}

.ai-v5-nav-dropdown[open] .ai-v5-nav-dropdown__menu {
    display: grid;
}

.ai-v5-nav-dropdown__item {
    display: grid;
    grid-template-columns: 18px 1fr;
    gap: 10px;
    align-items: center;
    min-height: 40px;
    padding: 10px 16px;
    border-radius: 8px;
    color: #333;
    font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", var(--ai-v5-font-body);
    font-size: 0.88rem;
    font-weight: var(--ai-v5-weight-regular);
    letter-spacing: 0;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.ai-v5-nav-dropdown__item i {
    color: var(--ai-v5-accent-strong);
    font-size: 0.95rem;
}

.ai-v5-nav-dropdown__item:hover {
    background: #fff3e0;
    color: #FF5E00;
    transform: translateX(4px);
}

.ai-v5-nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.5);
    color: var(--ai-v5-text);
}

.ai-v5-search {
    position: relative;
    width: min(256px, 40vw);
}

.ai-v5-search__icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ai-v5-text-mute);
    font-size: 1.15rem;
}

.ai-v5-search__input {
    width: 100%;
    min-height: 40px;
    padding: 0 14px 0 42px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 999px;
    background: #f7f7f8;
    color: var(--ai-v5-text);
    font-size: 0.88rem;
    outline: none;
}

.ai-v5-search__input:focus {
    border-color: rgba(255, 140, 0, 0.38);
    box-shadow: 0 0 0 4px rgba(255, 140, 0, 0.10);
}

.ai-v5-search__input::placeholder {
    color: rgba(95, 102, 112, 0.58);
    font-size: 0.82rem;
    font-weight: var(--ai-v5-weight-regular);
}

.ai-v5-language {
    position: relative;
}

.ai-v5-language[open] {
    z-index: 60;
}

.ai-v5-language__toggle {
    list-style: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 12px 0 14px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 999px;
    background: #fff;
    color: var(--ai-v5-text-soft);
    font-size: 0.92rem;
    font-weight: var(--ai-v5-weight-medium);
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.ai-v5-language__toggle::-webkit-details-marker {
    display: none;
}

.ai-v5-language__caret-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: auto;
    height: auto;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.ai-v5-language__toggle:hover,
.ai-v5-language[open] .ai-v5-language__toggle {
    color: var(--ai-v5-accent-strong);
    border-color: rgba(255, 140, 0, 0.24);
    box-shadow: 0 8px 20px rgba(255, 140, 0, 0.10);
}

.ai-v5-language__caret {
    width: 14px;
    height: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    line-height: 1;
    color: rgba(128, 112, 96, 0.9);
    font-variation-settings: "FILL" 1, "wght" 700, "GRAD" 0, "opsz" 20;
    transition: transform 0.2s ease, color 0.2s ease;
}

.ai-v5-language__toggle:hover .ai-v5-language__caret,
.ai-v5-language[open] .ai-v5-language__caret {
    color: var(--ai-v5-accent-strong);
}

.ai-v5-language[open] .ai-v5-language__caret {
    transform: rotate(180deg);
}

.ai-v5-language__menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 168px;
    display: grid;
    gap: 4px;
    padding: 10px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 36px rgba(29, 20, 12, 0.10);
    backdrop-filter: blur(12px);
}

.ai-v5-language__item {
    display: flex;
    align-items: center;
    min-height: 38px;
    padding: 0 12px;
    border-radius: 12px;
    color: var(--ai-v5-text-soft);
    font-size: 0.9rem;
    transition: background 0.2s ease, color 0.2s ease;
}

.ai-v5-language__item:hover,
.ai-v5-language__item.is-active {
    background: rgba(255, 140, 0, 0.10);
    color: var(--ai-v5-accent-strong);
}

.ai-v5-page {
    padding: 32px 16px 60px;
}

.ai-v5-shell {
    display: grid;
    gap: 28px;
}

.ai-v5-footer {
    margin-top: 48px;
    padding: 48px 16px 28px;
    background: #fafafa;
    border-top: 1px solid var(--ai-v5-border);
}

.ai-v5-footer__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(180px, 1fr));
    gap: 28px;
    padding: 0;
}

.ai-v5-header__cta {
    min-width: 88px;
}

.ai-v5-footer__links {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.ai-v5-footer__links--stack {
    display: grid;
    align-items: start;
    gap: 12px;
}

.ai-v5-footer__brand {
    display: grid;
    gap: 18px;
}

.ai-v5-footer__logo {
    height: 42px;
    width: auto;
}

.ai-v5-footer__lead {
    margin: 0;
    color: var(--ai-v5-text-soft);
    line-height: 1.8;
    font-size: 0.95rem;
}

.ai-v5-footer__tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ai-v5-footer__tag {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 140, 0, 0.16);
    background: rgba(255, 140, 0, 0.06);
    color: var(--ai-v5-accent-strong);
    font-size: 0.84rem;
    font-weight: var(--ai-v5-weight-medium);
}

.ai-v5-footer__column {
    display: grid;
    align-content: start;
    gap: 14px;
}

.ai-v5-footer__heading {
    margin: 0;
    color: var(--ai-v5-text);
    font-family: var(--ai-v5-font-display);
    font-size: 1rem;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-footer__contact-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 12px;
    color: var(--ai-v5-text-soft);
}

.ai-v5-footer__contact-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.ai-v5-footer__contact-list a {
    color: inherit;
}

.ai-v5-footer__contact-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(255, 140, 0, 0.10);
    color: var(--ai-v5-accent-strong);
    flex-shrink: 0;
}

.ai-v5-footer__contact-btn {
    width: fit-content;
}

.ai-v5-footer__bottom {
    width: min(var(--ai-v5-page-width), 100%);
    margin: 28px auto 0;
    padding-top: 18px;
    border-top: 1px solid var(--ai-v5-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.ai-v5-footer__legal {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.ai-v5-footer__legal a {
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
}

.ai-v5-footer__legal a:hover {
    color: var(--ai-v5-accent-strong);
}

.ai-v5-footer__copy {
    margin: 0;
    color: var(--ai-v5-text-mute);
    font-size: 0.82rem;
}

@media (max-width: 1024px) {
    .ai-v5-header__inner {
        padding: 0 16px;
    }

    .ai-v5-search {
        width: min(220px, 34vw);
    }

    .ai-v5-footer__inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-v5-footer__brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 860px) {
    .ai-v5-header__inner {
        display: flex;
        align-items: flex-start;
        flex-direction: column;
    }

    .ai-v5-header__left,
    .ai-v5-header__actions {
        width: 100%;
        justify-content: space-between;
    }

    .ai-v5-nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .ai-v5-nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 0;
        right: 0;
        width: auto;
        display: none;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 16px;
        border: 1px solid var(--ai-v5-border);
        border-radius: 16px;
        background: #fff;
        box-shadow: var(--ai-v5-shadow-soft);
    }

    .ai-v5-nav.is-open {
        display: flex;
    }

    .ai-v5-nav-dropdown {
        width: 100%;
    }

    .ai-v5-nav-dropdown__toggle {
        width: 100%;
        justify-content: space-between;
    }

    .ai-v5-nav-dropdown__menu {
        position: static;
        min-width: 0;
        width: 100%;
        margin-top: 10px;
        box-shadow: none;
    }

    .ai-v5-search {
        width: 100%;
    }

    .ai-v5-footer__inner {
        grid-template-columns: 1fr;
    }

    .ai-v5-language {
        order: 2;
    }

    .ai-v5-footer__bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .ai-v5-header,
    .ai-v5-page,
    .ai-v5-footer {
        padding-left: 12px;
        padding-right: 12px;
    }

    .ai-v5-header__actions {
        flex-wrap: wrap;
        gap: 12px;
    }

    .ai-v5-footer__links {
        gap: 12px;
    }

    .ai-v5-language__menu {
        left: 0;
        right: auto;
    }
}

/* Source: ai-v5-components.css */
.ai-v5-card {
    border: 1px solid var(--ai-v5-border);
    border-radius: 16px;
    background: var(--ai-v5-surface);
    box-shadow: var(--ai-v5-shadow-soft);
}

.ai-v5-card--glass {
    position: relative;
    overflow: hidden;
}

.ai-v5-card--glass::before {
    content: none;
}

.ai-v5-card--glass > * {
    position: relative;
    z-index: 1;
}

.ai-v5-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 46px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: var(--ai-v5-weight-strong);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.ai-v5-btn:hover {
    transform: translateY(-1px);
}

.ai-v5-btn--accent {
    color: #fff;
    background: var(--ai-v5-accent);
    box-shadow: none;
}

.ai-v5-btn--ghost {
    border-color: var(--ai-v5-border);
    background: #fff;
    color: var(--ai-v5-text);
}

.ai-v5-btn--full {
    width: 100%;
}

.ai-v5-btn--sm {
    min-height: 40px;
    padding: 0 16px;
    font-size: 0.92rem;
}

.ai-v5-btn:disabled {
    opacity: 0.66;
    cursor: not-allowed;
    transform: none;
}

.ai-v5-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 0 12px;
    border-radius: 999px;
    background: rgba(255, 140, 0, 0.12);
    color: var(--ai-v5-accent-strong);
    font-size: 0.78rem;
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-badge--soft {
    background: rgba(255, 255, 255, 0.54);
    color: var(--ai-v5-text-soft);
}

.ai-v5-empty-card {
    display: grid;
    gap: 8px;
    padding: 18px 20px;
    border: 1px dashed #e6ddd3;
    border-radius: 12px;
    background: #fcfaf8;
}

.ai-v5-empty-card strong {
    font-size: 1rem;
}

.ai-v5-empty-card p {
    margin: 0;
    color: var(--ai-v5-text-soft);
    line-height: 1.7;
}

.ai-v5-empty-note {
    margin: 0;
    line-height: 1.7;
}

.ai-v5-empty-note--muted {
    color: rgba(122, 122, 122, 0.68);
    font-size: 0.84rem;
}

.ai-v5-section__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.ai-v5-section__head h2,
.ai-v5-section__head h3 {
    margin: 0;
    font-family: var(--ai-v5-font-display);
    font-size: clamp(1.22rem, 1.7vw, 1.52rem);
    letter-spacing: -0.03em;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-section__head p {
    margin: 8px 0 0;
    color: var(--ai-v5-text-soft);
    line-height: 1.7;
}

.ai-v5-icon-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    padding: 0 14px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 999px;
    background: #fff;
    color: var(--ai-v5-text);
    box-shadow: 0 6px 18px rgba(17, 24, 39, 0.04);
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.ai-v5-icon-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 140, 0, 0.26);
    background: rgba(255, 140, 0, 0.08);
    color: var(--ai-v5-accent-strong);
    box-shadow: 0 10px 22px rgba(255, 140, 0, 0.10);
}

.ai-v5-icon-btn.active {
    color: var(--ai-v5-accent-strong);
    background: rgba(255, 140, 0, 0.12);
}

.ai-v5-action-count:empty {
    display: none;
}

.ai-v5-action-count {
    font-size: 0.85rem;
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-toast-stack {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 90;
    display: grid;
    gap: 12px;
    width: min(360px, calc(100vw - 32px));
}

.ai-v5-toast-stack.is-centered {
    top: 50%;
    left: 50%;
    right: auto;
    transform: translate(-50%, -50%);
    width: min(420px, calc(100vw - 32px));
}

.ai-v5-toast-stack.is-centered .ai-v5-toast {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 14px;
    padding: 24px 26px;
    border-color: rgba(255, 140, 0, 0.18);
    background:
        radial-gradient(circle at top right, rgba(255, 169, 64, 0.2), transparent 40%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 237, 0.96));
    box-shadow: 0 24px 52px rgba(29, 20, 12, 0.12);
    backdrop-filter: blur(16px);
    text-align: center;
}

.ai-v5-toast-stack.is-centered .ai-v5-toast__icon {
    width: 42px;
    height: 42px;
    font-size: 1.05rem;
}

.ai-v5-toast-stack.is-centered .ai-v5-toast__body {
    font-size: 0.98rem;
    font-weight: var(--ai-v5-weight-strong);
    line-height: 1.6;
}

.ai-v5-toast-stack.is-centered .ai-v5-toast.is-success {
    border-color: rgba(255, 140, 0, 0.22);
}

.ai-v5-toast-stack.is-centered .ai-v5-toast.is-success .ai-v5-toast__icon {
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.18), rgba(255, 106, 0, 0.26));
    color: var(--ai-v5-accent-strong);
}

.ai-v5-toast {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: flex-start;
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.75);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: var(--ai-v5-shadow-soft);
    backdrop-filter: blur(22px);
}

.ai-v5-toast__icon {
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-toast__body {
    color: var(--ai-v5-text);
    font-size: 0.92rem;
    line-height: 1.55;
}

.ai-v5-toast__body a {
    color: var(--ai-v5-accent-strong);
    text-decoration: underline;
}

.ai-v5-toast.is-info .ai-v5-toast__icon {
    background: rgba(255, 140, 0, 0.12);
    color: var(--ai-v5-accent-strong);
}

.ai-v5-toast.is-success .ai-v5-toast__icon {
    background: rgba(34, 197, 94, 0.14);
    color: var(--ai-v5-success);
}

.ai-v5-toast.is-error .ai-v5-toast__icon {
    background: rgba(229, 95, 95, 0.14);
    color: var(--ai-v5-danger);
}

@media (max-width: 640px) {
    .ai-v5-toast-stack {
        top: 12px;
        right: 12px;
        left: 12px;
        width: auto;
    }

    .ai-v5-toast-stack.is-centered {
        top: 50%;
        left: 50%;
        right: auto;
        width: min(420px, calc(100vw - 24px));
    }

    .ai-v5-section__head {
        flex-direction: column;
    }
}

/* Source: ai-v5-detail.css */
.ai-v5-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    color: var(--ai-v5-text-soft);
    font-size: 0.92rem;
}

.ai-v5-breadcrumbs .material-symbols-outlined {
    font-size: 1rem;
    color: var(--ai-v5-text-mute);
}

.ai-v5-breadcrumbs__current {
    color: inherit;
    font-weight: var(--ai-v5-weight-regular);
}

.ai-v5-detail-grid {
    display: grid;
    grid-template-columns: minmax(290px, 360px) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.ai-v5-sidebar {
    display: grid;
    gap: 18px;
    align-self: start;
}

.ai-v5-main {
    display: grid;
    gap: 28px;
}

.ai-v5-tool-card,
.ai-v5-price-card,
.ai-v5-related-card,
.ai-v5-hero,
.ai-v5-traffic-card,
.ai-v5-story-card,
.ai-v5-comment-card,
.ai-v5-login-note,
.ai-v5-article-card {
    padding: 24px;
}

.ai-v5-tool-card__head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.ai-v5-tool-card__icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border-radius: 16px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.64);
}

.ai-v5-tool-card__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.ai-v5-tool-card__icon .material-symbols-outlined {
    font-size: 2.1rem;
    color: var(--ai-v5-accent-strong);
}

.ai-v5-tool-card__title-wrap h2 {
    margin: 0;
    font-family: var(--ai-v5-font-display);
    font-size: 1.8rem;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-tool-card__title-wrap p {
    margin: 8px 0 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
}

.ai-v5-side-section {
    display: grid;
    gap: 14px;
}

.ai-v5-side-section__title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: var(--ai-v5-weight-strong);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ai-v5-accent-strong);
}

.ai-v5-info-list,
.ai-v5-price-list {
    display: grid;
    gap: 10px;
}

.ai-v5-info-row,
.ai-v5-price-item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 10px;
    background: #fcfaf8;
}

.ai-v5-info-row span,
.ai-v5-price-item span {
    color: var(--ai-v5-text-soft);
    font-size: 0.9rem;
}

.ai-v5-info-row strong,
.ai-v5-price-item strong,
.ai-v5-price-item em {
    font-style: normal;
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-tool-card__actions {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.ai-v5-price-card__featured {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 16px;
    margin-bottom: 14px;
    border: 1px solid rgba(255, 140, 0, 0.18);
    border-radius: 10px;
    background: rgba(255, 140, 0, 0.05);
}

.ai-v5-price-card__featured strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
}

.ai-v5-price-card__featured span {
    color: var(--ai-v5-text-soft);
    font-size: 0.9rem;
}

.ai-v5-price-card__featured em {
    font-style: normal;
    font-family: var(--ai-v5-font-display);
    font-size: 1.5rem;
    font-weight: var(--ai-v5-weight-display);
    color: var(--ai-v5-accent-strong);
}

.ai-v5-price-card__empty {
    padding: 8px 0 2px;
    color: rgba(82, 64, 50, 0.32);
    font-family: var(--ai-v5-font-display);
    font-size: 1.6rem;
    line-height: 1;
    font-weight: var(--ai-v5-weight-medium);
}

.ai-v5-related-list {
    display: grid;
    gap: 12px;
}

.ai-v5-related-item {
    display: grid;
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 12px;
    background: #fff;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.ai-v5-related-item:hover {
    transform: translateY(-1px);
    background: #fcfaf8;
    border-color: rgba(255, 140, 0, 0.3);
    box-shadow: 0 12px 26px rgba(255, 140, 0, 0.10);
}

.ai-v5-related-item__thumb {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #f6f6f7;
    overflow: hidden;
}

.ai-v5-related-item__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.28s ease;
}

.ai-v5-related-item__body {
    display: grid;
    gap: 6px;
}

.ai-v5-related-item__body strong {
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.ai-v5-related-item__body small {
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
    line-height: 1.45;
}

.ai-v5-related-item__meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ai-v5-text-soft);
    font-size: 0.78rem;
    font-weight: var(--ai-v5-weight-medium);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.ai-v5-related-item__meta-icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: background 0.2s ease, box-shadow 0.2s ease;
}

.ai-v5-related-item__meta-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.ai-v5-related-item:hover .ai-v5-related-item__thumb img {
    transform: scale(1.03);
}

.ai-v5-related-item:hover .ai-v5-related-item__body strong {
    color: var(--ai-v5-accent-strong);
}

.ai-v5-related-item:hover .ai-v5-related-item__meta-icon {
    background: rgba(255, 140, 0, 0.10);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.ai-v5-hero__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
    margin-bottom: 18px;
}

.ai-v5-hero__content {
    flex: 1 1 auto;
    min-width: 0;
    max-width: none;
}

.ai-v5-hero__title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.ai-v5-eyebrow {
    margin: 0 0 8px;
    color: var(--ai-v5-accent-strong);
    font-size: 0.85rem;
    font-weight: var(--ai-v5-weight-strong);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.ai-v5-hero__title {
    margin: 0;
    flex: 1 1 auto;
    min-width: 0;
    font-family: var(--ai-v5-font-display);
    font-size: clamp(2.1rem, 4.2vw, 3.3rem);
    line-height: 1.02;
    letter-spacing: -0.05em;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-hero__summary {
    margin: 14px 0 0;
    width: 100%;
    max-width: 92ch;
    color: var(--ai-v5-text-soft);
    font-size: 0.98rem;
    line-height: 1.75;
    font-family: var(--ai-v5-font-reading);
}

.ai-v5-hero-preview {
    position: relative;
    width: 100%;
    display: block;
    margin: 0 0 22px;
    padding: 0;
    border: 0;
    overflow: hidden;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255, 250, 245, 0.98), rgba(255, 240, 226, 0.78));
    box-shadow: var(--ai-v5-shadow-soft);
    cursor: pointer;
    transition: transform 0.24s ease, box-shadow 0.24s ease, filter 0.24s ease;
}

.ai-v5-hero-preview img {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: block;
    object-fit: cover;
    transition: transform 0.28s ease;
}

.ai-v5-hero-preview:hover img {
    transform: scale(1.02);
}

.ai-v5-hero-preview:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 34px rgba(255, 140, 0, 0.10);
    filter: saturate(1.02);
}

.ai-v5-hero-preview__overlay {
    position: absolute;
    right: 18px;
    bottom: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(29, 20, 12, 0.7);
    color: #fff;
    font-size: 0.88rem;
    font-weight: var(--ai-v5-weight-strong);
    backdrop-filter: blur(10px);
}

.ai-v5-hero__tools,
.ai-v5-review-tools,
.ai-v5-share-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.ai-v5-hero__tools {
    flex: 0 0 auto;
    justify-content: flex-end;
}

.ai-v5-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 12px;
}

.ai-v5-metric {
    display: grid;
    gap: 8px;
    min-height: 72px;
    padding: 12px 14px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 20px;
    background: #fcfaf8;
}

.ai-v5-metric__main {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.ai-v5-metric__icon {
    width: auto;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--ai-v5-accent-strong);
    font-size: 1.22rem;
    flex-shrink: 0;
}

.ai-v5-metric:nth-child(4) .ai-v5-metric__icon {
    color: #ef4444;
}

.ai-v5-metric__label {
    color: var(--ai-v5-text-soft);
    font-size: 0.74rem;
    line-height: 1.15;
}

.ai-v5-metric__value {
    display: block;
    margin: 0;
    font-family: var(--ai-v5-font-display);
    font-size: clamp(0.88rem, 1vw, 0.98rem);
    line-height: 1.15;
    font-weight: var(--ai-v5-weight-display);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.ai-v5-share-row {
    margin-top: 18px;
}

.ai-v5-share-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--ai-v5-border);
    background: #fcfaf8;
    color: var(--ai-v5-text-soft);
    transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.ai-v5-share-link:hover {
    transform: translateY(-1px);
    color: var(--ai-v5-accent-strong);
    border-color: rgba(255, 140, 0, 0.24);
    background: rgba(255, 140, 0, 0.08);
}

.ai-v5-tabs {
    position: static;
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    padding: 0;
    border-bottom: 1px solid var(--ai-v5-border);
}

.ai-v5-tab {
    min-height: 0;
    padding: 0 0 16px;
    border: 0;
    border-bottom: 2px solid transparent;
    background: transparent;
    color: var(--ai-v5-text-soft);
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-tab.is-active {
    border-bottom-color: var(--ai-v5-accent);
    color: var(--ai-v5-accent-strong);
}

.ai-v5-section {
    display: grid;
    gap: 18px;
    scroll-margin-top: 150px;
}

.ai-v5-traffic-kpi-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.ai-v5-traffic-kpi {
    display: grid;
    gap: 10px;
    padding: 18px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 20px;
    background: linear-gradient(180deg, #ffffff 0%, #fffaf5 100%);
}

.ai-v5-traffic-kpi__label {
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
    font-weight: var(--ai-v5-weight-medium);
}

.ai-v5-traffic-kpi__value {
    display: block;
    font-family: var(--ai-v5-font-display);
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    line-height: 1.1;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-traffic-kpi__meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ai-v5-text-mute);
    font-size: 0.8rem;
}

.ai-v5-traffic-kpi__meta strong {
    color: var(--ai-v5-text);
    font-size: 0.9rem;
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-traffic-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.95fr);
    gap: 18px;
}

.ai-v5-traffic-layout__main,
.ai-v5-traffic-layout__side {
    display: grid;
    gap: 18px;
    align-content: start;
}

.ai-v5-traffic-panel {
    display: grid;
    gap: 16px;
    padding: 20px;
    border: 1px solid var(--ai-v5-border);
    border-radius: 20px;
    background: #fff;
}

.ai-v5-traffic-panel--keywords {
    margin-top: 18px;
}

.ai-v5-traffic-panel__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.ai-v5-traffic-panel__head h3 {
    margin: 0;
    font-family: var(--ai-v5-font-display);
    font-size: 1.06rem;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-traffic-panel__head p {
    margin: 6px 0 0;
    color: var(--ai-v5-text-soft);
    font-size: 0.9rem;
    line-height: 1.6;
}

.ai-v5-traffic-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 118px;
    padding: 18px 20px;
    border: 1px dashed #e8dfd6;
    border-radius: 16px;
    background: #fcfaf8;
    color: rgba(82, 64, 50, 0.32);
    font-family: var(--ai-v5-font-display);
    font-size: 1.6rem;
    line-height: 1;
    font-weight: var(--ai-v5-weight-medium);
}

.ai-v5-traffic-card__summary {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
}

.ai-v5-traffic-card__summary span {
    display: block;
    color: var(--ai-v5-text-soft);
    font-size: 0.86rem;
}

.ai-v5-traffic-card__summary strong {
    display: block;
    margin-top: 6px;
    font-family: var(--ai-v5-font-display);
    font-size: clamp(1.48rem, 3vw, 2.2rem);
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-chart {
    padding: 18px;
    border-radius: 16px;
    background: linear-gradient(180deg, #ffffff 0%, #fffaf5 100%);
}

.ai-v5-chart svg {
    width: 100%;
    height: 220px;
}

.ai-v5-chart__labels {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-top: 8px;
    color: var(--ai-v5-text-mute);
    font-size: 0.82rem;
}

.ai-v5-source-list {
    display: grid;
    gap: 12px;
}

.ai-v5-source-item__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.ai-v5-source-item__row span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ai-v5-text-soft);
}

.ai-v5-source-item__track {
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.54);
    overflow: hidden;
}

.ai-v5-source-item__fill {
    height: 100%;
    border-radius: inherit;
}

.ai-v5-engagement-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.ai-v5-engagement-item {
    display: grid;
    gap: 8px;
    padding: 16px;
    border-radius: 16px;
    background: #fcfaf8;
    border: 1px solid rgba(255, 140, 0, 0.08);
}

.ai-v5-engagement-item span {
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
}

.ai-v5-engagement-item strong {
    font-family: var(--ai-v5-font-display);
    font-size: 1.06rem;
    font-weight: var(--ai-v5-weight-display);
}

.ai-v5-country-list {
    display: grid;
    gap: 12px;
}

.ai-v5-country-item {
    display: grid;
    gap: 8px;
}

.ai-v5-country-item__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.ai-v5-country-item__name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ai-v5-text);
    font-size: 0.92rem;
    font-weight: var(--ai-v5-weight-medium);
}

.ai-v5-country-item__flag {
    font-size: 1rem;
}

.ai-v5-keyword-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}

.ai-v5-keyword-card {
    display: grid;
    gap: 10px;
    padding: 16px 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 140, 0, 0.12);
    background: linear-gradient(180deg, #fffaf5 0%, #ffffff 100%);
}

.ai-v5-keyword-card strong {
    font-size: 0.98rem;
}

.ai-v5-keyword-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--ai-v5-text-soft);
    font-size: 0.82rem;
}

.ai-v5-story-card__lead {
    margin: 0 0 16px;
    color: var(--ai-v5-text);
    font-size: 1.02rem;
    line-height: 1.85;
    font-family: var(--ai-v5-font-reading);
}

.ai-v5-story-card {
    border-left: 4px solid var(--ai-v5-accent);
    background: #fcfaf8;
}

.ai-v5-prose {
    color: var(--ai-v5-text-soft);
    line-height: 1.85;
    font-family: var(--ai-v5-font-reading);
}

.ai-v5-prose p:first-child {
    margin-top: 0;
}

.ai-v5-prose p:last-child {
    margin-bottom: 0;
}

.ai-v5-embed-card {
    margin-top: 18px;
    overflow: hidden;
    border-radius: 22px;
}

.ai-v5-feature-grid,
.ai-v5-article-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.ai-v5-gallery-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
}

.ai-v5-feature-card h3,
.ai-v5-article-card strong {
    margin: 0 0 10px;
    font-size: 1.05rem;
}

.ai-v5-feature-card {
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.ai-v5-feature-card p,
.ai-v5-article-card p {
    margin: 0;
    color: var(--ai-v5-text-soft);
    line-height: 1.75;
}

.ai-v5-feature-card__icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    border-radius: 16px;
    background: rgba(255, 140, 0, 0.12);
    color: var(--ai-v5-accent-strong);
    font-family: var(--ai-v5-font-display);
    font-weight: var(--ai-v5-weight-display);
    transition: background 0.22s ease, color 0.22s ease, transform 0.22s ease;
}

.ai-v5-feature-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 140, 0, 0.28);
    box-shadow: 0 16px 30px rgba(255, 140, 0, 0.10);
}

.ai-v5-feature-card:hover .ai-v5-feature-card__icon {
    transform: translateY(-1px);
}

.ai-v5-feature-card:nth-child(4n + 1) .ai-v5-feature-card__icon {
    background: rgba(255, 140, 0, 0.12);
    color: #ff8c00;
}

.ai-v5-feature-card:nth-child(4n + 2) .ai-v5-feature-card__icon {
    background: rgba(59, 130, 246, 0.12);
    color: #3b82f6;
}

.ai-v5-feature-card:nth-child(4n + 3) .ai-v5-feature-card__icon {
    background: rgba(168, 85, 247, 0.12);
    color: #a855f7;
}

.ai-v5-feature-card:nth-child(4n + 4) .ai-v5-feature-card__icon {
    background: rgba(236, 72, 153, 0.12);
    color: #ec4899;
}

.ai-v5-feature-card:nth-child(4n + 1):hover .ai-v5-feature-card__icon {
    background: #ff8c00;
    color: #fff;
}

.ai-v5-feature-card:nth-child(4n + 2):hover .ai-v5-feature-card__icon {
    background: #3b82f6;
    color: #fff;
}

.ai-v5-feature-card:nth-child(4n + 3):hover .ai-v5-feature-card__icon {
    background: #a855f7;
    color: #fff;
}

.ai-v5-feature-card:nth-child(4n + 4):hover .ai-v5-feature-card__icon {
    background: #ec4899;
    color: #fff;
}

.ai-v5-gallery-card {
    width: min(100%, 900px);
    margin: 0 auto;
    padding: 0;
    border: 1px solid var(--ai-v5-border);
    overflow: hidden;
    border-radius: 24px;
    background: #f7f8fa;
    box-shadow: var(--ai-v5-shadow-soft);
    transition: transform 0.24s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.ai-v5-gallery-card img {
    width: 100%;
    min-height: 320px;
    max-height: 560px;
    object-fit: contain;
    background: #f7f8fa;
    transition: transform 0.28s ease;
}

.ai-v5-gallery-card:hover img {
    transform: scale(1.03);
}

.ai-v5-gallery-card:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 140, 0, 0.24);
    box-shadow: 0 16px 34px rgba(255, 140, 0, 0.10);
}

.ai-v5-review-list {
    display: grid;
    gap: 16px;
    padding: 18px;
    border: 1px solid rgba(255, 140, 0, 0.12);
    border-radius: 24px;
    background: linear-gradient(180deg, #fffaf5 0%, #fffdfb 100%);
}

.ai-v5-review-list[hidden] {
    display: none !important;
}

.ai-v5-review-card {
    padding: 20px;
    border: 1px solid rgba(241, 216, 193, 0.95);
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 14px 34px rgba(232, 153, 68, 0.08);
}

.ai-v5-review-card--reply {
    margin-top: 12px;
    margin-left: 56px;
    background: #fff6ed;
    border-color: rgba(247, 205, 160, 0.95);
}

.ai-v5-review-card__head,
.ai-v5-comment-card__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.ai-v5-review-card__author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.ai-v5-review-card__avatar {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(255, 140, 0, 0.16);
    color: var(--ai-v5-accent-strong);
    font-weight: var(--ai-v5-weight-display);
    overflow: hidden;
}

.ai-v5-review-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ai-v5-review-card__meta {
    display: grid;
    gap: 4px;
}

.ai-v5-review-card__name {
    font-size: 0.96rem;
}

.ai-v5-review-card__date,
.ai-v5-review-card__type {
    color: var(--ai-v5-text-mute);
    font-size: 0.8rem;
}

.ai-v5-review-card__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-v5-review-card__reply {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 0;
    background: transparent;
    color: var(--ai-v5-accent-strong);
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-review-card__body {
    margin: 0;
    color: var(--ai-v5-text-soft);
    line-height: 1.8;
}

.ai-v5-comment-form,
.ai-v5-reply-form {
    display: grid;
    gap: 12px;
}

.ai-v5-comment-form--compact {
    gap: 10px;
}

.ai-v5-form-label {
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-form-textarea,
.ai-v5-reply-textarea {
    width: 100%;
    min-height: 120px;
    padding: 14px 16px;
    border: 1px solid rgba(246, 201, 154, 0.82);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--ai-v5-text);
    resize: vertical;
    outline: none;
}

.ai-v5-form-textarea:focus,
.ai-v5-reply-textarea:focus {
    border-color: rgba(255, 140, 0, 0.38);
    box-shadow: 0 0 0 4px rgba(255, 140, 0, 0.10);
}

.ai-v5-comment-form__actions,
.ai-v5-reply-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-v5-comment-form__actions span {
    padding: 7px 12px;
    border-radius: 999px;
    background: rgba(255, 140, 0, 0.08);
    color: var(--ai-v5-accent-strong);
    font-size: 0.88rem;
}

.ai-v5-comment-form__actions--compact {
    justify-content: flex-end;
}

.ai-v5-login-note {
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(241, 216, 193, 0.95);
    background: #fff7ef;
    color: var(--ai-v5-text-soft);
}

.ai-v5-login-note a {
    color: var(--ai-v5-accent-strong);
    font-weight: var(--ai-v5-weight-strong);
}

.ai-v5-article-card__meta {
    display: inline-flex;
    margin-bottom: 12px;
    color: var(--ai-v5-text-mute);
    font-size: 0.82rem;
}

.ai-v5-lightbox {
    position: fixed;
    inset: 0;
    z-index: 80;
    padding: 96px 24px 24px;
    overflow-y: auto;
}

.ai-v5-lightbox__backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    background: rgba(30, 18, 9, 0.66);
    backdrop-filter: blur(12px);
}

.ai-v5-lightbox__dialog {
    position: relative;
    width: min(980px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.36);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.76);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.24);
}

.ai-v5-lightbox__close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
}

.ai-v5-lightbox__dialog img {
    width: 100%;
    max-height: 78vh;
    object-fit: contain;
    border-radius: 20px;
}

.ai-v5-lightbox__caption {
    margin: 14px 0 0;
    color: var(--ai-v5-text-soft);
    text-align: center;
}

.ai-v5-section--reviews {
    gap: 20px;
}

.ai-v5-section--reviews .ai-v5-section__head {
    padding: 0 4px;
}

.ai-v5-section--reviews .ai-v5-comment-card {
    border: 1px solid rgba(247, 205, 160, 0.95);
    background: linear-gradient(180deg, #fff4e8 0%, #fffaf6 100%);
    box-shadow: 0 18px 42px rgba(232, 153, 68, 0.10);
}

.ai-v5-section--reviews .ai-v5-comment-card--compact {
    padding: 18px 20px;
}

.ai-v5-section--reviews .ai-v5-comment-card--compact .ai-v5-form-label {
    font-size: 0.92rem;
}

.ai-v5-section--reviews .ai-v5-comment-card--compact .ai-v5-form-textarea {
    min-height: 92px;
    padding: 12px 14px;
    border-radius: 18px;
}

.ai-v5-section--reviews .ai-v5-comment-card__head {
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 140, 0, 0.14);
}

@media (max-width: 1120px) {
    .ai-v5-detail-grid {
        grid-template-columns: 1fr;
    }

    .ai-v5-sidebar {
        order: 2;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .ai-v5-main {
        order: 1;
    }

    .ai-v5-tabs {
        top: 84px;
    }

    .ai-v5-traffic-kpi-grid,
    .ai-v5-traffic-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 920px) {
    .ai-v5-sidebar {
        grid-template-columns: 1fr;
    }

    .ai-v5-lightbox {
        padding: 84px 16px 16px;
    }

    .ai-v5-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .ai-v5-feature-grid,
    .ai-v5-article-grid {
        grid-template-columns: 1fr;
    }

    .ai-v5-hero__head,
    .ai-v5-traffic-panel__head,
    .ai-v5-traffic-card__summary,
    .ai-v5-review-card__head {
        flex-direction: column;
    }

    .ai-v5-engagement-grid {
        grid-template-columns: 1fr;
    }

    .ai-v5-hero__title-row {
        flex-direction: column;
        gap: 12px;
    }

    .ai-v5-hero__tools {
        width: 100%;
    }

    .ai-v5-hero-preview__overlay {
        right: 14px;
        bottom: 14px;
        padding: 8px 12px;
        font-size: 0.82rem;
    }
}

@media (max-width: 640px) {
    .ai-v5-tool-card,
    .ai-v5-price-card,
    .ai-v5-related-card,
    .ai-v5-hero,
    .ai-v5-traffic-card,
    .ai-v5-story-card,
    .ai-v5-comment-card,
    .ai-v5-login-note,
    .ai-v5-article-card {
        padding: 18px;
    }

    .ai-v5-tabs {
        position: static;
        border-radius: 24px;
    }

    .ai-v5-tab {
        width: 100%;
    }

    .ai-v5-metrics,
    .ai-v5-gallery-grid {
        grid-template-columns: 1fr;
    }

    .ai-v5-keyword-grid {
        grid-template-columns: 1fr;
    }

    .ai-v5-chart {
        padding: 14px;
    }

    .ai-v5-lightbox__dialog {
        width: calc(100vw - 20px);
        padding: 14px;
    }

    .ai-v5-hero-preview img,
    .ai-v5-related-item__thumb {
        aspect-ratio: 4 / 3;
    }

    .ai-v5-review-card--reply {
        margin-left: 0;
    }
}