/*
 * 文件：public/static/front/css/atelier.css
 * 作用：国际企业官网基础层：字体、页头、页脚、按钮、表单、内页与 AI 顾问面板。
 * 技术：CSS
 *
 * 威海颜翊网络科技有限公司
 * 项目：颜翊科技官网与全国城市站群
 * 开发负责人：@Renvir
 * 联系邮箱：pinenetcn@gmail.com
 * 版权：Copyright (c) 2026 威海颜翊网络科技有限公司
 * 说明：本项目代码为威海颜翊网络科技有限公司定制开发成果，未经书面许可不得复制、转售或用于未授权项目。
 */
@font-face {
    font-family: "Noto Serif SC";
    src: url("../fonts/noto-serif-sc-regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "Noto Serif SC";
    src: url("../fonts/noto-serif-sc-semibold.woff2") format("woff2");
    font-style: normal;
    font-weight: 600;
    font-display: swap;
}

@font-face {
    font-family: "Cormorant Garamond";
    src: url("../fonts/cormorant-9.woff2") format("woff2");
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
}

/* 所有前台控件与容器保持直角。 */
body * {
    border-radius: 0 !important;
}

body {
    background: var(--color-paper);
    color: var(--color-ink);
    font-family: var(--font-sans);
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-style: normal;
    font-weight: 400;
    letter-spacing: -0.025em;
}

::selection {
    background: var(--color-accent);
    color: #fff;
}

a,
button,
input,
select,
textarea {
    border-radius: 0;
}

/* 页头 ------------------------------------------------------------------- */
.site-head {
    position: sticky;
    top: 0;
    z-index: 70;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
    box-shadow: none;
}

.site-head.is-scrolled {
    background: color-mix(in oklab, var(--color-paper) 94%, transparent);
    backdrop-filter: blur(10px);
    border-bottom-color: var(--color-line);
    box-shadow: none;
}

.ed-header-inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: var(--header-h);
}

.ed-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex: none;
}

.ed-logo {
    width: 142px;
    height: auto;
}

.ed-logo-dark {
    display: none;
}

.ed-logo-light {
    display: block;
}

.ed-brand-city {
    padding-left: 12px;
    border-left: 1px solid currentColor;
    color: var(--color-accent);
    font-family: var(--font-serif);
    font-size: 13px;
    opacity: 0.75;
}

.ed-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.ed-nav a {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0;
    color: var(--color-ink-2);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.ed-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 9px;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur-base) var(--ease-out);
}

.ed-nav a:hover,
.ed-nav a.is-active {
    color: var(--color-ink);
}

.ed-nav a:hover::after,
.ed-nav a.is-active::after {
    transform: scaleX(1);
}

.ed-header-actions {
    display: flex;
    align-items: center;
    gap: 22px;
    flex: none;
}

.ed-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 44px;
    color: var(--color-ink);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--color-ink);
}

.ed-contact-link span {
    transition: transform var(--dur-fast) var(--ease-out);
}

.ed-contact-link:hover span {
    transform: translate(2px, -2px);
}

.ed-menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--color-line-strong);
    background: transparent;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.ed-menu-toggle span {
    display: block;
    width: 18px;
    height: 1px;
    background: currentColor;
}

/* 首页页头覆盖在影像上 */
body.page-home .site-head {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.22);
    color: var(--color-paper-on-dark);
}

body.page-home .site-head .ed-logo-dark {
    display: block;
}

body.page-home .site-head .ed-logo-light {
    display: none;
}

body.page-home .site-head .ed-nav a,
body.page-home .site-head .ed-contact-link {
    color: rgba(255, 255, 255, 0.82);
}

body.page-home .site-head .ed-nav a:hover,
body.page-home .site-head .ed-nav a.is-active,
body.page-home .site-head .ed-contact-link:hover {
    color: #fff;
}

body.page-home .site-head .ed-contact-link {
    border-bottom-color: rgba(255, 255, 255, 0.7);
}

body.page-home .site-head .ed-menu-toggle {
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff;
}

body.page-home .site-head.is-scrolled {
    position: fixed;
    background: color-mix(in oklab, var(--color-paper) 94%, transparent);
    border-bottom-color: var(--color-line);
    color: var(--color-ink);
}

body.page-home .site-head.is-scrolled .ed-logo-dark {
    display: none;
}

body.page-home .site-head.is-scrolled .ed-logo-light {
    display: block;
}

body.page-home .site-head.is-scrolled .ed-nav a,
body.page-home .site-head.is-scrolled .ed-contact-link {
    color: var(--color-ink-2);
}

body.page-home .site-head.is-scrolled .ed-nav a:hover,
body.page-home .site-head.is-scrolled .ed-nav a.is-active,
body.page-home .site-head.is-scrolled .ed-contact-link:hover {
    color: var(--color-ink);
}

body.page-home .site-head.is-scrolled .ed-contact-link {
    border-bottom-color: var(--color-ink);
}

body.page-home .site-head.is-scrolled .ed-menu-toggle {
    border-color: var(--color-line-strong);
    color: var(--color-ink);
}

/* 文字链接 --------------------------------------------------------------- */
.ed-link {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 42px;
    padding: 0 0 4px;
    border-bottom: 1px solid var(--color-ink);
    color: var(--color-ink);
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.04em;
}

.ed-link span:last-child {
    transition: transform var(--dur-fast) var(--ease-out);
}

.ed-link:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.ed-link:hover span:last-child {
    transform: translate(2px, -2px);
}

.ed-link-light:hover {
    color: #fff;
    border-bottom-color: #fff;
}

.ed-link-light {
    border-bottom-color: rgba(255, 255, 255, 0.55);
    color: #fff;
}

.ed-link-light:hover {
    border-bottom-color: #fff;
}

/* 区块与标题 ------------------------------------------------------------- */
.ed-section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    padding-bottom: 26px;
    border-bottom: 1px solid var(--color-line-strong);
    margin-bottom: 0;
}

.ed-section-head h2 {
    color: var(--color-ink);
    font-size: clamp(2.5rem, 4.2vw, 4.1rem);
    line-height: 1;
    font-weight: 400;
}

.ed-section-head p {
    max-width: 42ch;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.8;
}

.ed-section-head-row {
    align-items: center;
}

.ed-section-head-row .ed-link {
    min-height: 32px;
    border-bottom-color: var(--color-line-strong);
}

/* 按钮 ------------------------------------------------------------------- */
.btn {
    border-radius: 0;
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.03em;
}

.btn-ink,
.btn-primary {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-paper);
}

.btn-ink:hover,
.btn-primary:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #fff;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-line-strong);
    color: var(--color-ink);
}

.btn-outline:hover {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-paper);
}

.btn.is-loading::after {
    content: "";
    width: 13px;
    height: 13px;
    border: 1px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 700ms linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 表单：下划线输入框，直角按钮。 */
.field label {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
    min-height: 46px;
    padding: 10px 0;
    border: 0;
    border-bottom: 1px solid var(--color-line-strong);
    border-radius: 0;
    background: transparent;
    color: var(--color-ink);
    font-size: 14px;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
    border-color: var(--color-ink-2);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--color-ink);
    box-shadow: none;
}

.field textarea {
    min-height: 116px;
}

.consent {
    color: var(--color-muted);
}

.consent a {
    color: var(--color-ink);
}

.form-actions .btn {
    min-height: 48px;
    padding-inline: 24px;
}

.form-status {
    color: var(--color-muted);
}

/* 内页 ------------------------------------------------------------------- */
.page-hero {
    padding: clamp(64px, 8vw, 120px) 0 clamp(52px, 6vw, 84px);
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
}

.breadcrumb {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.04em;
}

.page-hero h1 {
    max-width: 19ch;
    margin: 22px 0 20px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.8rem, 5.2vw, 5.1rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.page-hero .page-lead {
    max-width: 50ch;
    color: var(--color-muted);
    font-size: 15px;
    line-height: 1.95;
}

.page-hero .page-aside {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.04em;
}

.section,
.contact-section {
    background: var(--color-paper);
    border-top: 1px solid var(--color-line);
}

.services-intro h2,
.about-story h2,
.contact-intro h2 {
    font-family: var(--font-serif);
    font-weight: 400;
    color: var(--color-ink);
    font-size: clamp(2.1rem, 3.6vw, 3.4rem);
    line-height: 1.16;
}

.services-intro-copy,
.about-prose {
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.95;
}

.service-detail {
    border-top: 1px solid var(--color-line);
}

.service-title h2 {
    font-family: var(--font-serif);
    font-weight: 400;
}

.service-list h3 {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.service-list li {
    border-top: 1px solid var(--color-line);
    color: var(--color-ink-2);
    font-size: 13px;
}

.service-list li::before {
    background: var(--color-ink);
}

.contact-form-wrap,
.contact-page-form {
    border: 1px solid var(--color-line);
    border-radius: 0;
    background: var(--color-surface);
    box-shadow: none;
}

.contact-page-form {
    padding: clamp(22px, 3vw, 36px);
}

.case-card,
.work-item,
.case-card-v2,
.case-image,
.case-cover,
.case-card .case-image {
    border-radius: 0;
}

.case-card .case-image,
.work-image,
.case-cover {
    border: 1px solid var(--color-line);
}

.faq-list summary::after,
.local-faq summary::after,
.local-city-faq summary::after {
    color: var(--color-ink);
}

.city-search input,
.city-search {
    background: var(--color-paper);
    border-radius: 0;
}

.city-list a:hover {
    color: var(--color-accent);
}

/* 页脚 ------------------------------------------------------------------- */
.ed-footer {
    background: var(--color-night);
    color: var(--color-paper-on-dark);
}

.ed-footer-top {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(200px, 0.7fr) minmax(0, 0.8fr);
    gap: clamp(32px, 6vw, 90px);
    padding-top: clamp(56px, 7vw, 88px);
    padding-bottom: clamp(48px, 6vw, 76px);
}

.ed-footer-brand img {
    width: 168px;
    height: auto;
    margin-bottom: 30px;
}

.ed-footer-motto {
    color: #fff;
    font-family: var(--font-serif);
    font-size: clamp(1.45rem, 2.2vw, 2rem);
    line-height: 1.5;
}

.ed-footer-line {
    margin-top: 8px;
    color: var(--color-muted-on-dark);
    font-size: 12px;
}

.ed-footer-label {
    margin-bottom: 14px;
    color: var(--color-muted-on-dark);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.12em;
}

.ed-footer-contact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.ed-footer-contact a,
.ed-footer-contact p {
    color: var(--color-muted-on-dark);
    font-size: 12px;
    line-height: 1.8;
}

.ed-footer-phone {
    color: #fff !important;
    font-family: var(--font-sans);
    font-size: 12px !important;
    font-weight: 500;
    line-height: 1.8 !important;
}

.ed-footer-contact a:hover {
    color: #fff;
}

.ed-footer-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.ed-footer-nav > div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.ed-footer-nav a {
    color: var(--color-muted-on-dark);
    font-size: 11px;
    line-height: 1.9;
}

.ed-footer-nav a:hover {
    color: #fff;
}

.ed-footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    padding-block: 18px;
    border-top: 1px solid var(--color-line-on-dark);
    color: var(--color-muted-on-dark);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.03em;
}

/* AI 顾问：直角面板，衬线标题。 */
.ed-float-actions {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 80;
    display: flex;
    align-items: stretch;
    gap: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}

.ed-float-actions.is-visible {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.ed-ai-dock {
    position: static;
    right: auto;
    bottom: auto;
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 0 12px;
    border: 1px solid var(--color-ink);
    border-radius: 0;
    background: var(--color-paper);
    color: var(--color-ink);
    font-size: 10px;
    letter-spacing: 0.03em;
    cursor: pointer;
}

.ed-ai-dock:hover {
    background: var(--color-ink);
    color: var(--color-paper);
}

.ai-dock-avatar {
    width: 24px;
    height: 24px;
    border-radius: 0;
    flex: none;
    border: 0;
    background: transparent;
}

.ed-back-top {
    width: 40px;
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-ink);
    background: var(--color-paper);
    color: var(--color-ink);
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.ed-back-top svg {
    width: 16px;
    height: 16px;
}

.ed-back-top:hover {
    background: var(--color-ink);
    color: var(--color-paper);
}

.ed-ai-panel {
    position: fixed;
    right: 22px;
    bottom: 84px;
    z-index: 90;
    display: flex;
    flex-direction: column;
    width: min(452px, calc(100vw - 24px));
    height: min(820px, calc(100dvh - 100px));
    max-height: min(820px, calc(100dvh - 100px));
    border: 1px solid var(--color-ink);
    border-radius: 0;
    background: var(--color-paper);
    box-shadow: var(--shadow-float);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), visibility var(--dur-base);
}

.ed-ai-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
}

.ai-panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    background: var(--color-night);
    color: var(--color-paper-on-dark);
}

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

.ai-avatar-frame {
    display: block;
    width: 50px;
    height: 50px;
    flex: none;
    overflow: visible;
    border: 0;
    background: transparent;
}

.ai-avatar-frame img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.ai-persona h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 3px 0 3px;
    color: #fff;
    font-family: var(--font-serif);
    font-size: 1.55rem;
    font-weight: 400;
    line-height: 1.1;
}

.ai-online {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 5px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.72);
    font-family: var(--font-mono);
    font-size: 7px;
    font-weight: 400;
    letter-spacing: 0.08em;
}

.ai-online::before {
    content: "";
    width: 4px;
    height: 4px;
    background: #a5c3a9;
}

.ai-persona > div > span {
    display: block;
    color: rgba(255, 255, 255, 0.48);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.03em;
}

.ai-kicker {
    color: rgba(255, 255, 255, 0.42);
    font-family: var(--font-mono);
    font-size: 7px;
    letter-spacing: 0.12em;
}

.ai-close {
    width: 34px;
    height: 34px;
    flex: none;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.28);
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.ai-close:hover {
    background: #fff;
    color: var(--color-ink);
}

.ai-close svg {
    width: 15px;
    height: 15px;
}

.ai-messages {
    flex: 1;
    min-height: 190px;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: var(--color-paper);
}

.ai-msg {
    max-width: 100%;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--color-ink-2);
    font-size: 13px;
    line-height: 1.85;
}

.ai-msg.is-assistant {
    position: relative;
    align-self: flex-start;
    max-width: 94%;
    padding: 26px 14px 12px;
    border: 1px solid rgba(8, 24, 38, 0.07);
    background: #E9EFF6;
}

.ai-msg.is-assistant::before {
    content: "小颜";
    position: absolute;
    top: 8px;
    left: 14px;
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 7px;
    letter-spacing: 0.1em;
}

html[lang="en"] .ai-msg.is-assistant::before {
    content: "XIAOYAN";
}

.ai-msg.is-user {
    align-self: flex-end;
    max-width: 84%;
    padding: 10px 12px;
    background: var(--color-ink);
    color: var(--color-paper);
    font-size: 12px;
    line-height: 1.75;
}

.ai-msg.is-pending {
    color: var(--color-muted-2);
}

.ai-msg p {
    margin: 0;
    white-space: pre-wrap;
}

.ai-suggestions {
    display: flex;
    flex-wrap: nowrap;
    gap: 7px;
    margin: 0 20px;
    padding: 12px 0;
    border-top: 1px solid var(--color-line);
    overflow-x: auto;
    scrollbar-width: none;
}

.ai-suggestions::-webkit-scrollbar {
    display: none;
}

.ai-suggestions[hidden] {
    display: none;
}

.ai-suggestions button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex: 0 0 auto;
    padding: 8px 9px;
    border: 1px solid var(--color-line-strong);
    background: transparent;
    color: var(--color-ink-2);
    font-family: var(--font-sans);
    font-size: 10px;
    line-height: 1.2;
    white-space: nowrap;
    cursor: pointer;
    transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.ai-suggestions button:hover {
    border-color: var(--color-ink);
    color: var(--color-ink);
}

.ai-suggestion-arrow {
    color: var(--color-muted-2);
    font-size: 12px;
    transition: transform var(--dur-fast) var(--ease-out);
}

.ai-suggestions button:hover .ai-suggestion-arrow {
    transform: translate(2px, -2px);
}

.ai-form {
    margin-top: auto;
    padding: 14px 20px 18px;
    border-top: 1px solid var(--color-line);
    background: var(--color-surface);
}

.ai-form textarea {
    width: 100%;
    min-height: 64px;
    padding: 6px 0;
    border: 0;
    border-bottom: 1px solid var(--color-line-strong);
    border-radius: 0;
    background: transparent;
    color: var(--color-ink);
    font-family: var(--font-sans);
    font-size: 12px;
    line-height: 1.7;
    resize: vertical;
}

.ai-form textarea::placeholder {
    color: var(--color-muted-2);
}

.ai-form textarea:focus {
    outline: none;
    border-color: var(--color-ink);
}

.ai-form-foot {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 14px;
    margin-top: 10px;
}

.ai-note {
    max-width: 25ch;
    color: var(--color-muted-2);
    font-size: 8px;
    line-height: 1.6;
}

.ai-send {
    width: auto;
    height: 40px;
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 0 13px;
    border: 1px solid var(--color-ink);
    border-radius: 0;
    background: var(--color-ink);
    color: var(--color-paper);
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background var(--dur-fast) var(--ease-out);
}

.ai-send:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.ai-send svg {
    width: 14px;
    height: 14px;
}

.ai-status {
    min-height: 13px;
    margin: 5px 0 0;
    color: var(--color-danger);
    font-size: 9px;
    line-height: 1.5;
}

.ai-security {
    margin: 0 20px 16px;
    padding: 16px;
    border: 1px solid var(--color-ink);
    background: var(--color-paper-2);
}

.ai-security-label {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 7px;
    letter-spacing: 0.1em;
}

.ai-security h3 {
    margin: 9px 0 7px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 400;
    line-height: 1.25;
}

.ai-security > p:not(.ai-security-label):not(.ai-security-status) {
    color: var(--color-muted);
    font-size: 11px;
    line-height: 1.8;
}

.ai-security-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 13px;
    border: 1px solid var(--color-ink);
    background: var(--color-ink);
    color: var(--color-paper);
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: 0.03em;
    cursor: pointer;
}

.ai-security-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.ai-security-status {
    min-height: 13px;
    margin: 8px 0 0;
    color: var(--color-danger);
    font-size: 9px;
    line-height: 1.5;
}

.ed-ai-panel.is-locked .ai-form,
.ed-ai-panel.is-locked .ai-suggestions {
    display: none;
}

.ai-scrim {
    position: fixed;
    inset: 0;
    z-index: 85;
    background: oklch(5% 0.005 80 / 0.42);
}

/* 响应式基础 ------------------------------------------------------------- */
@media (max-width: 1120px) {
    .ed-nav {
        gap: 20px;
    }
    .ed-contact-link {
        display: none;
    }
    .ed-footer-top {
        grid-template-columns: minmax(0, 1.2fr) minmax(200px, 0.8fr);
    }
    .ed-footer-nav {
        grid-column: 1 / -1;
        grid-template-columns: repeat(2, minmax(0, 160px));
    }
}

@media (max-width: 980px) {
    .ed-header-inner {
        height: 70px;
    }
    .ed-nav,
    .ed-contact-link {
        display: none;
    }
    .ed-menu-toggle {
        display: inline-flex;
    }
    .ed-header-actions {
        margin-left: auto;
    }
    .page-hero h1 {
        font-size: clamp(2.4rem, 8vw, 3.6rem);
    }
    .ed-footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .ed-footer-nav {
        grid-column: auto;
    }
}

@media (max-width: 760px) {
    .ed-logo {
        width: 124px;
    }
    .ed-footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        gap: 7px;
    }
    .ed-ai-panel {
        inset: 0;
        width: 100%;
        height: 100%;
        max-height: none;
        border: 0;
    }
    .ed-float-actions {
        right: 12px;
        bottom: 12px;
    }
    .ai-panel-head {
        padding-top: max(14px, env(safe-area-inset-top));
    }
    .ai-form {
        padding-bottom: max(14px, env(safe-area-inset-bottom));
    }
    .ed-section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 内页遗留的小标签统一为中性色，避免与极简版式产生额外交点。 */
.index-label {
    color: var(--color-accent) !important;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.06em;
}


/* 控制台彩蛋：yanyi.seal() 点亮品牌标识，仅前台、短暂、无布局影响。 */
.ed-logo.is-egg {
    animation: ed-egg-seal 1.8s var(--ease-out) both;
}

@keyframes ed-egg-seal {
    0% { transform: scale(1); filter: none; }
    22% { transform: scale(1.06) rotate(-1deg); filter: drop-shadow(0 0 10px rgba(255, 143, 163, 0.55)); }
    52% { transform: scale(1.02) rotate(0.6deg); filter: drop-shadow(0 0 18px rgba(124, 199, 217, 0.55)); }
    100% { transform: scale(1); filter: none; }
}


/* 抖音企业号：保留平台原始品牌色，只用版式与细线框承接，不重绘二维码。 */
.ed-douyin {
    padding-block: clamp(64px, 8vw, 110px);
    border-top: 1px solid var(--color-line);
    background: var(--color-paper-2);
}

.ed-douyin-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
    gap: clamp(36px, 7vw, 100px);
    align-items: center;
}

.ed-douyin h2 {
    margin: 18px 0 18px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.2rem, 3.8vw, 3.5rem);
    font-weight: 400;
    line-height: 1.2;
}

.ed-douyin p:not(.index-label) {
    max-width: 44ch;
    margin-bottom: 22px;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.9;
}

.ed-douyin figure {
    margin: 0;
    justify-self: end;
    width: 100%;
    max-width: 300px;
}

.ed-douyin figure img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--color-line-strong);
    background: #fff;
}

.ed-douyin figcaption {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 12px;
    margin-top: 10px;
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 8px;
    line-height: 1.7;
}

.ed-douyin figcaption span {
    color: var(--color-ink);
}

@media (max-width: 760px) {
    .ed-douyin-grid {
        grid-template-columns: 1fr;
    }
    .ed-douyin figure {
        justify-self: start;
        max-width: 240px;
    }
}


.ed-footer-douyin {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    color: var(--color-muted-on-dark) !important;
    font-family: var(--font-mono);
    font-size: 9px !important;
    letter-spacing: 0.03em;
}

.ed-footer-douyin:hover {
    color: #fff !important;
}


/* 小字排版：中文标签改用无衬线，避免等宽字体在中文界面里显得生硬；内页引导行改为有结构的横线行。 */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 7px;
    color: var(--color-muted);
    font-family: var(--font-sans);
    font-size: 11px;
    letter-spacing: 0.02em;
}

.breadcrumb a {
    color: var(--color-muted);
    text-decoration: none;
}

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

.breadcrumb span {
    color: var(--color-line-strong);
    font-size: 10px;
}

.page-hero .page-aside {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    margin-top: 28px;
    padding-top: 14px;
    border-top: 1px solid var(--color-line);
    color: var(--color-muted);
    font-family: var(--font-sans);
    font-size: 11.5px;
    line-height: 1.7;
    letter-spacing: 0.01em;
}

.page-hero .page-aside span {
    white-space: nowrap;
}

.page-hero .page-aside span:nth-child(2) {
    color: var(--color-line-strong);
}

.index-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent) !important;
    font-family: var(--font-sans) !important;
    font-size: 10.5px !important;
    font-weight: 500;
    letter-spacing: 0.06em !important;
    line-height: 1.5;
    text-transform: none;
}

.index-label::before {
    content: "";
    display: inline-block;
    width: 18px;
    height: 1px;
    background: currentColor;
}

.section-note,
.contact-note {
    font-family: var(--font-sans);
    font-size: 12px;
    line-height: 1.8;
    color: var(--color-muted);
}

.field label {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: none;
    color: var(--color-muted);
}

.field label span {
    font-size: 10.5px;
    color: var(--color-muted-2);
}

.consent {
    font-size: 11.5px;
    line-height: 1.75;
}

.contact-card dt {
    font-family: var(--font-sans);
    font-size: 10.5px;
    letter-spacing: 0.04em;
    color: var(--color-muted);
    margin-bottom: 4px;
}

.contact-card dd {
    font-size: 13px;
    color: var(--color-ink-2);
}

.ed-intro-facts dt {
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: 0.03em;
    color: var(--color-muted-2);
}

.ed-case-meta,
.ed-case-figure figcaption,
.ed-case-copy dt {
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: 0.02em;
    color: var(--color-muted-2);
}

.ed-case-figure figcaption span,
.ed-case-copy dd {
    color: var(--color-ink-2);
}

.ed-douyin figcaption {
    font-family: var(--font-sans);
    font-size: 10px;
    letter-spacing: 0;
    gap: 4px 10px;
}

.ai-note {
    font-size: 9px;
    line-height: 1.55;
}

.ai-persona > div > span {
    font-family: var(--font-sans);
    font-size: 9.5px;
    letter-spacing: 0.02em;
}

.ai-msg.is-assistant::before {
    font-family: var(--font-sans);
    font-size: 8.5px;
    letter-spacing: 0.04em;
}


/* 翊象 UI 加载引擎：顶部 2px 进度线 + 直角按钮加载态，不使用全屏遮罩。 */
.btn.is-loading::after {
    width: 14px;
    height: 1px;
    border: 0;
    border-radius: 0;
    background: currentColor;
    animation: ed-button-loading 700ms ease-in-out infinite;
}

@keyframes ed-button-loading {
    0%, 100% { transform: scaleX(0.35); opacity: 0.55; }
    50% { transform: scaleX(1); opacity: 1; }
}


/* --------------------------------------------------------------------------
   内页统一修正：让旧模板的网格、深色块与小标签服从当前版式。
   -------------------------------------------------------------------------- */

/* 关于页：品牌标识不再压过正文，正文与标题视觉对齐。 */
.about-story {
    align-items: start;
    padding-block: clamp(56px, 7vw, 92px);
}

.about-logo {
    width: min(100%, 220px);
    margin-bottom: 26px;
}

.about-story h2 {
    font-size: clamp(2.2rem, 3.4vw, 3.1rem);
    line-height: 1.24;
}

.about-prose {
    padding-top: 64px;
    font-size: 14px;
    line-height: 1.95;
}

.about-prose p + p {
    margin-top: 16px;
}

/* 关于页的城市与协作：旧 .section 背景覆盖了深色主题，这里显式恢复。 */
.city-network.section {
    background: var(--color-night);
    border-top: 0;
    color: var(--color-paper-on-dark);
}

.city-network .index-label {
    color: #AFC6FF !important;
}

.city-network h2 {
    color: #fff;
}

.city-network-copy > p {
    color: var(--color-muted-on-dark);
}

.city-links {
    border-bottom-color: var(--color-line-on-dark);
}

.city-links a {
    border-top-color: var(--color-line-on-dark);
    color: #fff;
}

.city-links a small {
    color: var(--color-muted-on-dark);
}

.city-links a:hover {
    color: var(--color-accent-soft);
}

/* 服务详情里的中文小标题不要用等宽字体。 */
.service-list h3 {
    font-family: var(--font-sans);
    font-size: 10.5px;
    letter-spacing: 0.03em;
}

/* 洞察索引：单列编辑目录，取代高度不齐的双列卡片。 */
.insight-index {
    padding-block: 0 clamp(68px, 8vw, 110px);
    background: var(--color-paper);
}

.ed-insight-list {
    border-bottom: 1px solid var(--color-line-strong);
}

.ed-insight-row {
    display: grid;
    grid-template-columns: 138px minmax(0, 1fr) 92px;
    gap: clamp(20px, 3.6vw, 52px);
    align-items: start;
    padding: 30px 0;
    border-top: 1px solid var(--color-line);
    transition: background var(--dur-fast) var(--ease-out), padding var(--dur-fast) var(--ease-out);
}

.ed-insight-row:first-child {
    border-top: 0;
}

.ed-insight-row:hover {
    background: var(--color-paper-2);
    padding-left: 16px;
    padding-right: 16px;
}

.ed-insight-meta {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding-top: 7px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 10.5px;
    line-height: 1.5;
}

.ed-insight-meta span {
    color: var(--color-accent);
}

.ed-insight-meta time {
    color: var(--color-muted-2);
}

.ed-insight-copy h2 {
    margin: 0 0 9px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(1.55rem, 2.6vw, 2.15rem);
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.025em;
}

.ed-insight-copy p {
    max-width: 62ch;
    margin: 0;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.85;
}

.ed-insight-row:hover .ed-insight-copy h2 {
    color: var(--color-accent);
}

.ed-insight-read {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    align-self: start;
    padding: 9px 11px;
    border: 1px solid var(--color-line-strong);
    color: var(--color-ink-2);
    font-family: var(--font-sans);
    font-size: 10.5px;
    line-height: 1.2;
    white-space: nowrap;
    transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.ed-insight-read:hover {
    background: var(--color-ink);
    border-color: var(--color-ink);
    color: var(--color-paper);
}

@media (max-width: 760px) {
    .about-prose {
        padding-top: 0;
    }
    .ed-insight-row {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 10px 16px;
        padding: 22px 0;
    }
    .ed-insight-row:hover {
        padding-left: 0;
        padding-right: 0;
    }
    .ed-insight-meta {
        flex-direction: row;
        gap: 14px;
        padding-top: 0;
    }
    .ed-insight-copy {
        grid-column: 1;
    }
    .ed-insight-copy h2 {
        font-size: clamp(1.35rem, 6vw, 1.7rem);
    }
    .ed-insight-copy p {
        font-size: 12px;
    }
    .ed-insight-read {
        grid-column: 2;
        grid-row: 1 / 3;
        align-self: start;
    }
}


/* PJAX：只替换 #main，页头页脚与 AI 面板保持不动；切换期间轻微降透明度。 */
#main {
    transition: opacity var(--dur-base) var(--ease-out);
}

html.is-pjaxing #main {
    opacity: 0.38;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    #main {
        transition: none;
    }
}


/* --------------------------------------------------------------------------
   重构后的内页：关于、服务、项目、文章，与首页共用同一套编辑式版式。
   -------------------------------------------------------------------------- */
.ed-about {
    padding-block: clamp(64px, 8vw, 110px);
    background: var(--color-paper);
}

.ed-about-grid {
    display: grid;
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: clamp(40px, 8vw, 130px);
    align-items: start;
}

.ed-about-logo {
    display: block;
    width: min(100%, 210px);
    height: auto;
    margin: 22px 0 30px;
}

.ed-about-note {
    padding-top: 16px;
    border-top: 1px solid var(--color-line);
    color: var(--color-muted);
    font-family: var(--font-sans);
    font-size: 11px;
    line-height: 1.8;
}

.ed-about-copy h2 {
    max-width: 15ch;
    margin-bottom: 30px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 4vw, 3.8rem);
    font-weight: 400;
    line-height: 1.22;
    letter-spacing: -0.035em;
}

.ed-about-copy p {
    max-width: 62ch;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.95;
}

.ed-about-copy p + p {
    margin-top: 16px;
}

.ed-about-copy strong {
    color: var(--color-ink);
    font-weight: 500;
}

.ed-about-copy .ed-about-quote {
    margin-top: 30px;
    padding-top: 18px;
    border-top: 1px solid var(--color-line);
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.18rem;
    line-height: 1.7;
}

.ed-principles-section {
    padding-block: clamp(62px, 8vw, 100px);
    background: var(--color-paper-2);
    border-top: 1px solid var(--color-line);
}

.ed-principles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 40px;
    border-bottom: 1px solid var(--color-line-strong);
}

.ed-principle {
    padding: 24px 0;
    border-top: 1px solid var(--color-line);
}

.ed-principle span {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.04em;
}

.ed-principle h3 {
    margin: 10px 0 6px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
}

.ed-principle p {
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.8;
}

.ed-facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 42px;
    border-top: 1px solid var(--color-line-strong);
}

.ed-facts > div {
    padding: 18px 24px 18px 0;
    border-right: 1px solid var(--color-line);
}

.ed-facts > div:not(:first-child) {
    padding-left: 24px;
}

.ed-facts > div:last-child {
    border-right: 0;
}

.ed-facts dt {
    margin-bottom: 4px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 10px;
}

.ed-facts dd {
    margin: 0;
    color: var(--color-ink-2);
    font-size: 12px;
    line-height: 1.6;
}

.ed-about-cities {
    background: var(--color-paper-2);
}

/* 服务 */
.ed-services-intro {
    padding-block: clamp(68px, 9vw, 112px);
    background: var(--color-paper);
}

.ed-services-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(40px, 8vw, 120px);
    align-items: start;
}

.ed-services-intro h2 {
    max-width: 14ch;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 4vw, 3.8rem);
    font-weight: 400;
    line-height: 1.22;
    letter-spacing: -0.035em;
}

.ed-services-intro-grid > div p {
    max-width: 52ch;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.95;
}

.ed-services-intro-grid > div p + p {
    margin-top: 16px;
}

.ed-service-details {
    padding-bottom: clamp(60px, 8vw, 100px);
    background: var(--color-paper);
}

.ed-service-detail {
    display: grid;
    grid-template-columns: minmax(180px, 300px) minmax(0, 1fr);
    gap: clamp(30px, 6vw, 90px);
    padding: 42px 0;
    border-top: 1px solid var(--color-line-strong);
}

.ed-service-detail:last-child {
    border-bottom: 1px solid var(--color-line-strong);
}

.ed-service-detail-head > span {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 9px;
}

.ed-service-detail-head h2 {
    margin: 8px 0 3px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.2vw, 2.8rem);
    font-weight: 400;
    line-height: 1.2;
}

.ed-service-detail-head small {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.ed-service-detail-head p {
    max-width: 30ch;
    margin-top: 16px;
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.8;
}

.ed-service-lead {
    max-width: 55ch;
    margin-bottom: 24px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.3rem;
    line-height: 1.65;
}

.ed-service-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--color-line);
}

.ed-service-columns h3 {
    margin-bottom: 4px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.04em;
}

.ed-service-columns li {
    padding: 8px 0;
    border-top: 1px solid var(--color-line);
    color: var(--color-ink-2);
    font-size: 12px;
    line-height: 1.6;
}

.ed-service-columns li:first-of-type {
    border-top: 0;
}

.ed-service-details + .ed-process {
    border-top: 1px solid var(--color-line);
    background: var(--color-paper-2);
}

/* 项目详情 */
.ed-case-detail-hero {
    padding-block: clamp(68px, 9vw, 120px) clamp(42px, 6vw, 70px);
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
}

.ed-case-detail-hero h1 {
    max-width: 17ch;
    margin: 20px 0 20px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.6rem, 5vw, 4.6rem);
    font-weight: 400;
    line-height: 1.16;
    letter-spacing: -0.04em;
}

.ed-case-detail-facts {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 44px;
    margin-top: 30px;
    padding-top: 16px;
    border-top: 1px solid var(--color-line);
}

.ed-case-detail-facts dt {
    margin-bottom: 4px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 10px;
}

.ed-case-detail-facts dd {
    margin: 0;
    color: var(--color-ink-2);
    font-size: 12px;
}

.ed-case-detail-cover {
    margin: 0;
    padding-block: clamp(32px, 5vw, 64px);
    background: var(--color-paper-2);
}

.ed-case-detail-cover img {
    display: block;
    width: min(1280px, calc(100% - 48px));
    height: auto;
    margin: 0 auto;
    border: 1px solid var(--color-line);
}

.ed-case-story {
    padding-block: clamp(60px, 8vw, 100px);
    background: var(--color-paper);
}

.ed-case-story-grid {
    display: grid;
    grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
    gap: clamp(36px, 7vw, 100px);
    align-items: start;
}

.ed-case-story-grid > aside p:not(.index-label) {
    margin: 0 0 24px;
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.85;
}

.ed-case-story-copy h2 {
    margin: 34px 0 10px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 1.3;
}

.ed-case-story-copy h2:first-child {
    margin-top: 0;
}

.ed-case-story-copy p {
    max-width: 64ch;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.95;
}

.ed-case-scope {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 24px;
    border-bottom: 1px solid var(--color-line);
}

.ed-case-scope li {
    padding: 9px 0;
    border-top: 1px solid var(--color-line);
    color: var(--color-ink-2);
    font-size: 12px;
    line-height: 1.6;
}

/* 文章详情 */
.ed-article-head {
    padding-block: clamp(68px, 9vw, 116px) clamp(44px, 6vw, 70px);
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-line);
}

.ed-article-head h1 {
    max-width: 20ch;
    margin: 20px 0 20px;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: clamp(2.6rem, 4.8vw, 4.5rem);
    font-weight: 400;
    line-height: 1.16;
    letter-spacing: -0.04em;
}

.ed-article-body {
    padding-block: clamp(56px, 8vw, 96px);
    background: var(--color-paper);
}

.ed-article-grid {
    display: grid;
    grid-template-columns: minmax(160px, 220px) minmax(0, 760px);
    gap: clamp(40px, 8vw, 100px);
    justify-content: center;
    align-items: start;
}

.ed-article-aside {
    position: sticky;
    top: 116px;
}

.ed-article-aside p:not(.index-label) {
    margin: 0 0 24px;
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.85;
}

.ed-prose p {
    max-width: 68ch;
    margin-bottom: 20px;
    color: var(--color-ink-2);
    font-size: 16px;
    line-height: 2;
}

.ed-prose p:first-child {
    color: var(--color-ink);
    font-size: 17px;
}

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

@media (max-width: 980px) {
    .ed-about-grid,
    .ed-services-intro-grid,
    .ed-service-detail,
    .ed-case-story-grid,
    .ed-article-grid {
        grid-template-columns: 1fr;
    }
    .ed-about-logo {
        width: 170px;
    }
    .ed-article-aside {
        position: static;
        order: 2;
    }
    .ed-prose {
        order: 1;
    }
    .ed-service-columns {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .ed-about,
    .ed-principles-section,
    .ed-services-intro,
    .ed-service-details,
    .ed-case-detail-hero,
    .ed-case-story,
    .ed-article-head,
    .ed-article-body {
        padding-block: 56px;
    }
    .ed-about-copy h2,
    .ed-services-intro h2 {
        font-size: clamp(2.1rem, 8vw, 2.8rem);
    }
    .ed-principles,
    .ed-facts {
        grid-template-columns: 1fr;
    }
    .ed-facts > div {
        padding: 14px 0;
        border-right: 0;
        border-bottom: 1px solid var(--color-line);
    }
    .ed-facts > div:not(:first-child) {
        padding-left: 0;
    }
    .ed-service-detail {
        padding: 28px 0;
    }
    .ed-service-detail-head p {
        max-width: 42ch;
    }
    .ed-case-detail-hero h1,
    .ed-article-head h1 {
        font-size: clamp(2.15rem, 8vw, 3rem);
    }
    .ed-case-detail-facts {
        gap: 12px 26px;
    }
    .ed-case-scope {
        grid-template-columns: 1fr;
    }
    .ed-case-detail-cover img {
        width: calc(100% - 24px);
    }
    .ed-prose p {
        font-size: 15px;
        line-height: 1.95;
    }
    .ed-prose p:first-child {
        font-size: 16px;
    }
}


/* 全国城市索引：搜索、常用城市、按省份目录。 */
.cities-page {
    padding-block: 0 clamp(70px, 8vw, 110px);
    background: var(--color-paper);
}

.city-search {
    display: grid;
    grid-template-columns: minmax(0, 520px) auto;
    align-items: end;
    gap: 6px 24px;
    padding: 28px 0 20px;
    border-bottom: 1px solid var(--color-line-strong);
}

.city-search label {
    grid-column: 1 / -1;
    color: var(--color-muted);
    font-family: var(--font-sans);
    font-size: 10.5px;
    letter-spacing: 0.04em;
}

.city-search input {
    width: 100%;
    height: 48px;
    padding: 4px 0;
    border: 0;
    border-bottom: 1px solid var(--color-line-strong);
    border-radius: 0;
    background: transparent;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.35rem;
    outline: none;
}

.city-search input:focus {
    border-color: var(--color-ink);
}

.city-search input::placeholder {
    color: var(--color-muted-2);
    font-size: 1rem;
}

.city-search-count {
    padding-bottom: 10px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 10px;
    white-space: nowrap;
}

.ed-city-featured {
    padding: 34px 0 26px;
    border-bottom: 1px solid var(--color-line);
}

.ed-city-featured-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px;
}

.ed-city-featured-head > span {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.06em;
}

.ed-city-featured-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--color-line-strong);
    margin-top: 12px;
}

.ed-city-featured-grid a {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px 14px 0;
    border-bottom: 1px solid var(--color-line);
    transition: color var(--dur-fast) var(--ease-out);
}

.ed-city-featured-grid a:nth-child(4n + 2),
.ed-city-featured-grid a:nth-child(4n + 3),
.ed-city-featured-grid a:nth-child(4n + 4) {
    padding-left: 18px;
}

.ed-city-featured-grid a:hover {
    color: var(--color-accent);
}

.ed-city-featured-grid span {
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.45rem;
    line-height: 1.2;
}

.ed-city-featured-grid small {
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.04em;
}

.city-directory {
    padding-top: 40px;
}

.city-directory > .ed-section-head {
    margin-bottom: 0;
}

.city-groups {
    border-bottom: 1px solid var(--color-line-strong);
}

.city-group {
    display: grid;
    grid-template-columns: minmax(130px, 180px) minmax(0, 1fr);
    gap: 30px;
    padding: 20px 0;
    border-top: 1px solid var(--color-line);
}

.city-group h2 {
    margin: 2px 0 0;
    color: var(--color-ink);
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 400;
    line-height: 1.4;
}

.city-group h2 span {
    margin-left: 6px;
    color: var(--color-muted-2);
    font-family: var(--font-mono);
    font-size: 8px;
}

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

.city-list li {
    padding: 6px 0;
    border-bottom: 1px solid var(--color-line);
    color: var(--color-ink-2);
    font-size: 12px;
    line-height: 1.6;
}

.city-list a {
    color: var(--color-ink-2);
}

.city-list a:hover {
    color: var(--color-accent);
}

.city-list .is-home a {
    color: var(--color-accent);
    font-weight: 500;
}

.city-list .is-home small {
    margin-left: 6px;
    color: var(--color-muted-2);
    font-family: var(--font-sans);
    font-size: 9px;
    font-weight: 400;
}

.city-empty {
    display: none;
    padding: 26px 0;
    color: var(--color-muted);
    font-size: 12px;
}

.city-empty.is-visible {
    display: block;
}

@media (max-width: 980px) {
    .ed-city-featured-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .ed-city-featured-grid a:nth-child(4n + 2),
    .ed-city-featured-grid a:nth-child(4n + 3),
    .ed-city-featured-grid a:nth-child(4n + 4) {
        padding-left: 0;
    }
    .ed-city-featured-grid a:nth-child(even) {
        padding-left: 18px;
    }
    .city-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 760px) {
    .city-search {
        grid-template-columns: minmax(0, 1fr) auto;
    }
    .city-group {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 16px 0;
    }
    .city-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0 18px;
    }
    .city-search input {
        font-size: 1.15rem;
    }
}


/* 语言切换：极简文字开关，不参与 PJAX，确保 html lang 与 Cookie 正确切换。 */
.ed-lang-switch {
    color: var(--color-muted);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.ed-lang-switch:hover {
    color: var(--color-ink);
    border-bottom-color: var(--color-ink);
}

body.page-home .site-head .ed-lang-switch {
    color: rgba(255, 255, 255, 0.66);
}

body.page-home .site-head .ed-lang-switch:hover {
    color: #fff;
    border-bottom-color: #fff;
}

body.page-home .site-head.is-scrolled .ed-lang-switch {
    color: var(--color-muted);
}

body.page-home .site-head.is-scrolled .ed-lang-switch:hover {
    color: var(--color-ink);
    border-bottom-color: var(--color-ink);
}

.mobile-lang {
    margin-top: 10px;
    color: var(--color-accent-soft) !important;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
}


/* AI 面板底部说明保持一行，避免在输入区上方折行。 */
.ai-form .ai-note,
.ai-note {
    max-width: none;
    white-space: nowrap;
}


.ed-article-sources { margin-top: 45px; padding-top: 22px; border-top: 1px solid var(--color-line); }
.ed-article-sources h2 { margin: 0 0 12px; font-family: var(--font-sans); font-size: 10px; font-weight: 500; letter-spacing: .08em; color: var(--color-muted-2); }
.ed-article-sources ol { margin: 0; padding-left: 18px; }
.ed-article-sources li { margin: 7px 0; color: var(--color-muted); font-size: 12px; line-height: 1.7; }
.ed-article-sources a { color: var(--color-ink-2); border-bottom: 1px solid var(--color-line-strong); }


/* 前台自有加载进度条，不复用后台翊象 UI 资源。 */
.ed-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 3000;
    width: 100%;
    height: 2px;
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease;
}
.ed-progress.is-active { opacity: 1; }
.ed-progress span {
    display: block;
    width: 0;
    height: 100%;
    background: var(--color-accent);
    transition: width .28s cubic-bezier(.2,.7,.2,1);
}


/* 文章富文本：后台 Quill 内容在前台的排版。 */
.ed-prose h2 { margin: 42px 0 14px; font-family: var(--font-serif); font-size: clamp(1.45rem, 2.4vw, 2rem); font-weight: 400; line-height: 1.3; letter-spacing: -.02em; }
.ed-prose h3 { margin: 30px 0 10px; font-family: var(--font-serif); font-size: 1.35rem; font-weight: 400; }
.ed-prose ul, .ed-prose ol { margin: 18px 0; padding-left: 22px; }
.ed-prose li { margin: 7px 0; line-height: 1.85; }
.ed-prose blockquote { margin: 24px 0; padding: 4px 0 4px 18px; border-left: 2px solid var(--color-accent); color: var(--color-muted); }
.ed-prose pre { margin: 22px 0; padding: 16px; overflow-x: auto; background: var(--color-ink); color: var(--color-paper); font-family: var(--font-mono); font-size: 11px; line-height: 1.7; }
.ed-prose code { padding: 1px 4px; background: var(--color-paper-2); font-family: var(--font-mono); font-size: .9em; }
.ed-prose img { display: block; max-width: 100%; height: auto; margin: 26px 0; border: 1px solid var(--color-line); }
.ed-prose hr { margin: 34px 0; border: 0; border-top: 1px solid var(--color-line); }