:root {
  --ink: #102936;
  --ink-2: #1e3d48;
  --red: #b6382c;
  --red-dark: #8f2c24;
  --green: #71867d;
  --paper: #ffffff;
  --mist: #f3f5f4;
  --line: #d7ddda;
  --muted: #68777b;
  --shadow: 0 18px 46px rgba(16, 41, 54, .12);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; letter-spacing: 0; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header { position: sticky; top: 0; z-index: 50; height: 76px; padding: 0 max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; gap: 24px; border-bottom: 1px solid rgba(16,41,54,.1); background: rgba(255,255,255,.96); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 11px; min-width: 245px; flex-shrink: 0; }
.brand img { width: 46px; height: 46px; object-fit: contain; }
.brand span { display: flex; flex-direction: column; line-height: 1.25; }
.brand strong { font-size: 15px; font-weight: 750; }
.brand small { color: var(--muted); font-family: Arial, sans-serif; font-size: 9px; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; justify-content: center; gap: 4px; flex: 1; }
.main-nav a { position: relative; padding: 25px 10px 22px; font-size: 13px; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 0; height: 3px; background: var(--red); transform: scaleX(0); transition: transform .2s ease; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.header-action { padding: 9px 15px; border: 1px solid var(--ink); font-size: 13px; white-space: nowrap; flex-shrink: 0; }
.header-action:hover { background: var(--ink); color: white; }
.nav-toggle { display: none; border: 0; background: none; color: var(--ink); }

.page[hidden] { display: none !important; }
.hero-carousel { position: relative; min-height: calc(100vh - 76px); max-height: 840px; overflow: hidden; background: #eef3f1; }
.hero-slide { position: absolute; inset: 0; display: flex; align-items: center; background-position: center; background-size: cover; opacity: 0; visibility: hidden; transition: opacity .65s ease, visibility .65s ease; }
.hero-slide.active { z-index: 1; opacity: 1; visibility: visible; }
.hero-slide::before { content: ""; position: absolute; inset: 0; pointer-events: none; }
.hero-slide-strategy { background-image: url("/static/hero-factoring-ai.png"); }
.hero-slide-strategy::before { background: linear-gradient(90deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.88) 34%, rgba(255,255,255,.52) 54%, rgba(255,255,255,0) 72%); }
.hero-slide-activity { background-image: url("/static/hero-ai-customization-activity.png?v=20260819"); }
.hero-slide-activity::before { background: linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.94) 35%, rgba(255,255,255,.68) 54%, rgba(255,255,255,.06) 72%); }
.hero-inner { position: relative; z-index: 1; width: min(var(--max), calc(100% - 56px)); margin: 0 auto; padding-bottom: 42px; }
.hero-slide h1 { width: min(790px, 62vw); margin: 0 0 26px; font-family: "STSong", "SimSun", serif; font-size: clamp(36px, 4.5vw, 64px); line-height: 1.18; font-weight: 700; letter-spacing: 0; }
.hero-slide p { width: min(690px, 57vw); margin: 0 0 34px; color: #2c454e; font-size: 18px; line-height: 1.9; }
.hero-kicker { display: inline-block; margin-bottom: 18px; color: var(--red); font-size: 14px; font-weight: 800; }
.activity-hero-copy h1 { font-size: clamp(38px, 4.2vw, 60px); }
.activity-offer-title > span:first-child { display: block; margin-bottom: 12px; font-size: clamp(28px, 2.6vw, 40px); line-height: 1.35; }
.activity-offer-line { display: flex; align-items: baseline; gap: 14px; }
.activity-offer-line strong { color: var(--red); font-size: clamp(62px, 6.4vw, 88px); line-height: 1; font-weight: 700; }
.activity-offer-line em { color: var(--ink); font-size: clamp(28px, 2.7vw, 40px); line-height: 1; font-style: normal; font-weight: 700; }
.activity-hero-copy p { margin-bottom: 20px; line-height: 1.75; }
.activity-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 0 0 30px; color: var(--ink); font-size: 13px; font-weight: 700; }
.activity-meta span { position: relative; }
.activity-meta span + span::before { content: ""; position: absolute; left: -12px; top: 50%; width: 3px; height: 3px; border-radius: 50%; background: var(--red); transform: translateY(-50%); }
.hero-actions { display: flex; gap: 12px; }
.hero-carousel-controls { position: absolute; z-index: 4; left: 50%; bottom: 24px; width: min(var(--max), calc(100% - 56px)); display: flex; align-items: center; justify-content: space-between; transform: translateX(-50%); pointer-events: none; }
.hero-dots, .hero-arrows { display: flex; align-items: center; gap: 9px; pointer-events: auto; }
.hero-dot { position: relative; width: 28px; height: 38px; padding: 0; border: 0; background: transparent; cursor: pointer; transition: width .2s ease; }
.hero-dot::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 3px; background: rgba(16,41,54,.32); transform: translateY(-50%); transition: background .2s ease; }
.hero-dot.active { width: 52px; }
.hero-dot.active::before { background: var(--red); }
.hero-arrows button { width: 38px; height: 38px; padding: 0; border: 1px solid rgba(16,41,54,.3); background: rgba(255,255,255,.8); color: var(--ink); font-size: 18px; cursor: pointer; }
.hero-arrows button:hover { border-color: var(--ink); background: white; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0 22px; border: 1px solid transparent; border-radius: 2px; font-size: 14px; font-weight: 650; cursor: pointer; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--red); color: white; }
.button-primary:hover { background: var(--red-dark); }
.button-secondary { border-color: var(--ink); background: rgba(255,255,255,.82); color: var(--ink); }
.button-light { border-color: white; color: white; }

.section { padding: 96px max(28px, calc((100vw - var(--max)) / 2)); }
.section-heading { display: grid; grid-template-columns: 180px 1fr; align-items: start; margin-bottom: 46px; }
.section-heading span { color: var(--red); font-size: 14px; font-weight: 750; }
.section-heading h2 { margin: 0; font-family: "STSong", "SimSun", serif; font-size: 38px; line-height: 1.3; }
/* Approved homepage A: one continuous strategy, value and action sequence. */
.home-lower, .trial-directory, .trial-pending, .trial-directions { font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
.home-shell { width: calc(100% - 112px); max-width: var(--max); margin: 0 auto; }
.home-strategy { padding-top: 92px; padding-bottom: 82px; }
.home-lower h2 { margin: 0; font: 900 clamp(32px, 4.6vw, 56px)/1.35 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.home-strategy-heading h2 { font-size: clamp(36px, 6vw, 72px); }
.home-strategy-heading > p { margin: 14px 0 0; color: var(--muted); font-size: 26px; line-height: 1.6; }
.home-stages { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 56px; }
.home-stage { display: grid; grid-template-rows: 32px auto minmax(50px, auto) 1fr auto; padding: 0 32px; border-left: 1px solid var(--line); min-width: 0; }
.home-stage:first-child { padding-left: 0; border-left: 0; }
.home-stage:last-child { padding-right: 0; }
.home-stage-marker { display: flex; align-items: center; gap: 20px; color: var(--red); }
.home-stage-marker > span { font: 400 30px/1 Georgia, serif; }
.home-stage-marker > i { height: 1px; flex: 1; background: var(--line); }
.home-stage-marker svg, .home-guide-link svg { width: 24px; height: 24px; fill: none; stroke: var(--red); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.home-stage h3 { margin: 4px 0 16px; font: 900 50px/1.3 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.home-stage h4 { margin: 0 0 20px; font-size: 19px; line-height: 1.65; font-weight: 650; }
.home-stage > p { margin: 0; color: var(--muted); font-size: 17px; line-height: 1.85; }
.home-stage > strong { position: relative; display: block; min-height: 82px; margin-top: 38px; padding-top: 22px; color: var(--red); font-size: 18px; line-height: 1.65; font-weight: 650; }
.home-stage > strong::before { content: ""; position: absolute; top: 0; left: 0; width: 44px; height: 1px; background: var(--line); }
.home-values { padding: 58px 0 52px; background: var(--mist); }
.home-value-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 42px; }
.home-value-list article { padding: 0 30px; border-left: 1px solid var(--line); }
.home-value-list article:first-child { padding-left: 0; border-left: 0; }
.home-value-list article:last-child { padding-right: 0; }
.home-value-list h3 { margin: 0 0 14px; font: 900 28px/1.4 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.home-value-list p { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.75; }
.home-governance { padding-top: 54px; padding-bottom: 64px; }
.home-governance > p { margin: 16px 0 0; color: var(--muted); font-size: 20px; }
.home-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 32px; }
.home-actions .button { min-height: 58px; min-width: 190px; padding: 0 28px; border-radius: 0; font-size: 18px; font-weight: 500; }
.home-cooperation { background: white; border-color: var(--red); }
.home-cooperation:hover { color: var(--red); }
.home-guide-link { display: inline-flex; align-items: center; gap: 24px; margin-left: 12px; border-bottom: 1px solid var(--red); font-size: 16px; }
.home-guide-link:focus-visible { outline: 2px solid var(--red); outline-offset: 5px; }
@media (max-width: 1120px) {
  .home-stage { padding-left: 16px; padding-right: 16px; }
  .home-stage h4 { font-size: 18px; }
  .home-value-list article { padding-left: 24px; padding-right: 24px; }
}
@media (max-width: 820px) {
  .home-shell { width: calc(100% - 44px); }
  .home-strategy { padding-top: 48px; padding-bottom: 48px; }
  .home-strategy-heading > p { font-size: 19px; }
  .home-stages { grid-template-columns: 1fr; margin-top: 36px; gap: 32px; }
  .home-stage, .home-stage:first-child, .home-stage:last-child { padding: 0; border: 0; grid-template-rows: auto; }
  .home-stage h3 { margin: 8px 0 12px; font-size: 38px; }
  .home-stage h4 { margin-bottom: 14px; }
  .home-stage > p { font-size: 16px; }
  .home-stage > strong { min-height: 0; margin-top: 20px; padding-top: 16px; font-size: 16px; }
  .home-stage-marker > span { font-size: 24px; }
  .home-stage-marker svg { transform: rotate(90deg); }
  .home-values { padding: 40px 0; }
  .home-value-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 0; margin-top: 28px; }
  .home-value-list article { padding: 0 20px; }
  .home-value-list article:nth-child(odd) { padding-left: 0; border-left: 0; }
  .home-value-list article:nth-child(even) { padding-right: 0; }
  .home-value-list h3 { font-size: 24px; }
  .home-value-list p { font-size: 16px; }
  .home-governance { padding-top: 40px; padding-bottom: 48px; }
  .home-governance > p { font-size: 16px; }
  .home-actions { gap: 16px; margin-top: 26px; }
  .home-actions .button { min-width: 156px; min-height: 48px; font-size: 16px; padding: 0 20px; }
  .home-guide-link { margin-left: 0; font-size: 15px; }
}
@media (max-width: 520px) {
  .home-lower h2 { font-size: 30px; }
  .home-strategy-heading h2 { font-size: 32px; }
  .home-value-list { grid-template-columns: 1fr; }
  .home-value-list article, .home-value-list article:nth-child(even) { padding: 0 0 22px; border: 0; border-bottom: 1px solid var(--line); }
  .home-value-list article:last-child { border-bottom: 0; padding-bottom: 0; }
  .home-actions .button { min-width: 0; flex: 1; }
  .home-guide-link { flex-basis: 100%; width: fit-content; flex-grow: 0; }
}

.inner-hero { position: relative; min-height: 390px; padding: 92px max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: end; overflow: hidden; background-color: var(--ink); background-position: center; background-size: cover; color: white; }
.inner-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,28,37,.94) 0%, rgba(6,28,37,.76) 40%, rgba(6,28,37,.26) 72%, rgba(6,28,37,.08) 100%); }
.inner-hero div { position: relative; z-index: 1; max-width: 820px; }
.inner-hero h1 { margin: 0 0 16px; font: 700 clamp(42px, 5vw, 66px)/1.2 "STSong", "SimSun", serif; }
.inner-hero p { margin: 0; max-width: 720px; color: #e3ece9; font-size: 18px; text-shadow: 0 1px 12px rgba(0,0,0,.3); }
.services-hero { background-image: url("/static/inner-hero-services.webp"); }
.about-hero { background-image: url("/static/inner-hero-about.webp"); }
.activity-detail-hero { min-height: 520px; background-image: url("/static/hero-ai-customization-activity.png?v=20260819"); background-position: center; }
.activity-detail-hero::before { background: linear-gradient(90deg, rgba(6,28,37,.96) 0%, rgba(6,28,37,.88) 40%, rgba(6,28,37,.36) 65%, rgba(6,28,37,.04) 82%); }
.activity-detail-hero div { max-width: 790px; }
.activity-detail-hero div > span { display: inline-block; margin-bottom: 14px; color: #ff8176; font-size: 14px; font-weight: 800; }
.activity-detail-hero h1 { font-size: clamp(42px, 5vw, 64px); }
.activity-overview { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; }
.activity-overview > div:first-child > span, .activity-rules-lead > span, .activity-contact > div:first-child > span { color: var(--red); font-size: 14px; font-weight: 800; }
.activity-overview h2, .activity-rules h2, .activity-contact h2 { margin: 12px 0 0; font: 700 38px/1.38 "STSong", "SimSun", serif; }
.activity-overview p { margin: 0 0 20px; color: var(--muted); font-size: 17px; }
.activity-scenes { background: var(--mist); }
.activity-scene-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.activity-scene-list article { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 38px 34px 38px 0; border-bottom: 1px solid var(--line); }
.activity-scene-list article:nth-child(odd) { border-right: 1px solid var(--line); }
.activity-scene-list article:nth-child(even) { padding-left: 34px; }
.activity-scene-list article > b { color: var(--red); font: 700 13px/1.5 Arial, sans-serif; }
.activity-scene-list h3 { margin: 0 0 10px; font-size: 23px; }
.activity-scene-list p { margin: 0; color: var(--muted); }
.activity-scene-list ul { display: flex; flex-wrap: wrap; gap: 6px 20px; margin: 15px 0 0; padding: 0; list-style: none; color: var(--ink-2); font-size: 13px; }
.activity-scene-list li::before { content: "—"; margin-right: 6px; color: var(--red); }
.activity-method-grid { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.activity-method-grid li { min-height: 220px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.activity-method-grid b { color: var(--red); font: 700 13px Arial, sans-serif; }
.activity-method-grid h3 { margin: 48px 0 8px; font-size: 20px; }
.activity-method-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.activity-rules { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; background: var(--ink); color: white; }
.activity-rules-lead p { margin: 22px 0 0; color: #c9d7d4; }
.activity-rule-list { border-top: 1px solid rgba(255,255,255,.22); }
.activity-rule-list p { display: grid; grid-template-columns: 120px 1fr; gap: 22px; margin: 0; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
.activity-rule-list b { color: #ff8176; }
.activity-rule-list span { color: #e2ebe9; }
.activity-contact { display: grid; grid-template-columns: 1.15fr .85fr; gap: 90px; align-items: center; }
.activity-contact p { max-width: 680px; margin: 20px 0 28px; color: var(--muted); font-size: 17px; }
.activity-qr { display: grid; justify-items: center; padding-left: 60px; border-left: 1px solid var(--line); text-align: center; }
.activity-qr img { width: 220px; height: 220px; margin-bottom: 18px; object-fit: contain; }
.activity-qr strong { font-size: 18px; }
.activity-qr span { margin-top: 4px; color: var(--muted); font-size: 13px; }
.notice-shell { padding: 42px max(28px, calc((100vw - var(--max)) / 2)) 96px; background: var(--mist); }
.notice-toolbar { width: min(960px, 100%); margin: 0 auto 16px; display: flex; align-items: center; justify-content: space-between; }
.notice-toolbar a, .notice-toolbar button { min-height: 38px; padding: 0 14px; border: 1px solid var(--line); background: white; color: var(--ink); font-size: 13px; cursor: pointer; }
.notice-toolbar a { display: inline-flex; align-items: center; }
.notice-toolbar a:hover, .notice-toolbar button:hover { border-color: var(--ink); }
.notice-document { width: min(960px, 100%); margin: 0 auto; padding: 78px 90px 86px; border: 1px solid #d9ddda; background: white; box-shadow: 0 14px 34px rgba(16,41,54,.07); color: #202020; font-family: "FangSong", "STFangsong", "SimSun", serif; font-size: 18px; line-height: 2.1; text-align: justify; }
.notice-heading { margin-bottom: 52px; padding-top: 22px; border-top: 4px solid #b72822; text-align: center; }
.notice-heading span { display: block; margin-bottom: 15px; color: #b72822; font-family: "Microsoft YaHei UI", sans-serif; font-size: 13px; font-weight: 800; letter-spacing: 0; }
.notice-heading h1 { margin: 0; color: #111; font-family: "STZhongsong", "SimSun", serif; font-size: 38px; line-height: 1.55; font-weight: 700; letter-spacing: 0; }
.notice-document > p, .notice-section > p { margin: 0 0 18px; text-indent: 2em; }
.notice-document .notice-recipient { margin-bottom: 10px; text-indent: 0; }
.notice-section { margin-top: 31px; }
.notice-section h2 { margin: 0 0 8px; color: #111; font-family: "SimHei", "Microsoft YaHei UI", sans-serif; font-size: 19px; line-height: 1.8; }
.notice-scenes, .notice-rules { margin: 10px 0 0; padding-left: 1.55em; }
.notice-scenes li, .notice-rules li { margin: 0 0 13px; padding-left: .35em; }
.notice-scenes h3 { display: inline; margin: 0; font: 700 18px/2.1 "FangSong", "STFangsong", "SimSun", serif; }
.notice-scenes h3::after { content: "。"; }
.notice-scenes p { display: inline; margin: 0; }
.notice-apply { padding-top: 2px; }
.notice-qr { display: grid; grid-template-columns: 150px 1fr; gap: 26px; align-items: center; width: min(470px, 100%); margin: 28px auto 0; padding: 22px; border: 1px solid var(--line); font-family: "Microsoft YaHei UI", sans-serif; text-align: left; }
.notice-qr img { width: 150px; height: 150px; object-fit: contain; }
.notice-qr div { display: flex; flex-direction: column; gap: 7px; }
.notice-qr strong { color: var(--ink); font-size: 18px; }
.notice-qr span { color: var(--muted); font-size: 13px; line-height: 1.7; }
.notice-document .notice-ending { margin: 36px 0 0; text-indent: 2em; }

.engine-band { display: flex; align-items: center; justify-content: space-between; gap: 40px; background: var(--mist); }
.engine-band h2 { margin: 0 0 8px; }
.engine-band p { margin: 0; color: var(--muted); }
.engine-band span { padding: 7px 12px; border: 1px solid var(--green); color: var(--ink-2); font-size: 13px; white-space: nowrap; }

.split-lead { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.split-lead h2 { margin: 0; font: 700 34px/1.4 "STSong", "SimSun", serif; }
.split-lead p { margin: 0; color: var(--muted); font-size: 17px; }
/* Guide: one consistent list, using the site's existing colors and typography. */
.guide-heading, .faq-list, .guide-contact { width: calc(100% - 56px); max-width: 1040px; margin-left: auto; margin-right: auto; }
.guide-heading { padding: 54px 0 30px; }
.guide-heading h1 { margin: 0 0 12px; font: 700 40px/1.3 "STSong", "SimSun", serif; }
.guide-heading p { margin: 0; color: var(--muted); font-size: 16px; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: grid; grid-template-columns: 60px minmax(0, 1fr) 20px; gap: 20px; align-items: center; min-height: 72px; padding: 20px 0; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--red); font: 400 24px/1 Arial, sans-serif; text-align: center; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list summary:hover .faq-question { color: var(--red-dark); }
.faq-list summary:focus-visible, .deployment-comparison:focus-visible, .guide-contact a:focus-visible { outline: 2px solid var(--red); outline-offset: 4px; }
.faq-index { color: var(--muted); font-size: 13px; }
.faq-question { color: var(--ink); font-size: 19px; font-weight: 650; line-height: 1.55; }
.faq-answer { padding: 0 40px 28px 80px; font-size: 15px; line-height: 1.85; }
.faq-answer strong { display: block; margin-bottom: 10px; color: var(--ink); font-size: 16px; font-weight: 650; }
.faq-answer p { margin: 0 0 12px; color: var(--muted); }
.faq-answer > :last-child { margin-bottom: 0; }
.faq-reasons { margin: 16px 0; padding-left: 24px; }
.faq-reasons li { padding-left: 4px; margin-bottom: 12px; color: var(--muted); }
.faq-reasons b { display: block; margin-bottom: 3px; color: var(--ink-2); font-weight: 650; }
.deployment-comparison { max-width: 100%; overflow-x: auto; margin: 18px 0; }
.deployment-table { width: 100%; min-width: 700px; border-collapse: collapse; table-layout: fixed; color: var(--muted); font-size: 14px; line-height: 1.75; }
.deployment-table th, .deployment-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; overflow-wrap: anywhere; }
.deployment-table thead th { background: var(--mist); color: var(--ink); font-weight: 650; }
.deployment-table th:first-child { width: 18%; }
.deployment-table tbody th { color: var(--ink-2); font-weight: 650; }
.faq-answer .comparison-hint { display: none; }
.guide-contact { padding: 24px 0 54px; margin-top: 0; margin-bottom: 0; color: var(--muted); font-size: 14px; }
.guide-contact a { margin: 0 4px; color: var(--red); text-decoration: underline; text-underline-offset: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

.service-list { padding-top: 40px; }
.service-list article { display: grid; grid-template-columns: 90px 1fr; padding: 42px 0; border-bottom: 1px solid var(--line); }
.service-list b { color: var(--red); font: 700 14px Arial, sans-serif; }
.service-list h2 { margin: 0 0 8px; }
.service-list p { max-width: 820px; margin: 0; color: var(--muted); }


.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.about-grid h2 { margin: 0 0 20px; font: 700 34px/1.4 "STSong", "SimSun", serif; }
.about-grid > div > p { color: var(--muted); }
.principles p { display: grid; grid-template-columns: 110px 1fr; padding: 16px 0; margin: 0; border-top: 1px solid var(--line); }
.principles p:last-child { border-bottom: 1px solid var(--line); }
.principles span { color: var(--muted); }
.company-profile { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; background: #102f3a; color: white; }
.company-profile > div:first-child > span { color: #e5948d; font-size: 12px; font-weight: 700; }
.company-profile h2 { max-width: 460px; margin: 14px 0 0; font: 700 38px/1.45 "STSong", "SimSun", serif; }
.company-profile p { margin: 0 0 18px; color: #d6e0dd; line-height: 1.9; }
.company-profile p:last-child { margin-bottom: 0; }

.trial-error { min-height: 22px; padding-top: 5px; color: var(--red-dark); font-size: 12px; }
.form-result { color: var(--red); font-size: 13px; }

.site-footer { padding: 54px max(28px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr auto; gap: 26px; background: #0c222c; color: white; }
.site-footer strong { font-size: 18px; }
.site-footer p { margin: 5px 0 0; color: #aebdb9; }
.site-footer nav { display: flex; align-items: start; gap: 22px; font-size: 13px; }
.footer-legal { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.16); color: #879996; font-size: 12px; }

@media (max-width: 1240px) {
  .header-action { display: none; }
}

@media (max-width: 1120px) {
  .site-header { padding-left: 22px; padding-right: 22px; }
  .brand { min-width: auto; }
  .brand small { display: none; }
  .main-nav { gap: 0; }
  .main-nav a { padding-left: 7px; padding-right: 7px; font-size: 12px; }
  .header-action { display: none; }
}

@media (max-width: 1020px) {
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav { position: absolute; top: 76px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; padding: 12px 22px 18px; background: white; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 11px 0; font-size: 14px; }
  .main-nav a::after { display: none; }
}

@media (max-width: 820px) {
  .guide-heading, .faq-list, .guide-contact { width: calc(100% - 44px); }
  .guide-heading { padding: 36px 0 24px; }
  .guide-heading h1 { font-size: 32px; }
  .guide-heading p { font-size: 14px; }
  .faq-list summary { grid-template-columns: 48px minmax(0, 1fr) 18px; gap: 12px; padding: 18px 0; }
  .faq-question { font-size: 17px; }
  .faq-index { font-size: 12px; }
  .faq-answer { padding: 0 0 24px 60px; }
  .faq-answer .comparison-hint { display: block; margin-top: -10px; font-size: 12px; }
  .guide-contact { padding-bottom: 40px; }
  .site-header { height: 66px; }
  .brand img { width: 40px; height: 40px; }
  .brand strong { font-size: 13px; }
  .main-nav { top: 66px; }
  .hero-carousel { min-height: calc(100vh - 66px); }
  .hero-slide { align-items: end; background-position: 61% center; }
  .hero-inner { width: calc(100% - 40px); padding-bottom: 94px; }
  .hero-slide h1 { width: 100%; font-size: 37px; text-shadow: 0 1px 18px rgba(255,255,255,.9); }
  .hero-slide::before { background: linear-gradient(180deg, rgba(255,255,255,.12) 0%, rgba(255,255,255,.84) 50%, rgba(255,255,255,.98) 100%); }
  .hero-slide p { width: 100%; font-size: 15px; line-height: 1.7; }
  .hero-slide-activity { background-position: 66% center; }
  .activity-hero-copy h1 { font-size: 36px; }
  .activity-offer-title > span:first-child { font-size: 27px; }
  .activity-offer-line strong { font-size: 64px; }
  .activity-offer-line em { font-size: 30px; }
  .hero-carousel-controls { bottom: 24px; width: calc(100% - 40px); }
  .section { padding: 68px 22px; }
  .split-lead, .about-grid, .company-profile { grid-template-columns: 1fr; gap: 32px; }
  .section-heading { grid-template-columns: 1fr; gap: 8px; }
  .section-heading h2 { font-size: 30px; }
  .engine-band { align-items: flex-start; flex-direction: column; }
  .inner-hero { min-height: 310px; padding: 64px 22px; background-position: 68% center; }
  .inner-hero::before { background: linear-gradient(90deg, rgba(6,28,37,.92) 0%, rgba(6,28,37,.72) 62%, rgba(6,28,37,.32) 100%); }
  .site-footer { grid-template-columns: 1fr; }
  .site-footer nav { flex-wrap: wrap; }
  .footer-legal { flex-direction: column; gap: 8px; }
  .activity-detail-hero { min-height: 380px; background-position: 62% center; }
  .activity-detail-hero h1 { font-size: 40px; }
  .activity-overview, .activity-rules, .activity-contact { grid-template-columns: 1fr; gap: 38px; }
  .activity-scene-list { grid-template-columns: 1fr; }
  .activity-scene-list article:nth-child(odd) { border-right: 0; }
  .activity-scene-list article:nth-child(even) { padding-left: 0; }
  .activity-method-grid { grid-template-columns: 1fr 1fr; }
  .activity-qr { padding: 36px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  .notice-shell { padding: 28px 22px 68px; }
  .notice-document { padding: 58px 50px 66px; }
  .notice-heading h1 { font-size: 33px; }
}

@media (max-width: 520px) {
  .faq-answer { padding-left: 0; font-size: 14px; }
  .faq-answer strong { font-size: 15px; }
  .deployment-table th, .deployment-table td { padding: 12px; }
  .brand strong { max-width: 190px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .hero-slide h1 { font-size: 31px; }
  .hero-slide p { margin-bottom: 22px; }
  .hero-kicker { margin-bottom: 10px; font-size: 12px; }
  .activity-hero-copy h1 { font-size: 30px; }
  .activity-offer-title > span:first-child { margin-bottom: 8px; font-size: 21px; }
  .activity-offer-line { gap: 10px; }
  .activity-offer-line strong { font-size: 50px; }
  .activity-offer-line em { font-size: 23px; }
  .activity-meta { gap: 3px 16px; margin-bottom: 20px; font-size: 11px; }
  .activity-meta span + span::before { left: -9px; }
  .hero-arrows { display: none; }
  .company-profile h2 { font-size: 30px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .activity-detail-hero h1 { font-size: 34px; }
  .activity-overview h2, .activity-rules h2, .activity-contact h2 { font-size: 30px; }
  .activity-scene-list article { grid-template-columns: 38px 1fr; gap: 10px; padding: 30px 0; }
  .activity-scene-list ul { display: none; }
  .activity-method-grid { grid-template-columns: 1fr; }
  .activity-method-grid li { min-height: auto; }
  .activity-method-grid h3 { margin-top: 28px; }
  .activity-rule-list p { grid-template-columns: 92px 1fr; gap: 14px; }
  .activity-qr img { width: 190px; height: 190px; }
  .notice-shell { padding: 20px 12px 48px; }
  .notice-toolbar { margin-bottom: 10px; }
  .notice-document { padding: 42px 24px 52px; font-size: 16px; line-height: 2; }
  .notice-heading { margin-bottom: 38px; padding-top: 16px; }
  .notice-heading h1 { font-size: 27px; line-height: 1.5; }
  .notice-section { margin-top: 25px; }
  .notice-section h2 { font-size: 18px; }
  .notice-scenes h3 { font-size: 16px; line-height: 2; }
  .notice-qr { grid-template-columns: 112px 1fr; gap: 16px; padding: 14px; }
  .notice-qr img { width: 112px; height: 112px; }
  .notice-qr strong { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-slide, .hero-dot, .hero-dot::before, .button { transition: none; }
}

@media print {
  @page { size: A4; margin: 18mm 17mm; }
  body { background: white; }
  .site-header, .site-footer, .notice-toolbar { display: none !important; }
  .notice-shell { padding: 0; background: white; }
  .notice-document { width: 100%; max-width: none; padding: 0; border: 0; box-shadow: none; font-size: 12pt; line-height: 1.9; }
  .notice-heading { margin-bottom: 30pt; }
  .notice-heading h1 { font-size: 23pt; }
  .notice-section { break-inside: avoid; }
  .notice-qr { break-inside: avoid; }
}

@font-face {
  font-family: "Portal Serif";
  src: url("/static/fonts/portal-serif-black.woff2?v=1") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
/* Approved cooperation/trial design. These components belong only to their page. */
[data-page="cooperation"] { --collab-width: 1200px; }
.collab-shell { width: calc(100% - 56px); max-width: var(--collab-width); margin: 0 auto; }
.collab-hero-background { background-color: white; background-image: linear-gradient(0deg, white 0%, rgba(255,255,255,.98) 3%, rgba(255,255,255,0) 24%), url("/static/hero-cooperation-consultation-v1.webp?v=1"); background-position: center top; background-size: cover; background-repeat: no-repeat; }
.collab-hero { padding-top: 76px; padding-bottom: 126px; }
.collab-hero h1 { margin: 0; font: 700 clamp(42px, 5.2vw, 74px)/1.23 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; letter-spacing: -.02em; }
.collab-hero > p { margin: 28px 0 0; color: var(--ink-2); font-size: 20px; }
.collab-actions { display: flex; gap: 40px; align-items: center; margin-top: 44px; }
.collab-primary { padding: 17px 44px; border: 1px solid var(--red); background: var(--red); color: white; font-size: 18px; cursor: pointer; }
.collab-primary:hover { background: var(--red-dark); border-color: var(--red-dark); }
.collab-actions a { display: inline-flex; gap: 22px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--red); font-size: 17px; }
.collab-actions a:hover { color: var(--red); }
.collab-actions svg { width: 22px; height: 22px; fill: none; stroke: var(--red); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.collab-primary:focus-visible, .collab-actions a:focus-visible, .trial-name:focus-visible, .trial-enter:focus-visible { outline: 2px solid var(--red); outline-offset: 5px; }
.collab-heading { display: flex; align-items: center; justify-content: space-between; gap: 48px; margin-bottom: 50px; }
.collab-heading h2, .collab-contact h2 { margin: 0; font: 700 clamp(30px, 3.5vw, 48px)/1.35 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.collab-heading p { max-width: 610px; margin: 0; color: var(--muted); font-size: 17px; }
.collab-steps { display: grid; grid-template-columns: 1fr 1fr; }
.collab-step { padding-right: 54px; }
.collab-step + .collab-step { padding-left: 54px; padding-right: 0; border-left: 1px solid var(--line); }
.collab-step > span { color: var(--red); font: 400 25px/1.4 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.collab-step h3 { margin: 8px 0 20px; font: 700 38px/1.35 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.collab-step > p { min-height: 64px; margin: 0 0 22px; color: var(--muted); font-size: 18px; }
.collab-checklist { margin: 0; padding: 0; list-style: none; font-size: 18px; }
.collab-checklist li { position: relative; padding-left: 34px; margin: 15px 0; }
.collab-checklist li::before { content: ""; position: absolute; left: 3px; top: .52em; width: 15px; height: 8px; border-left: 2px solid var(--red); border-bottom: 2px solid var(--red); transform: rotate(-45deg); }
.collab-principles { margin-top: 54px; padding-top: 30px; padding-bottom: 88px; border-top: 1px solid var(--line); }
.collab-principles > p { margin: 0 0 34px; color: var(--muted); font-size: 18px; }
.collab-principles dl { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; }
.collab-principles dl > div { padding-right: 22px; }
.collab-principles dl > div + div { padding-left: 30px; border-left: 1px solid var(--line); }
.collab-principles dt { margin-bottom: 4px; font: 700 24px/1.5 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.collab-principles dd { margin: 0; color: var(--muted); font-size: 16px; }
.collab-scenarios { padding: 72px 0 68px; background: var(--mist); }
.collab-criteria { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px 68px; margin: 0; padding: 0; list-style: none; }
.collab-criteria h3 { margin: 0 0 6px; font: 700 28px/1.4 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.collab-criteria p { margin: 0; color: var(--muted); font-size: 17px; }
.collab-contact { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 76px; align-items: center; padding-top: 74px; padding-bottom: 74px; scroll-margin-top: 100px; outline: none; }
.collab-contact > div > p { margin: 28px 0 20px; font-size: 18px; color: var(--ink-2); }
.collab-qr { display: flex; flex-direction: column; align-items: center; text-align: center; }
.collab-qr img { width: 204px; height: auto; margin-bottom: 10px; }
.collab-qr strong { font-size: 18px; }
.collab-contact .collab-qr p { margin: 16px 0 0; color: var(--muted); font-size: 17px; }

.trial-shell { width: calc(100% - 56px); max-width: var(--max); margin-left: auto; margin-right: auto; }
.trial-intro { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 70px; align-items: start; padding-top: 70px; padding-bottom: 58px; }
.trial-intro h1 { margin: 0 0 22px; font: 700 clamp(42px, 5.2vw, 74px)/1.3 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.trial-intro-copy > p { margin: 0; color: var(--ink-2); font-size: 20px; }
.trial-intro-copy .trial-instruction { margin-top: 14px; color: var(--muted); font-size: 17px; }
.trial-application { display: flex; flex-direction: column; align-items: center; text-align: center; }
.trial-application img { width: clamp(120px, 11.5vw, 168px); height: auto; margin-bottom: 10px; }
.trial-application strong { color: var(--ink); font-size: 17px; }
.trial-application p { max-width: 280px; margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.trial-directory { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.trial-item { display: grid; grid-template-columns: 52px minmax(0, 1fr); grid-template-rows: 1fr auto; gap: 22px 24px; align-items: start; padding: 36px 0; border-bottom: 1px solid var(--line); }
.trial-item:nth-child(odd):not(:last-child) { padding-right: 36px; }
.trial-item:nth-child(even) { position: relative; padding-left: 36px; }
.trial-item:nth-child(even)::before { content: ""; position: absolute; top: 36px; bottom: 36px; left: 0; width: 1px; background: var(--line); }
.trial-item:last-child { grid-column: 1 / -1; grid-template-columns: 52px minmax(0, 1fr) 198px; grid-template-rows: auto; align-items: center; border-bottom: 0; }
.trial-item > img { width: 52px; height: 52px; object-fit: contain; }
.trial-item h2 { margin: 0 0 10px; font-family: inherit; font-size: 20px; font-weight: 600; line-height: 1.5; }
.trial-name { padding: 0; border: 0; background: none; color: var(--ink); font: inherit; text-align: left; cursor: pointer; }
.trial-name:hover { color: var(--red); }
.trial-item p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.trial-item:not(:last-child) p { min-height: 54px; }
.trial-item ul { display: flex; flex-wrap: wrap; gap: 5px 20px; margin: 20px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 13px; line-height: 1.8; }
.trial-item li + li::before { content: "·"; position: relative; left: -11px; color: #a2adaa; }
.trial-enter { display: inline-flex; align-items: center; justify-content: center; grid-column: 2; justify-self: start; width: 198px; max-width: 100%; min-height: 42px; padding: 8px 12px; border: 1px solid var(--red); background: white; color: var(--red); font-family: inherit; font-size: 15px; font-weight: 600; line-height: 1.5; cursor: pointer; text-align: center; }
.trial-item:last-child .trial-enter { grid-column: 3; }
.trial-enter:hover { background: var(--red); color: white; }
.trial-pending { padding: 42px 0; background: var(--mist); }
.trial-pending h2, .trial-directions > h2 { margin: 0; font: 900 30px/1.4 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.trial-section-lead { margin: 10px 0 30px; color: var(--muted); font-size: 15px; }
.trial-pending-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.trial-planned-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr) 76px; gap: 28px; align-items: start; padding: 20px 0; border-top: 1px solid var(--line); }
.trial-planned-row:last-child { border-bottom: 1px solid var(--line); }
.trial-planned-row h3 { margin: 0; color: var(--ink); font-family: inherit; font-size: 17px; font-weight: 600; line-height: 1.6; }
.trial-planned-row p { margin: 0; color: var(--muted); font-size: 14px; }
.trial-planned-row > span { padding-top: 2px; color: var(--muted); font-size: 14px; text-align: right; }
.trial-pending-list .trial-planned-row { grid-template-columns: minmax(0, 1fr) 62px; gap: 12px 20px; padding: 0 36px 0 0; border: 0; }
.trial-pending-list .trial-planned-row + .trial-planned-row { padding: 0 0 0 36px; border-left: 1px solid var(--line); }
.trial-pending-list .trial-planned-row p { grid-column: 1 / -1; grid-row: 2; }
.trial-pending-list .trial-planned-row > span { grid-column: 2; grid-row: 1; }
.trial-pending-list .trial-enter { grid-column: 1 / -1; grid-row: 3; margin-top: 8px; background: transparent; }
.trial-pending-list .trial-enter:hover { background: var(--red); }
.trial-directions { padding-top: 42px; padding-bottom: 54px; }
.trial-directions > h2 { margin-bottom: 18px; }

@media (min-width: 1800px) {
  .collab-hero-background { background-size: cover, auto 100%; background-position: center, right top; }
}
@media (max-width: 1120px) {
  .collab-step { padding-right: 34px; }
  .collab-step + .collab-step { padding-left: 34px; }
  .collab-heading { align-items: start; flex-direction: column; gap: 16px; }
  .collab-contact { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 34px; }
  .trial-intro { grid-template-columns: minmax(0, 1fr) 240px; gap: 40px; }
  .trial-item { gap: 20px; }
  .trial-item:nth-child(odd):not(:last-child) { padding-right: 24px; }
  .trial-item:nth-child(even) { padding-left: 24px; }
  .trial-pending-list .trial-planned-row { padding-right: 24px; }
  .trial-pending-list .trial-planned-row + .trial-planned-row { padding-left: 24px; }
}
@media (max-width: 820px) {
  .collab-hero-background { background-image: linear-gradient(0deg, white 0%, rgba(255,255,255,.98) 3%, rgba(255,255,255,0) 24%), linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.92) 48%, rgba(255,255,255,.74) 100%), url("/static/hero-cooperation-consultation-v1.webp?v=1"); background-position: center, center, 66% top; }
  .collab-shell, .trial-shell { width: calc(100% - 44px); }
  .collab-hero { padding-top: 46px; padding-bottom: 64px; }
  .collab-hero > p, .trial-intro-copy > p { font-size: 17px; }
  .collab-actions { gap: 28px; margin-top: 30px; }
  .collab-primary { padding: 14px 24px; font-size: 16px; }
  .collab-actions a { font-size: 15px; gap: 12px; }
  .collab-heading { gap: 12px; margin-bottom: 32px; }
  .collab-heading p { font-size: 15px; }
  .collab-steps { grid-template-columns: 1fr; gap: 32px; }
  .collab-step, .collab-step + .collab-step { padding: 0; border-left: 0; }
  .collab-step + .collab-step { padding-top: 30px; border-top: 1px solid var(--line); }
  .collab-step h3 { font-size: 30px; }
  .collab-step > p { min-height: 0; font-size: 16px; }
  .collab-checklist { font-size: 16px; }
  .collab-principles { margin-top: 38px; padding-bottom: 54px; }
  .collab-principles > p { font-size: 16px; }
  .collab-principles dl { grid-template-columns: 1fr 1fr; gap: 24px; }
  .collab-principles dl > div, .collab-principles dl > div + div { border: 0; padding: 0; }
  .collab-principles dt { font-size: 22px; }
  .collab-principles dd { font-size: 14px; }
  .collab-scenarios { padding: 48px 0; }
  .collab-criteria { grid-template-columns: 1fr 1fr; gap: 30px; }
  .collab-criteria h3 { font-size: 24px; }
  .collab-criteria p { font-size: 15px; }
  .collab-contact { grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 48px; scroll-margin-top: 86px; }
  .collab-contact > div > p { font-size: 16px; }
  .collab-qr { align-items: flex-start; text-align: left; margin-top: 6px; }
  .collab-qr img { width: 180px; }
  .collab-contact .collab-qr p { font-size: 15px; }
  .trial-intro { grid-template-columns: 1fr; gap: 30px; padding-top: 44px; padding-bottom: 34px; }
  .trial-intro-copy .trial-instruction { font-size: 15px; }
  .trial-application { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 6px 20px; text-align: left; align-items: center; }
  .trial-application img { grid-row: 1 / 3; width: 112px; margin: 0; }
  .trial-application strong { align-self: end; font-size: 16px; }
  .trial-application p { margin: 0; align-self: start; font-size: 13px; }
  .trial-directory { grid-template-columns: 1fr; }
  .trial-item, .trial-item:last-child { grid-template-columns: 48px minmax(0, 1fr); grid-template-rows: 1fr auto; gap: 16px 20px; align-items: start; padding: 26px 0; }
  .trial-item:nth-child(odd):not(:last-child), .trial-item:nth-child(even) { padding-left: 0; padding-right: 0; }
  .trial-item:nth-child(even)::before { content: none; }
  .trial-item > img { width: 48px; height: 48px; }
  .trial-item h2 { font-size: 19px; }
  .trial-item:not(:last-child) p { min-height: 0; }
  .trial-item ul { font-size: 13px; gap: 4px 14px; }
  .trial-item li + li::before { left: -7px; }
  .trial-enter, .trial-item:last-child .trial-enter { grid-column: 2; width: 198px; min-height: 44px; }
  .trial-pending { padding: 40px 0; }
  .trial-pending h2, .trial-directions > h2 { font-size: 28px; }
  .trial-pending-list { grid-template-columns: 1fr; gap: 22px; }
  .trial-pending-list .trial-planned-row { padding: 0; }
  .trial-pending-list .trial-planned-row + .trial-planned-row { padding: 22px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .trial-planned-row { grid-template-columns: minmax(0, 1fr) 62px; gap: 8px 18px; padding: 22px 0; }
  .trial-planned-row h3 { font-size: 16px; }
  .trial-planned-row p { grid-column: 1 / -1; grid-row: 2; font-size: 14px; }
  .trial-planned-row > span { grid-column: 2; grid-row: 1; font-size: 13px; }
  .trial-directions { padding-top: 40px; padding-bottom: 48px; }
}
@media (max-width: 520px) {
  .collab-hero h1 { font-size: clamp(30px, 7.7vw, 40px); }
  .collab-hero > p { margin-top: 20px; }
  .collab-actions { flex-wrap: wrap; gap: 18px 24px; }
  .collab-heading h2, .collab-contact h2 { font-size: 30px; }
  .collab-criteria { grid-template-columns: 1fr; gap: 24px; }
  .collab-criteria h3 { font-size: 23px; }
  .trial-intro h1 { font-size: 38px; }
  .trial-item, .trial-item:last-child { grid-template-columns: 42px minmax(0, 1fr); gap: 14px; }
  .trial-item > img { width: 42px; height: 42px; }
  .trial-item h2 { font-size: 18px; }
  .trial-item ul { display: block; }
  .trial-item li { margin-top: 4px; }
  .trial-item li + li::before { content: none; }
}

/* Agent details: shared marketing layout, existing application trial interfaces. */
.agent-detail { font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif; }
.agent-detail-shell { width: calc(100% - 56px); max-width: 1180px; margin: 0 auto; padding: 34px 0 72px; }
.agent-breadcrumb { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-bottom: 40px; color: var(--muted); font-size: 13px; }
.agent-breadcrumb a:hover { color: var(--red); }
.agent-detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 54px; align-items: start; }
.agent-identity { display: flex; gap: 18px; align-items: center; }
.agent-identity img { flex: 0 0 52px; width: 52px; height: 52px; object-fit: contain; }
.agent-identity h1 { margin: 0; font-size: 21px; font-weight: 600; line-height: 1.6; }
.agent-availability { margin: 14px 0 0; color: var(--muted); font-size: 14px; }
.agent-headline { margin: 26px 0 20px; font: 900 34px/1.55 "Portal Serif", "Noto Serif SC", "STZhongsong", "SimSun", serif; }
.agent-description { margin: 0; color: var(--muted); font-size: 16px; line-height: 1.9; }
.agent-benefits { margin: 30px 0 0; padding: 0; list-style: none; }
.agent-benefits li { padding: 18px 0; border-top: 1px solid var(--line); }
.agent-benefits li:last-child { padding-bottom: 0; }
.agent-benefits h2 { margin: 0 0 5px; font-size: 17px; font-weight: 600; line-height: 1.6; }
.agent-benefits p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.agent-trial-panel { min-width: 0; padding-left: 32px; border-left: 1px solid var(--line); }
.agent-trial-panel > h2 { margin: 0 0 10px; font-size: 24px; font-weight: 600; line-height: 1.5; }
.agent-trial-panel > p { margin: 0 0 26px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.agent-trial-panel form[hidden] { display: none; }
.agent-trial-panel label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.agent-trial-panel input { width: 100%; height: 48px; padding: 0 13px; border: 1px solid #bbc6c2; border-radius: 0; color: var(--ink); background: white; font-size: 15px; }
.agent-trial-panel input:focus { outline: 2px solid var(--red); outline-offset: 2px; }
.agent-trial-panel .verify-btn { width: 100%; border-radius: 0; margin-top: 4px; }
.agent-trial-panel .verify-btn:disabled { opacity: .65; transform: none; }
.agent-trial-application { margin-top: 28px; padding-top: 22px; border-top: 1px solid var(--line); }
.agent-trial-application h3 { margin: 0 0 14px; font-size: 17px; font-weight: 600; }
.agent-trial-qr { display: grid; grid-template-columns: 116px minmax(0, 1fr); gap: 16px; align-items: center; }
.agent-trial-qr img { width: 116px; height: 116px; object-fit: contain; }
.agent-trial-qr p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.agent-breadcrumb a:focus-visible, .agent-trial-panel button:focus-visible { outline: 2px solid var(--red); outline-offset: 4px; }
@media (max-width: 900px) {
  .agent-detail-layout { grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; }
  .agent-trial-panel { padding-left: 24px; }
  .agent-headline { font-size: 29px; }
  .agent-trial-qr { grid-template-columns: 96px minmax(0, 1fr); gap: 12px; }
  .agent-trial-qr img { width: 96px; height: 96px; }
}
@media (max-width: 700px) {
  .agent-detail-shell { width: calc(100% - 40px); padding: 24px 0 42px; }
  .agent-breadcrumb { margin-bottom: 26px; font-size: 12px; gap: 6px 10px; }
  .agent-detail-layout { grid-template-columns: minmax(0, 1fr); gap: 34px; }
  .agent-identity { gap: 14px; }
  .agent-identity img { flex-basis: 42px; width: 42px; height: 42px; }
  .agent-identity h1 { font-size: 18px; }
  .agent-headline { margin: 22px 0 16px; font-size: 27px; line-height: 1.5; }
  .agent-description { font-size: 15px; }
  .agent-benefits { margin-top: 24px; }
  .agent-trial-panel { padding: 26px 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .agent-trial-panel > h2 { font-size: 22px; }
  .agent-trial-qr { grid-template-columns: 116px minmax(0, 1fr); gap: 18px; }
  .agent-trial-qr img { width: 116px; height: 116px; }
}