:root {
  --K-cfb-ink: #141414;
  --K-cfb-paper: #f4f3ee;
  --K-cfb-mint: #06f9a8;
  --K-cfb-violet: #c105ff;
  --K-cfb-yellow: #f5cd05;
  --K-cfb-lilac: #c2c4ff;
  --K-cfb-muted: #a8a8a8;
  --K-cfb-shell: 90%;
  --K-cfb-radius: 18px;
  --K-cfb-shadow: 0 18px 48px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: #f7f7f7;
  background-color: var(--K-cfb-ink);
  background-image:
    linear-gradient(30deg, rgba(255,255,255,.025) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,.025) 87.5%, rgba(255,255,255,.025)),
    linear-gradient(150deg, rgba(255,255,255,.025) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,.025) 87.5%, rgba(255,255,255,.025)),
    linear-gradient(30deg, rgba(255,255,255,.025) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,.025) 87.5%, rgba(255,255,255,.025)),
    linear-gradient(150deg, rgba(255,255,255,.025) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,.025) 87.5%, rgba(255,255,255,.025));
  background-size: 44px 76px;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }
.K_cfb-shell { width: var(--K-cfb-shell); max-width: 1440px; margin-inline: auto; }
.K_cfb-visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.K_cfb-eyebrow {
  display: inline-block; color: var(--K-cfb-mint); font-size: .72rem;
  font-weight: 800; letter-spacing: .18em; text-transform: uppercase;
}
.K_cfb-section { position: relative; margin: 0 auto 112px; }
.K_cfb-section-heading { max-width: 720px; margin: 0 0 34px; }
.K_cfb-section-heading h2, .K_cfb-profile h2, .K_cfb-careers h2, .K_cfb-contact h2 {
  margin: 8px 0 12px; font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1.12;
}
.K_cfb-section-heading p { max-width: 650px; color: #bbb; margin: 0; }
.K_cfb-section-heading--row {
  max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 30px;
}

/* Header */
.K_cfb-header { position: relative; z-index: 20; background: rgba(20,20,20,.96); border-bottom: 1px solid rgba(193,5,255,.45); }
.K_cfb-header__top { min-height: 90px; display: flex; align-items: center; justify-content: space-between; }
.K_cfb-brand__link { display: inline-flex; align-items: center; gap: 13px; }
.K_cfb-brand__link img { width: 52px; height: 52px; object-fit: contain; }
.K_cfb-brand__wordmark { display: grid; line-height: 1.25; }
.K_cfb-brand__wordmark strong { color: #fff; font-size: 1.08rem; }
.K_cfb-brand__wordmark small { margin-top: 5px; color: #aaa; font-size: .7rem; letter-spacing: .08em; }
.K_cfb-hotline > a { display: flex; align-items: center; gap: 11px; }
.K_cfb-hotline__icon {
  width: 40px; height: 40px; display: grid; place-items: center; color: var(--K-cfb-ink);
  background: var(--K-cfb-yellow); border-radius: 50%;
}
.K_cfb-hotline__copy { display: grid; line-height: 1.3; }
.K_cfb-hotline__copy small { color: #aaa; }
.K_cfb-hotline__copy strong { color: #fff; }
.K_cfb-nav-band { background: linear-gradient(90deg, #c2c4ff, #e3e4ff 50%, #c2c4ff); }
.K_cfb-nav-wrap { min-height: 54px; display: flex; justify-content: center; align-items: center; position: relative; }
.K_cfb-desktop-nav ul, .K_cfb-mobile-nav ul {
  display: flex; align-items: center; justify-content: center; gap: clamp(18px, 3vw, 48px);
  list-style: none; padding: 0; margin: 0;
}
.K_cfb-desktop-nav a, .K_cfb-mobile-nav a { color: #1b1b26; font-size: .92rem; font-weight: 700; }
.K_cfb-desktop-nav a:hover, .K_cfb-mobile-nav a:hover { color: #8b00bf; }
.K_cfb-menu-toggle { display: none; border: 0; background: transparent; padding: 7px; }
.K_cfb-menu-toggle__frame {
  width: 42px; height: 38px; display: flex; flex-direction: column; justify-content: center;
  align-items: center; gap: 4px; border: 2px solid #252536; border-radius: 7px;
}
.K_cfb-menu-toggle__frame span { display: block; width: 18px; height: 2px; background: #252536; }
.K_cfb-mobile-nav { padding: 8px 0 18px; background: #c2c4ff; }
.K_cfb-mobile-nav ul { align-items: stretch; flex-direction: column; gap: 0; }
.K_cfb-mobile-nav li { border-top: 1px solid rgba(20,20,20,.12); }
.K_cfb-mobile-nav a { display: block; padding: 11px 2px; }

/* Shared buttons and elevated cards */
.K_cfb-button {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  padding: 13px 20px; border: 1px solid var(--K-cfb-yellow); border-radius: 8px;
  color: #171717; background: var(--K-cfb-yellow); font-weight: 800;
  box-shadow: 0 5px 0 #a88800, 0 10px 24px rgba(245,205,5,.16);
  transition: transform .2s ease, box-shadow .2s ease;
}
.K_cfb-button:hover { transform: translateY(-3px); box-shadow: 0 8px 0 #a88800, 0 14px 28px rgba(245,205,5,.22); }
.K_cfb-text-link { display: inline-flex; align-items: center; gap: 10px; color: var(--K-cfb-mint); font-weight: 700; }
.K_cfb-text-link:hover { color: #fff; }

/* ⇆ 横向轮播布局：opening */
.K_cfb-opening { margin: 34px auto 112px; }
.K_cfb-opening__slides {
  position: relative; min-height: 500px; overflow: hidden; border: 1px solid var(--K-cfb-violet);
  border-radius: 26px; background: #1c1c1c; box-shadow: var(--K-cfb-shadow), 0 0 20px rgba(193,5,255,.12);
}
.K_cfb-opening__slide {
  display: none; min-height: 500px; grid-template-columns: 1fr 1fr; align-items: center;
  padding: clamp(28px, 6vw, 82px); gap: 5%;
}
.K_cfb-opening__slide.is-active { display: grid; }
.K_cfb-opening__copy { position: relative; z-index: 1; }
.K_cfb-opening__copy h1, .K_cfb-opening__copy h2 {
  margin: 14px 0 20px; font-size: clamp(2.5rem, 3vw, 3rem); line-height: 1.07; letter-spacing: -.04em;
}
.K_cfb-opening__copy p { max-width: 520px; margin: 0 0 28px; color: #c4c4c4; font-size: 1.03rem; }
.K_cfb-opening__visual { position: relative; min-height: 340px; }
.K_cfb-opening__visual::after {
  content: ""; position: absolute; inset: 8% -3% -3% 8%; border: 1px solid var(--K-cfb-mint);
  border-radius: 18px; transform: rotate(4deg); pointer-events: none;
}
.K_cfb-opening__visual img { width: 100%; height: 360px; object-fit: cover; border-radius: 16px; }
.K_cfb-opening__stamp {
  position: absolute; right: -18px; bottom: 18px; z-index: 1; padding: 18px 20px;
  color: #151515; background: var(--K-cfb-mint); border: 1px solid var(--K-cfb-violet);
  box-shadow: 8px 8px 0 rgba(193,5,255,.65);
}
.K_cfb-opening__stamp strong { display: block; font-size: 1.05rem; line-height: 1.15; }
.K_cfb-opening__stamp span { display: block; margin-top: 12px; font-size: .65rem; letter-spacing: .14em; }
.K_cfb-opening__arrow {
  position: absolute; top: 50%; z-index: 2; width: 44px; height: 44px; display: grid; place-items: center;
  border: 1px solid var(--K-cfb-violet); border-radius: 50%; color: #fff;
  background: rgba(20,20,20,.84); transform: translateY(-50%);
}
.K_cfb-opening__arrow--prev { left: 16px; }
.K_cfb-opening__arrow--next { right: 16px; }
.K_cfb-opening__pagination { position: absolute; bottom: 22px; left: 50%; display: flex; gap: 8px; transform: translateX(-50%); }
.K_cfb-opening__pagination button { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 20px; background: #777; }
.K_cfb-opening__pagination button[aria-current="true"] { width: 28px; background: var(--K-cfb-mint); }

/* 左图右文分栏布局：profile */
.K_cfb-profile {
  display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: clamp(36px, 7vw, 100px);
  padding: clamp(26px, 5vw, 64px); border: 1px solid rgba(193,5,255,.65);
  border-radius: var(--K-cfb-radius); background: #1d1d1d; box-shadow: var(--K-cfb-shadow);
}
.K_cfb-profile__image { position: relative; }
.K_cfb-profile__image img { width: 100%; height: 430px; object-fit: cover; border-radius: 12px; }
.K_cfb-profile__image-note {
  position: absolute; bottom: 16px; left: 16px; padding: 8px 12px;
  color: #111; background: var(--K-cfb-mint); font-size: .72rem; font-weight: 800; letter-spacing: .12em;
}
.K_cfb-profile__content h2 { margin: 8px 0 18px; font-size: clamp(2rem, 4vw, 3.2rem); }
.K_cfb-profile__text { color: #c4c4c4; line-height: 1.9; }
.K_cfb-profile__content .K_cfb-text-link { margin-top: 20px; }

/* ⬒ 纵向四网格深浅色布局：facts */
.K_cfb-facts__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.K_cfb-fact-card {
  min-height: 260px; padding: 26px; color: #171717; background: var(--K-cfb-paper);
  border: 1px solid var(--K-cfb-violet); box-shadow: 8px 8px 0 rgba(193,5,255,.22);
}
.K_cfb-fact-card:nth-child(even) { color: #fff; background: #242424; }
.K_cfb-fact-card i { color: #a600d8; font-size: 1.5rem; }
.K_cfb-fact-card:nth-child(even) i { color: var(--K-cfb-mint); }
.K_cfb-fact-card h3 { margin: 18px 0 5px; }
.K_cfb-fact-card strong { color: #8500a8; font-size: 1.1rem; }
.K_cfb-fact-card:nth-child(even) strong { color: var(--K-cfb-mint); }
.K_cfb-fact-card p { margin-bottom: 0; font-size: .91rem; line-height: 1.7; }

/* ◧|◧ 横向深浅色方格中竖线布局：recognition */
.K_cfb-recognition { padding: clamp(28px, 5vw, 58px); border-block: 1px solid rgba(193,5,255,.55); background: rgba(255,255,255,.025); }
.K_cfb-recognition__grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--K-cfb-violet); }
.K_cfb-award { min-height: 240px; padding: 24px; color: #171717; background: var(--K-cfb-paper); }
.K_cfb-award:nth-child(even) { color: #fff; background: #252525; }
.K_cfb-award + .K_cfb-award { border-left: 1px solid var(--K-cfb-violet); }
.K_cfb-award i { color: #9900c6; font-size: 1.5rem; }
.K_cfb-award:nth-child(even) i { color: var(--K-cfb-mint); }
.K_cfb-award h3 { margin: 14px 0 4px; }
.K_cfb-award strong { color: #8500a8; }
.K_cfb-award:nth-child(even) strong { color: var(--K-cfb-mint); }
.K_cfb-award p { margin-bottom: 0; font-size: .88rem; }

/* ▱ 平行四边形卡片布局：offerings */
.K_cfb-offerings__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.K_cfb-offering-card {
  position: relative; overflow: hidden; min-height: 270px; padding: 28px;
  border: 1px solid var(--K-cfb-violet); border-radius: 4px 22px 4px 22px;
  background: #1d1d1d; box-shadow: 9px 9px 0 rgba(193,5,255,.18);
}
.K_cfb-offering-card::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 6px;
  background: var(--K-cfb-mint); transform: skewY(-12deg);
}
.K_cfb-offering-card img { position: absolute; right: 0; bottom: 0; width: 42%; height: 100%; object-fit: cover; opacity: .28; }
.K_cfb-offering-card__content { position: relative; z-index: 1; max-width: 78%; }
.K_cfb-offering-card i { color: var(--K-cfb-mint); font-size: 1.4rem; }
.K_cfb-offering-card h3 { margin: 14px 0 7px; }
.K_cfb-offering-card p { color: #c2c2c2; font-size: .92rem; }

/* 左文右图招聘介绍布局：careers */
.K_cfb-careers {
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px;
  padding: clamp(28px, 5vw, 62px); background: var(--K-cfb-mint); color: #151515;
  border: 1px solid var(--K-cfb-violet); border-radius: 24px; box-shadow: var(--K-cfb-shadow);
}
.K_cfb-careers .K_cfb-eyebrow { color: #4c0060; }
.K_cfb-careers h2 { margin: 8px 0 18px; }
.K_cfb-careers__copy > div { line-height: 1.85; }
.K_cfb-careers .K_cfb-button { margin-top: 22px; }
.K_cfb-careers__visual { position: relative; }
.K_cfb-careers__visual img { width: 100%; height: 390px; object-fit: cover; border-radius: 50% 50% 8px 8px; }
.K_cfb-careers__visual span {
  position: absolute; right: -12px; bottom: 18px; padding: 15px; color: #fff;
  background: var(--K-cfb-ink); border: 1px solid var(--K-cfb-violet); font-size: .8rem; font-weight: 800;
}

/* ⧉ 卡片组合布局：safeguards */
.K_cfb-safeguards__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: center; }
.K_cfb-safety-card {
  min-height: 260px; padding: 25px; color: #171717; background: var(--K-cfb-mint);
  border: 1px solid var(--K-cfb-violet); border-radius: 15px; box-shadow: 10px 10px 0 rgba(193,5,255,.22);
}
.K_cfb-safety-card:nth-child(2) { transform: translateY(16px); }
.K_cfb-safety-card:nth-child(3) { transform: translateY(-12px); }
.K_cfb-safety-card--feature { min-height: 290px; background: #f3f1e9; }
.K_cfb-safety-card i { color: #8100a8; font-size: 1.5rem; }
.K_cfb-safety-card h3 { margin: 16px 0 4px; }
.K_cfb-safety-card strong { color: #710092; }
.K_cfb-safety-card p { font-size: .9rem; }

/* ■▫▫▫ 横向1大深色、3小浅色布局：capacity */
.K_cfb-capacity__grid { display: grid; grid-template-columns: 1.55fr repeat(3, 1fr); gap: 12px; }
.K_cfb-capacity-card {
  min-height: 215px; display: flex; flex-direction: column; justify-content: center;
  padding: 25px; color: #161616; background: var(--K-cfb-paper); border: 1px solid var(--K-cfb-violet);
}
.K_cfb-capacity-card--lead { color: #fff; background: #242424; }
.K_cfb-capacity-card span { font-size: .85rem; font-weight: 700; }
.K_cfb-capacity-card strong { margin: 7px 0; color: #8200a7; font-size: clamp(1.7rem, 3vw, 2.7rem); line-height: 1.2; }
.K_cfb-capacity-card--lead strong { color: var(--K-cfb-mint); }
.K_cfb-capacity-card p { margin-bottom: 0; font-size: .86rem; }

/* ◨◨ 横向浅深色方格布局：languages */
.K_cfb-languages__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.K_cfb-language-card {
  min-height: 245px; padding: 25px; color: #181818; background: var(--K-cfb-paper);
  border: 1px solid var(--K-cfb-violet); border-radius: 0 28px 0 28px;
}
.K_cfb-language-card:nth-child(even) { color: #fff; background: #242424; }
.K_cfb-language-card .fi { display: inline-block; font-size: 2rem; border-radius: 4px; }
.K_cfb-language-card h3 { margin: 18px 0 4px; }
.K_cfb-language-card strong { color: #8400a8; }
.K_cfb-language-card:nth-child(even) strong { color: var(--K-cfb-mint); }
.K_cfb-language-card p { margin-bottom: 0; font-size: .88rem; }

/* ⇆ 横向轮播布局：voices */
.K_cfb-voices {
  display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 35px;
  padding: clamp(28px, 5vw, 58px); border: 1px solid var(--K-cfb-violet);
  border-radius: 24px; background: #202020; box-shadow: var(--K-cfb-shadow);
}
.K_cfb-voices__heading p { color: #bbb; }
.K_cfb-voices__window { overflow: hidden; }
.K_cfb-voices__track { position: relative; min-height: 220px; }
.K_cfb-voice-card {
  display: none; min-height: 220px; align-items: flex-start; gap: 20px;
  padding: 28px; color: #171717; background: var(--K-cfb-mint);
  border: 1px solid var(--K-cfb-violet); border-radius: 16px;
}
.K_cfb-voice-card.is-active { display: flex; }
.K_cfb-voice-card__avatar {
  flex: 0 0 48px; width: 48px; height: 48px; display: grid; place-items: center;
  border-radius: 50%; color: #fff; background: #171717;
}
.K_cfb-voice-card h3 { margin: 0 0 10px; }
.K_cfb-voice-card p { margin: 0; line-height: 1.8; }
.K_cfb-voices__controls { grid-column: 2; display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.K_cfb-voice-count { margin-right: auto; color: #bbb; font-variant-numeric: tabular-nums; }
.K_cfb-voices__controls button {
  width: 40px; height: 40px; border: 1px solid var(--K-cfb-violet); border-radius: 50%;
  color: #fff; background: #151515;
}

/* FAQ 手风琴布局 */
.K_cfb-faq { display: grid; grid-template-columns: .72fr 1.28fr; gap: 7%; }
.K_cfb-faq__intro { position: sticky; top: 30px; align-self: start; }
.K_cfb-faq__intro p { color: #bbb; }
.K_cfb-faq__list details { border-bottom: 1px solid rgba(193,5,255,.55); }
.K_cfb-faq__list summary {
  display: flex; align-items: center; gap: 16px; padding: 20px 4px;
  cursor: pointer; list-style: none; font-weight: 700;
}
.K_cfb-faq__list summary::-webkit-details-marker { display: none; }
.K_cfb-faq__list summary span { color: var(--K-cfb-mint); font-size: .82rem; }
.K_cfb-faq__list summary i { margin-left: auto; color: var(--K-cfb-mint); transition: transform .2s ease; }
.K_cfb-faq__list details[open] summary i { transform: rotate(45deg); }
.K_cfb-faq__list details p { margin: 0 0 22px 42px; color: #bdbdbd; }

/* □□□□ 横向四格布局：journal */
/* 控制显示行数为5 */
.K_cfb-journal__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.K_cfb-journal-card {
  overflow: hidden; border: 1px solid var(--K-cfb-violet); border-radius: 14px;
  background: #1e1e1e; box-shadow: 0 14px 30px rgba(0,0,0,.25);
}
.K_cfb-journal-card__image { display: block; overflow: hidden; }
.K_cfb-journal-card__image img { width: 100%; height: 220px; object-fit: cover; transition: transform .35s ease; }
.K_cfb-journal-card:hover .K_cfb-journal-card__image img { transform: scale(1.04); }
.K_cfb-journal-card__body { padding: 20px; }
.K_cfb-journal-card__tag { color: var(--K-cfb-mint); font-size: .75rem; font-weight: 800; letter-spacing: .08em; }
.K_cfb-journal-card h3 { margin: 9px 0; font-size: 1.1rem; line-height: 1.45; }
.K_cfb-journal-card h3 a:hover { color: var(--K-cfb-mint); }
.K_cfb-line-clamp {
  display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 5;
  color: #b9b9b9; font-size: .9rem;
}
.K_cfb-journal-card time { color: #999; font-size: .8rem; }

/* ◓|◓ 圆形半深浅色中竖线布局：partners */
.K_cfb-partners { padding: clamp(28px, 5vw, 58px); border-radius: 50px 0 50px 0; background: #1d1d1d; }
.K_cfb-partners__grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--K-cfb-violet); }
.K_cfb-partner-card { padding: 22px; color: #171717; background: var(--K-cfb-paper); }
.K_cfb-partner-card:nth-child(even) { color: #fff; background: #262626; }
.K_cfb-partner-card + .K_cfb-partner-card { border-left: 1px solid var(--K-cfb-violet); }
.K_cfb-partner-card img { width: 100%; height: 110px; object-fit: contain; padding: 12px; background: rgba(6,249,168,.15); }
.K_cfb-partner-card h3 { margin: 16px 0 4px; }
.K_cfb-partner-card strong { color: #8100a8; }
.K_cfb-partner-card:nth-child(even) strong { color: var(--K-cfb-mint); }
.K_cfb-partner-card p { margin-bottom: 0; font-size: .86rem; }

/* 联系方式：信息与表单双栏布局 */
.K_cfb-contact {
  display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(30px, 6vw, 80px);
  padding: clamp(28px, 5vw, 62px); border: 1px solid var(--K-cfb-violet);
  border-radius: 20px; background: #202020; box-shadow: var(--K-cfb-shadow);
}
.K_cfb-contact__details > p { max-width: 520px; margin-bottom: 28px; color: #bbb; }
.K_cfb-contact__details > a, .K_cfb-contact__details > div {
  display: flex; align-items: center; gap: 16px; margin: 16px 0;
}
.K_cfb-contact__details > a > i, .K_cfb-contact__details > div > i {
  width: 46px; height: 46px; display: grid; place-items: center;
  color: #171717; background: var(--K-cfb-mint); border-radius: 50%;
}
.K_cfb-contact__details span { display: grid; }
.K_cfb-contact__details small { color: #aaa; }
.K_cfb-contact__form { padding: 26px; border: 1px solid var(--K-cfb-violet); border-radius: 14px; background: #171717; }
.K_cfb-contact__form h3 { margin: 0 0 18px; font-size: 1.35rem; }
.K_cfb-contact__form label { display: block; margin: 12px 0 5px; color: #ccc; font-size: .88rem; }
.K_cfb-contact__form input, .K_cfb-contact__form textarea {
  width: 100%; padding: 12px 14px; color: #fff; background: #242424;
  border: 1px solid #555; border-radius: 7px;
}
.K_cfb-contact__form input:focus, .K_cfb-contact__form textarea:focus { outline: 2px solid var(--K-cfb-mint); border-color: transparent; }
.K_cfb-contact__form textarea { resize: vertical; }
.K_cmr-form-feedback { min-height: 1.4em; color: var(--K-cfb-mint); font-size: .88rem; }

/* Footer */
.K_cfb-footer { margin-top: 80px; padding: 58px 0 20px; border-top: 1px solid rgba(193,5,255,.65); background: #101010; }
.K_cfb-footer__main { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 48px; }
.K_cfb-footer__brand { display: inline-flex; align-items: center; gap: 12px; }
.K_cfb-footer__brand img { width: 54px; height: 54px; object-fit: contain; }
.K_cfb-footer__brand strong { font-size: 1.1rem; }
.K_cfb-footer__identity p { max-width: 460px; color: #aaa; font-size: .9rem; }
.K_cfb-footer__links h2, .K_cfb-footer__contact h2 { margin: 0 0 14px; font-size: 1rem; }
.K_cfb-footer__links ul { display: grid; grid-template-columns: 1fr 1fr; gap: 9px 16px; list-style: none; padding: 0; margin: 0; }
.K_cfb-footer__links a { color: #bbb; font-size: .9rem; }
.K_cfb-footer__links a:hover, .K_cfb-footer__contact a:hover { color: var(--K-cfb-mint); }
.K_cfb-footer__contact { display: grid; gap: 11px; color: #bbb; font-style: normal; font-size: .9rem; }
.K_cfb-footer__contact h2 { color: #fff; }
.K_cfb-footer__contact span { display: flex; align-items: flex-start; gap: 10px; }
.K_cfb-footer__contact i { width: 17px; margin-top: 5px; color: var(--K-cfb-mint); }
.K_cfb-footer__legal {
  display: flex; justify-content: space-between; gap: 15px; margin-top: 34px; padding-top: 18px;
  border-top: 1px solid #333; color: #888; font-size: .8rem;
}
.K_cfb-footer__legal a { color: #bbb; }
.K_cfb-back-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 30; display: flex; align-items: center; gap: 8px;
  padding: 12px 15px; border: 1px solid var(--K-cfb-violet); border-radius: 30px;
  color: #141414; background: var(--K-cfb-yellow); box-shadow: 0 8px 24px rgba(0,0,0,.3); font-weight: 800;
}
.K_cfb-back-top[hidden] { display: none; }

/* Responsive */
@media (max-width: 1000px) {
  .K_cfb-facts__grid, .K_cfb-recognition__grid, .K_cfb-safeguards__grid,
  .K_cfb-languages__grid, .K_cfb-partners__grid { grid-template-columns: repeat(2, 1fr); }
  .K_cfb-award:nth-child(3) { border-left: 0; }
  .K_cfb-award:nth-child(n+3) { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-capacity__grid { grid-template-columns: repeat(2, 1fr); }
  .K_cfb-capacity-card--lead { grid-row: span 2; }
  .K_cfb-offerings__grid, .K_cfb-journal__grid { grid-template-columns: repeat(2, 1fr); }
  .K_cfb-footer__main { grid-template-columns: 1fr 1fr; }
  .K_cfb-footer__identity { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  :root { --K-cfb-shell: 92%; }
  .K_cfb-header__top { min-height: 74px; }
  .K_cfb-brand__link img { width: 44px; height: 44px; }
  .K_cfb-brand__wordmark small { display: none; }
  .K_cfb-hotline__icon { width: 36px; height: 36px; }
  .K_cfb-hotline__copy small { font-size: .68rem; }
  .K_cfb-hotline__copy strong { font-size: .82rem; }
  .K_cfb-nav-wrap { min-height: 50px; justify-content: flex-end; }
  .K_cfb-desktop-nav { display: none; }
  .K_cfb-menu-toggle { display: block; }
  .K_cfb-mobile-nav { display: block; }
  .K_cfb-opening { margin: 22px auto 76px; }
  .K_cfb-opening__slides, .K_cfb-opening__slide { min-height: 0; }
  .K_cfb-opening__slide { grid-template-columns: 1fr; gap: 28px; padding: 32px 24px 60px; }
  .K_cfb-opening__copy h1, .K_cfb-opening__copy h2 { font-size: clamp(2.3rem, 3vw, 3.4rem); }
  .K_cfb-opening__visual { min-height: 245px; margin: 0 8px 12px 0; }
  .K_cfb-opening__visual img { height: 255px; }
  .K_cfb-opening__stamp { right: -8px; bottom: 10px; padding: 12px; }
  .K_cfb-opening__arrow { top: auto; bottom: 13px; width: 36px; height: 36px; transform: none; }
  .K_cfb-opening__arrow--prev { left: 18px; }
  .K_cfb-opening__arrow--next { right: 18px; }
  .K_cfb-opening__pagination { bottom: 26px; }
  .K_cfb-section { margin-bottom: 76px; }
  .K_cfb-section-heading--row { align-items: flex-start; flex-direction: column; gap: 12px; }
  .K_cfb-profile, .K_cfb-careers, .K_cfb-contact { grid-template-columns: 1fr; }
  .K_cfb-profile { gap: 28px; padding: 22px; }
  .K_cfb-profile__image img { height: 280px; }
  .K_cfb-facts__grid, .K_cfb-recognition__grid, .K_cfb-safeguards__grid,
  .K_cfb-languages__grid, .K_cfb-partners__grid { grid-template-columns: 1fr 1fr; }
  .K_cfb-fact-card { min-height: 230px; padding: 18px; }
  .K_cfb-award { min-height: 230px; padding: 18px; }
  .K_cfb-award + .K_cfb-award { border-left: 0; }
  .K_cfb-award:nth-child(even) { border-left: 1px solid var(--K-cfb-violet); }
  .K_cfb-award:nth-child(n+3) { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-offerings__grid, .K_cfb-journal__grid { grid-template-columns: 1fr; }
  .K_cfb-offering-card { min-height: 230px; }
  .K_cfb-careers { gap: 28px; }
  .K_cfb-careers__visual img { height: 280px; }
  .K_cfb-safety-card, .K_cfb-safety-card--feature { min-height: 230px; padding: 18px; }
  .K_cfb-safety-card:nth-child(2), .K_cfb-safety-card:nth-child(3) { transform: none; }
  .K_cfb-capacity__grid { grid-template-columns: 1fr 1fr; }
  .K_cfb-capacity-card { min-height: 180px; padding: 18px; }
  .K_cfb-capacity-card--lead { grid-row: auto; }
  .K_cfb-language-card { min-height: 230px; padding: 18px; }
  .K_cfb-voices { grid-template-columns: 1fr; gap: 22px; padding: 24px; }
  .K_cfb-voices__controls { grid-column: 1; }
  .K_cfb-voice-card { min-height: 200px; padding: 20px; }
  .K_cfb-faq { grid-template-columns: 1fr; gap: 18px; }
  .K_cfb-faq__intro { position: static; }
  .K_cfb-partners { padding: 24px; border-radius: 28px 0; }
  .K_cfb-partner-card { padding: 15px; }
  .K_cfb-partner-card img { height: 80px; }
  .K_cfb-contact { gap: 28px; padding: 24px; }
  .K_cfb-footer__main { grid-template-columns: 1fr; gap: 28px; }
  .K_cfb-footer__identity { grid-column: auto; }
  .K_cfb-footer__legal { flex-direction: column; gap: 4px; }
  .K_cfb-back-top { right: 14px; bottom: 14px; padding: 11px 13px; }
}
@media (max-width: 420px) {
  .K_cfb-hotline__copy strong { max-width: 112px; overflow-wrap: anywhere; }
  .K_cfb-facts__grid, .K_cfb-recognition__grid, .K_cfb-safeguards__grid,
  .K_cfb-languages__grid, .K_cfb-partners__grid, .K_cfb-capacity__grid { grid-template-columns: 1fr; }
  .K_cfb-capacity-card--lead { grid-row: auto; }
  .K_cfb-award:nth-child(even) { border-left: 0; }
  .K_cfb-award + .K_cfb-award { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-fact-card, .K_cfb-award, .K_cfb-safety-card { min-height: auto; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}
/* =========================
   Contact page layouts
   ========================= */

/* ◫ 横向中分中竖线布局：联系标题 */
.K_cfb-contact-mast {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  min-height: 360px;
  margin: 36px auto 90px;
  border: 1px solid var(--K-cfb-violet);
  background: #1e1e1e;
}
.K_cfb-contact-mast__copy { padding: clamp(28px, 6vw, 76px); }
.K_cfb-contact-mast__copy h1 { margin: 14px 0; font-size: clamp(2.7rem, 3vw, 3.2rem); line-height: 1.05; }
.K_cfb-contact-mast__copy p { max-width: 600px; color: #bbb; }
.K_cfb-contact-mast__aside {
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center;
  gap: 18px; padding: 40px; border-left: 1px solid var(--K-cfb-violet);
  color: #181818; background: var(--K-cfb-mint);
}
.K_cfb-contact-mast__index { font-size: .75rem; font-weight: 800; letter-spacing: .15em; }
.K_cfb-contact-mast__line { width: 100%; height: 1px; background: rgba(20,20,20,.35); }
.K_cfb-contact-shortcuts__grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--K-cfb-violet); }
.K_cfb-shortcut-card {
  position: relative; min-height: 290px; padding: 24px; color: #171717; background: var(--K-cfb-paper);
}
.K_cfb-shortcut-card:nth-child(even) { color: #fff; background: #242424; }
.K_cfb-shortcut-card + .K_cfb-shortcut-card { border-left: 1px solid var(--K-cfb-violet); }
.K_cfb-shortcut-card__number { position: absolute; top: 15px; right: 17px; opacity: .45; font-size: .76rem; }
.K_cfb-shortcut-card > i { margin-top: 24px; color: #a000cc; font-size: 1.35rem; }
.K_cfb-shortcut-card:nth-child(even) > i { color: var(--K-cfb-mint); }
.K_cfb-shortcut-card small { display: block; margin-top: 16px; font-size: .65rem; letter-spacing: .14em; }
.K_cfb-shortcut-card h3 { margin: 4px 0; }
.K_cfb-shortcut-card strong { display: block; overflow-wrap: anywhere; color: #8300a7; font-size: .9rem; }
.K_cfb-shortcut-card:nth-child(even) strong { color: var(--K-cfb-mint); }
.K_cfb-shortcut-card > span:last-child { display: block; margin-top: 12px; color: #aaa; font-size: .82rem; }
.K_cfb-contact-methods { display: grid; grid-template-columns: .72fr 1.28fr; gap: 8%; }
.K_cfb-contact-methods__intro { align-self: start; }
.K_cfb-contact-methods__intro h2, .K_cfb-message__side h2 { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.12; }
.K_cfb-contact-methods__intro p, .K_cfb-message__side > p { color: #bbb; }
.K_cfb-contact-methods__note { margin-top: 28px; padding: 15px; color: #181818; background: var(--K-cfb-yellow); font-size: .86rem; }
.K_cfb-contact-methods__note i { margin-right: 8px; }
.K_cfb-contact-methods__list details { border-top: 1px solid rgba(193,5,255,.65); }
.K_cfb-contact-methods__list details:last-child { border-bottom: 1px solid rgba(193,5,255,.65); }
.K_cfb-contact-methods__list summary { display: flex; align-items: center; gap: 20px; padding: 20px 5px; cursor: pointer; list-style: none; }
.K_cfb-contact-methods__list summary::-webkit-details-marker { display: none; }
.K_cfb-contact-methods__list summary > span { color: var(--K-cfb-mint); font-size: .8rem; }
.K_cfb-contact-methods__list summary > strong { font-size: 1.08rem; }
.K_cfb-contact-methods__list summary > i { margin-left: auto; color: var(--K-cfb-mint); transition: transform .2s ease; }
.K_cfb-contact-methods__list details[open] summary > i { transform: rotate(45deg); }
.K_cfb-method-copy { padding: 0 30px 22px 48px; color: #bbb; }
.K_cfb-method-copy a { color: var(--K-cfb-mint); }
.K_cfb-message {
  display: grid; grid-template-columns: .82fr 1.18fr; gap: 7%;
  padding: clamp(26px, 5vw, 60px); border: 1px solid var(--K-cfb-violet);
  background: #1d1d1d; box-shadow: var(--K-cfb-shadow);
}
.K_cfb-message__details { display: grid; gap: 16px; margin-top: 30px; }
.K_cfb-message__details span { display: flex; align-items: center; gap: 12px; overflow-wrap: anywhere; }
.K_cfb-message__details i { width: 38px; height: 38px; display: grid; place-items: center; flex: 0 0 38px; color: #141414; background: var(--K-cfb-mint); border-radius: 50%; }
.K_cfb-message__form { padding: 26px; border: 1px solid rgba(193,5,255,.7); background: #151515; }
.K_cfb-form-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 18px; }
.K_cfb-form-heading span { color: var(--K-cfb-mint); font-size: .7rem; letter-spacing: .12em; }
.K_cfb-form-heading strong { font-size: 1.2rem; }
.K_cfb-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.K_cfb-message__form label { display: block; margin: 13px 0 6px; color: #ccc; font-size: .86rem; }
.K_cfb-message__form input, .K_cfb-message__form select, .K_cfb-message__form textarea {
  width: 100%; padding: 12px 14px; color: #fff; background: #242424;
  border: 1px solid #555; border-radius: 6px;
}
.K_cfb-message__form input:focus, .K_cfb-message__form select:focus, .K_cfb-message__form textarea:focus {
  outline: 2px solid var(--K-cfb-mint); border-color: transparent;
}
.K_cfb-message__form textarea { resize: vertical; }
.K_cfb-form-submit { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.K_cfb-form-submit small { color: #999; font-size: .74rem; }

/* =========================
   APP page layouts
   ========================= */

/* ◧|◨ 分栏下载主视觉 */
.K_cfb-app-cover {
  display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 40px;
  min-height: 580px; margin: 36px auto 110px; padding: clamp(28px, 6vw, 76px);
  border: 1px solid var(--K-cfb-violet); background: #1c1c1c;
}
.K_cfb-app-cover__copy h1 { margin: 22px 0 16px; font-size: clamp(2.5rem, 3vw, 3.8rem); line-height: 1.08; }
.K_cfb-app-cover__copy > p { max-width: 590px; color: #bbb; }
.K_cfb-app-badge { display: flex; align-items: center; gap: 12px; margin-top: 20px; }
.K_cfb-app-badge__icon { width: 48px; height: 48px; display: grid; place-items: center; color: #171717; background: var(--K-cfb-mint); border: 1px solid var(--K-cfb-violet); border-radius: 13px; }
.K_cfb-app-badge > span:last-child { display: grid; }
.K_cfb-app-badge small { color: #aaa; }
.K_cfb-app-cover__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.K_cfb-app-cover__actions > span { color: #aaa; font-size: .82rem; }
.K_cfb-app-cover__actions > span i { color: var(--K-cfb-mint); }
.K_cfb-app-cover__stats { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 42px; }
.K_cfb-app-cover__stats div { display: grid; }
.K_cfb-app-cover__stats strong { color: var(--K-cfb-mint); font-size: 1.35rem; }
.K_cfb-app-cover__stats span { color: #aaa; font-size: .78rem; }
.K_cfb-app-cover__device { position: relative; min-height: 450px; display: grid; place-items: center; overflow: hidden; }
.K_cfb-phone-frame { position: relative; z-index: 1; width: 230px; height: 430px; padding: 12px; border: 2px solid var(--K-cfb-mint); border-radius: 34px; background: #101010; box-shadow: 18px 18px 0 rgba(193,5,255,.22), 0 0 35px rgba(6,249,168,.14); transform: rotate(5deg); }
.K_cfb-phone-frame__speaker { width: 54px; height: 5px; margin: 4px auto 16px; border-radius: 5px; background: #777; }
.K_cfb-phone-screen { height: calc(100% - 25px); padding: 18px 13px; color: #171717; background: var(--K-cfb-paper); border-radius: 23px; }
.K_cfb-phone-screen__label { color: #79009a; font-size: .62rem; font-weight: 800; letter-spacing: .13em; }
.K_cfb-phone-screen__score { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px; margin: 28px 0 18px; text-align: center; }
.K_cfb-phone-screen__score span { font-size: .58rem; font-weight: 800; }
.K_cfb-phone-screen__score strong { font-size: 1.45rem; }
.K_cfb-phone-screen__progress { height: 6px; background: #ccc; border-radius: 9px; }
.K_cfb-phone-screen__progress i { display: block; width: 68%; height: 100%; background: #a000d1; border-radius: inherit; }
.K_cfb-phone-screen__rows { display: grid; gap: 10px; margin-top: 26px; }
.K_cfb-phone-screen__rows span { display: flex; justify-content: space-between; gap: 4px; padding: 9px 7px; background: #fff; font-size: .61rem; }
.K_cfb-phone-screen__rows b { color: #77009a; }
.K_cfb-app-cover__orbit { position: absolute; padding: 9px 12px; color: #161616; background: var(--K-cfb-yellow); font-size: .67rem; font-weight: 800; }
.K_cfb-app-cover__orbit--one { top: 17%; right: 0; transform: rotate(5deg); }
.K_cfb-app-cover__orbit--two { bottom: 13%; left: 0; color: #161616; background: var(--K-cfb-mint); transform: rotate(-5deg); }

/* ▫■|■▫ 环绕式应用优势布局 */
.K_cfb-app-experience__layout { display: grid; grid-template-columns: 1fr 1.3fr 1fr; gap: 14px; align-items: stretch; }
.K_cfb-app-feature, .K_cfb-app-experience__center { min-height: 210px; padding: 24px; border: 1px solid var(--K-cfb-violet); }
.K_cfb-app-feature { background: #222; }
.K_cfb-app-feature:nth-child(2) { background: var(--K-cfb-paper); color: #171717; }
.K_cfb-app-feature i { color: var(--K-cfb-mint); font-size: 1.35rem; }
.K_cfb-app-feature:nth-child(2) i { color: #8c00af; }
.K_cfb-app-feature h3 { margin: 14px 0 6px; }
.K_cfb-app-feature p { margin-bottom: 0; color: #aaa; font-size: .88rem; }
.K_cfb-app-feature:nth-child(2) p { color: #555; }
.K_cfb-app-experience__center { grid-column: 2; grid-row: 1 / span 2; display: flex; flex-direction: column; justify-content: center; text-align: center; color: #171717; background: var(--K-cfb-mint); }
.K_cfb-app-experience__center > span { font-size: .72rem; font-weight: 800; letter-spacing: .16em; }
.K_cfb-app-experience__center strong { margin: 18px 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.05; }
.K_cfb-app-experience__center p { margin: 0; }
.K_cfb-app-feature:nth-last-child(2) { grid-column: 1; }
.K_cfb-app-feature:last-child { grid-column: 3; }

/* ⨁ 四象限圆形分区功能盘 */
.K_cfb-app-functions { padding: 55px; overflow: hidden; background: #1e1e1e; border: 1px solid var(--K-cfb-violet); }
.K_cfb-app-functions__heading { max-width: 600px; margin-bottom: 25px; }
.K_cfb-app-functions__heading h2 { font-size: clamp(2rem, 4vw, 3.1rem); }
.K_cfb-app-functions__wheel { display: grid; grid-template-columns: 1fr 1fr; position: relative; max-width: 900px; margin: auto; }
.K_cfb-app-function { min-height: 210px; padding: 30px; border: 1px solid rgba(193,5,255,.5); }
.K_cfb-app-function:nth-child(1), .K_cfb-app-function:nth-child(4) { background: #252525; }
.K_cfb-app-function:nth-child(2), .K_cfb-app-function:nth-child(3) { color: #171717; background: var(--K-cfb-paper); }
.K_cfb-app-function > span { color: #9e00c9; font-size: .68rem; font-weight: 800; letter-spacing: .12em; }
.K_cfb-app-function h3 { margin: 9px 0 5px; }
.K_cfb-app-function p { max-width: 300px; margin: 0; color: #aaa; font-size: .87rem; }
.K_cfb-app-function:nth-child(2) p, .K_cfb-app-function:nth-child(3) p { color: #555; }
.K_cfb-app-functions__core { position: absolute; top: 50%; left: 50%; width: 145px; height: 145px; display: grid; place-content: center; text-align: center; color: #171717; background: var(--K-cfb-mint); border: 5px solid #1e1e1e; border-radius: 50%; transform: translate(-50%, -50%); }
.K_cfb-app-functions__core i { font-size: 1.3rem; }
.K_cfb-app-functions__core strong { font-size: .86rem; line-height: 1.25; }

/* ◫ 对照表布局 */
.K_cfb-compare-table-wrap { overflow-x: auto; border: 1px solid var(--K-cfb-violet); }
.K_cfb-compare-table { width: 100%; min-width: 560px; border-collapse: collapse; background: #1c1c1c; }
.K_cfb-compare-table th, .K_cfb-compare-table td { padding: 16px 20px; border-bottom: 1px solid #383838; text-align: left; }
.K_cfb-compare-table thead th { color: #161616; background: var(--K-cfb-mint); }
.K_cfb-compare-table tbody th { color: #ddd; }
.K_cfb-compare-table td { color: #bbb; }
.K_cfb-compare-table td i { margin-right: 6px; color: var(--K-cfb-mint); }

/* ⇢ 版本时间轨迹 */
.K_cfb-app-updates {
    display: grid;
    grid-template-columns: .75fr 1.25fr;
    gap: 7%;
    align-items: start;
}

.K_cfb-app-updates__intro {
    position: sticky;
    top: 100px;
}

.K_cfb-app-updates__intro p {
    color: #bbb;
    line-height: 1.8;
}

/* 更新列表 */
.K_cfb-update-rail {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    border: 0;
}

/* 单个卡片 */
.K_cfb-update {
    position: relative;
    display: block;
    padding: 24px 22px 22px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    transition:
        transform .25s ease,
        border-color .25s ease,
        background .25s ease;
}

.K_cfb-update:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.065);
    border-color: rgba(255, 255, 255, 0.16);
}

/* 原来的圆点改成小标签 */
.K_cfb-update__marker {
    position: static;
    width: auto;
    height: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px 9px;
    margin-bottom: 16px;
    color: #171717;
    background: var(--K-cfb-mint);
    border-radius: 999px;
    font-size: .62rem;
    font-weight: 800;
    line-height: 1;
}

/* 时间 */
.K_cfb-update time {
    display: block;
    margin-bottom: 7px;
    color: var(--K-cfb-mint);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .04em;
}

/* 标题 */
.K_cfb-update h3 {
    margin: 0 0 12px;
    font-size: 1.05rem;
    line-height: 1.4;
}

/* 内容 */
.K_cfb-update ul {
    margin: 0;
    padding-left: 17px;
    color: #aaa;
    font-size: .85rem;
    line-height: 1.7;
}

.K_cfb-update li + li {
    margin-top: 5px;
}


/* =========================
   平板
========================= */

@media (max-width: 900px) {

    .K_cfb-app-updates {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .K_cfb-app-updates__intro {
        position: static;
    }

    .K_cfb-update-rail {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}


/* =========================
   手机
========================= */

@media (max-width: 600px) {

    .K_cfb-update-rail {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .K_cfb-update {
        padding: 20px 18px;
        border-radius: 14px;
    }
}

/* 下载 FAQ */
.K_cfb-app-faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: 8%; }
.K_cfb-app-faq__title p { color: #aaa; }
.K_cfb-app-faq__items details { border-top: 1px solid rgba(193,5,255,.55); }
.K_cfb-app-faq__items details:last-child { border-bottom: 1px solid rgba(193,5,255,.55); }
.K_cfb-app-faq__items summary { display: flex; justify-content: space-between; gap: 15px; padding: 17px 0; cursor: pointer; list-style: none; font-weight: 700; }
.K_cfb-app-faq__items summary::-webkit-details-marker { display: none; }
.K_cfb-app-faq__items summary i { color: var(--K-cfb-mint); transition: transform .2s; }
.K_cfb-app-faq__items details[open] summary i { transform: rotate(45deg); }
.K_cfb-app-faq__items details p { margin: 0 0 18px; color: #aaa; }

/* ⬒|⬒ 安装步骤竖向网格 */
.K_cfb-install-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.K_cfb-install-column { padding: 25px; border: 1px solid var(--K-cfb-violet); background: #202020; }
.K_cfb-install-column h3 { display: flex; align-items: center; gap: 10px; margin-top: 0; }
.K_cfb-install-column h3 i { color: var(--K-cfb-mint); font-size: 1.35rem; }
.K_cfb-install-column ol { list-style: none; padding: 0; margin: 0; }
.K_cfb-install-column li { display: grid; grid-template-columns: 40px 1fr; gap: 13px; padding: 15px 0; border-top: 1px solid #383838; }
.K_cfb-install-column li > span { color: var(--K-cfb-mint); font-weight: 800; }
.K_cfb-install-column li p { margin: 3px 0 0; color: #aaa; font-size: .85rem; }

/* 六列服务保障 */
.K_cfb-app-trust__grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--K-cfb-violet); }
.K_cfb-app-trust__grid > div { min-height: 180px; padding: 24px; border-right: 1px solid var(--K-cfb-violet); border-bottom: 1px solid var(--K-cfb-violet); }
.K_cfb-app-trust__grid > div:nth-child(even) { color: #171717; background: var(--K-cfb-paper); }
.K_cfb-app-trust__grid i { color: var(--K-cfb-mint); font-size: 1.3rem; }
.K_cfb-app-trust__grid > div:nth-child(even) i { color: #8800ad; }
.K_cfb-app-trust__grid h3 { margin: 11px 0 5px; }
.K_cfb-app-trust__grid p { margin: 0; color: #aaa; font-size: .86rem; }
.K_cfb-app-trust__grid > div:nth-child(even) p { color: #555; }

/* ◒ 半圆行动区 */
.K_cfb-app-cta { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; padding: 38px; color: #171717; background: var(--K-cfb-mint); border: 1px solid var(--K-cfb-violet); border-radius: 90px 0 90px 0; }
.K_cfb-app-cta__mark { width: 78px; height: 78px; display: grid; place-content: center; text-align: center; border: 1px solid var(--K-cfb-violet); border-radius: 50%; }
.K_cfb-app-cta__mark i { font-size: 1.25rem; }
.K_cfb-app-cta__mark span { font-size: .52rem; font-weight: 800; }
.K_cfb-app-cta h2 { margin: 7px 0; font-size: clamp(1.6rem, 3vw, 2.6rem); }
.K_cfb-app-cta p { margin: 0; }

/* =========================
   List page layouts
   ========================= */

/* ▱ 斜切栏目标题区 */
.K_cfb-list-mast {
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  min-height: 300px; margin: 36px auto 20px; padding: clamp(28px, 6vw, 70px);
  border: 1px solid var(--K-cfb-violet); background: linear-gradient(115deg, #202020 0 67%, var(--K-cfb-mint) 67%);
}
.K_cfb-list-mast h1 { margin: 10px 0; font-size: clamp(2.8rem, 3vw, 3.6rem); line-height: 1; }
.K_cfb-list-mast__copy p { max-width: 580px; color: #bbb; }
.K_cfb-list-mast__graphic { width: 180px; display: grid; justify-items: center; gap: 5px; color: #171717; }
.K_cfb-list-mast__graphic span { font-size: .7rem; font-weight: 800; letter-spacing: .16em; }
.K_cfb-list-mast__graphic strong { font-size: 5.2rem; line-height: 1; }
.K_cfb-list-mast__graphic i { font-size: 1.4rem; }
.K_cfb-list-crumb, .K_cfb-article-crumb { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; padding: 17px 0 30px; color: #aaa; font-size: .86rem; }
.K_cfb-list-crumb > i, .K_cfb-article-crumb > i { color: var(--K-cfb-mint); font-size: .7rem; }
.K_cfb-list-crumb a:hover, .K_cfb-article-crumb a:hover { color: var(--K-cfb-mint); }
.K_cfb-list-content { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 42px; align-items: start; }
.K_cfb-list-feed__heading { display: flex; align-items: end; justify-content: space-between; gap: 15px; margin-bottom: 24px; }
.K_cfb-list-feed__heading h2 { margin: 4px 0 0; font-size: 2rem; }
.K_cfb-list-feed__count { color: var(--K-cfb-mint); font-size: .7rem; letter-spacing: .12em; }
.K_cfb-list-articles { display: grid; gap: 18px; }
.K_cfb-list-card { display: grid; grid-template-columns: 240px 1fr; min-height: 205px; border: 1px solid rgba(193,5,255,.6); background: #1d1d1d; }
.K_cfb-list-card__image { position: relative; overflow: hidden; min-height: 205px; }
.K_cfb-list-card__image img { width: 100%; height: 100%; min-height: 205px; object-fit: cover; transition: transform .3s; }
.K_cfb-list-card:hover .K_cfb-list-card__image img { transform: scale(1.04); }
.K_cfb-list-card__index { position: absolute; top: 10px; left: 10px; padding: 5px 9px; color: #171717; background: var(--K-cfb-mint); font-weight: 800; }
.K_cfb-list-card__body { display: flex; flex-direction: column; padding: 19px 22px; }
.K_cfb-list-card__category { color: var(--K-cfb-mint); font-size: .72rem; }
.K_cfb-list-card h3 { margin: 7px 0; font-size: 1.15rem; line-height: 1.45; }
.K_cfb-list-card h3 a:hover { color: var(--K-cfb-mint); }
.K_cfb-list-card__summary {
  display: -webkit-box; overflow: hidden; margin: 0; color: #aaa; font-size: .86rem;
  line-height: 1.65; -webkit-box-orient: vertical; -webkit-line-clamp: 5;
}
.K_cfb-list-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 12px; color: #888; font-size: .76rem; }
.K_cfb-list-card__meta a { color: var(--K-cfb-mint); }
.K_cfb-pagination { margin-top: 30px; overflow-x: auto; }
.K_cfb-pagination > div { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.K_cfb-pagination a, .K_cfb-pagination span { min-width: 38px; padding: 8px 11px; border: 1px solid #555; text-align: center; }
.K_cfb-pagination .active, .K_cfb-pagination a:hover { color: #171717; background: var(--K-cfb-mint); border-color: var(--K-cfb-violet); }
.K_cfb-list-rail { display: grid; gap: 18px; }
.K_cfb-list-search, .K_cfb-list-navigation, .K_cfb-list-note { padding: 22px; border: 1px solid var(--K-cfb-violet); background: #1e1e1e; }
.K_cfb-list-search h2, .K_cfb-list-navigation h2, .K_cfb-list-note h2 { margin: 7px 0 14px; font-size: 1.2rem; }
.K_cfb-list-search form, .K_cfb-article-tools form { display: flex; border: 1px solid #555; }
.K_cfb-list-search input, .K_cfb-article-tools input { min-width: 0; width: 100%; padding: 11px; color: #fff; background: #151515; border: 0; }
.K_cfb-list-search button, .K_cfb-article-tools form button { width: 46px; flex: 0 0 46px; color: #171717; background: var(--K-cfb-mint); border: 0; }
.K_cfb-list-navigation ul, .K_cfb-article-tools__nav ul { list-style: none; padding: 0; margin: 0; }
.K_cfb-list-navigation li, .K_cfb-article-tools__nav li { border-top: 1px solid #3a3a3a; }
.K_cfb-list-navigation li a, .K_cfb-article-tools__nav li a { display: flex; justify-content: space-between; gap: 10px; padding: 11px 0; color: #ccc; }
.K_cfb-list-navigation li a:hover, .K_cfb-article-tools__nav li a:hover { color: var(--K-cfb-mint); }
.K_cfb-list-note { color: #171717; background: var(--K-cfb-mint); }
.K_cfb-list-note > i { font-size: 1.4rem; }
.K_cfb-list-note p { font-size: .87rem; }
.K_cfb-list-note a { font-weight: 800; }

/* =========================
   Show/article page layouts
   ========================= */

/* ◇ 纵向刊物封面标题 */
.K_cfb-article-mast { max-width: 950px; margin: 48px auto 22px; text-align: center; }
.K_cfb-article-mast__eyebrow { display: flex; justify-content: center; gap: 14px; color: var(--K-cfb-mint); font-size: .74rem; letter-spacing: .12em; }
.K_cfb-article-mast h1 { margin: 23px 0 16px; font-size: clamp(2.3rem, 3.5vw, 3.8rem); line-height: 1.13; }
.K_cfb-article-mast > p { max-width: 760px; margin: 0 auto; color: #aaa; font-size: 1.04rem; }
.K_cfb-article-mast__rule { display: flex; justify-content: center; gap: 6px; margin-top: 28px; }
.K_cfb-article-mast__rule span { width: 34px; height: 3px; background: var(--K-cfb-mint); }
.K_cfb-article-mast__rule span:nth-child(2) { width: 12px; background: var(--K-cfb-violet); }
.K_cfb-article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 44px; align-items: start; }
.K_cfb-article { min-width: 0; padding: clamp(22px, 4vw, 48px); border: 1px solid rgba(193,5,255,.65); background: #1c1c1c; }
.K_cfb-article__meta { display: flex; flex-wrap: wrap; gap: 12px 22px; padding-bottom: 20px; border-bottom: 1px solid #383838; color: #aaa; font-size: .8rem; }
.K_cfb-article__meta i { margin-right: 6px; color: var(--K-cfb-mint); }
.K_cfb-article__body { min-height: 320px; padding: 28px 0; color: #d1d1d1; line-height: 2; overflow-wrap: anywhere; }
.K_cfb-article__body img { height: auto; margin: 24px auto; border: 1px solid rgba(193,5,255,.55); }
.K_cfb-article__body h2, .K_cfb-article__body h3 { color: #fff; line-height: 1.35; }
.K_cfb-article__pagination { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 20px 0; border-top: 1px solid #383838; }
.K_cfb-article__pagination a { min-width: 0; padding: 14px; border: 1px solid #4c4c4c; }
.K_cfb-article__pagination a:last-child { text-align: right; }
.K_cfb-article__pagination small { display: block; color: var(--K-cfb-mint); }
.K_cfb-article__pagination strong { display: block; overflow: hidden; margin-top: 5px; text-overflow: ellipsis; white-space: nowrap; font-size: .86rem; }
.K_cfb-article__share { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0; border-top: 1px solid #383838; }
.K_cfb-article__share h2 { margin: 0; font-size: 1rem; }
.K_cfb-article__share p { margin: 3px 0 0; color: #999; font-size: .8rem; }
.K_cfb-article__share-actions { display: flex; gap: 8px; }
.K_cfb-article__share-actions a, .K_cfb-article__share-actions button { width: 40px; height: 40px; display: grid; place-items: center; color: #171717; background: var(--K-cfb-mint); border: 1px solid var(--K-cfb-violet); border-radius: 50%; }
.K_cfb-copy-feedback { position: absolute; right: 0; bottom: -16px; color: var(--K-cfb-mint) !important; }
.K_cfb-article__back { display: inline-flex; gap: 9px; align-items: center; margin-top: 20px; color: var(--K-cfb-mint); }
.K_cfb-article-aside { position: sticky; top: 22px; padding: 21px; border: 1px solid var(--K-cfb-violet); background: #202020; }
.K_cfb-article-aside__label h2 { margin: 4px 0 16px; }
.K_cfb-related-card { display: grid; grid-template-columns: 86px 1fr; gap: 12px; padding: 14px 0; border-top: 1px solid #393939; }
.K_cfb-related-card > a img { width: 86px; height: 76px; object-fit: cover; }
.K_cfb-related-card > div { min-width: 0; }
.K_cfb-related-card__number { color: var(--K-cfb-mint); font-size: .7rem; }
.K_cfb-related-card h3 { margin: 3px 0; font-size: .83rem; line-height: 1.45; }
.K_cfb-related-card h3 a:hover { color: var(--K-cfb-mint); }
.K_cfb-related-card time { color: #888; font-size: .7rem; }
.K_cfb-article-aside__more { display: flex; justify-content: space-between; margin-top: 12px; padding-top: 14px; border-top: 1px solid #393939; color: var(--K-cfb-mint); font-size: .85rem; }
.K_cfb-article-tools { display: grid; grid-template-columns: .85fr 1.15fr; gap: 30px; margin-top: 52px; }
.K_cfb-article-tools__search, .K_cfb-article-tools__nav { padding: 23px; border: 1px solid var(--K-cfb-violet); background: #202020; }
.K_cfb-article-tools h2 { margin: 5px 0 14px; font-size: 1.25rem; }
.K_cfb-article-tools__nav ul { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.K_cfb-article-tools__nav li:nth-child(odd) { border-right: 1px solid #383838; padding-right: 12px; }

/* Responsive additions */
@media (max-width: 980px) {
  .K_cfb-contact-shortcuts__grid { grid-template-columns: repeat(2, 1fr); }
  .K_cfb-shortcut-card:nth-child(3) { border-left: 0; }
  .K_cfb-shortcut-card:nth-child(n+3) { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-list-content, .K_cfb-article-layout { grid-template-columns: minmax(0, 1fr) 260px; gap: 24px; }
  .K_cfb-list-card { grid-template-columns: 190px 1fr; }
  .K_cfb-app-trust__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  .K_cfb-contact-mast { grid-template-columns: 1fr; margin-top: 22px; }
  .K_cfb-contact-mast__aside { min-height: 190px; padding: 25px; border-left: 0; border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-contact-shortcuts__grid { grid-template-columns: 1fr 1fr; }
  .K_cfb-shortcut-card { min-height: 260px; padding: 17px; }
  .K_cfb-shortcut-card + .K_cfb-shortcut-card { border-left: 0; }
  .K_cfb-shortcut-card:nth-child(even) { border-left: 1px solid var(--K-cfb-violet); }
  .K_cfb-shortcut-card:nth-child(n+3) { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-contact-methods, .K_cfb-message { grid-template-columns: 1fr; gap: 25px; }
  .K_cfb-form-grid { grid-template-columns: 1fr; gap: 0; }

  .K_cfb-app-cover { grid-template-columns: 1fr; margin-top: 22px; padding: 28px; }
  .K_cfb-app-cover__device { min-height: 400px; }
  .K_cfb-app-cover__stats { gap: 20px; }
  .K_cfb-app-experience__layout { grid-template-columns: 1fr 1fr; }
  .K_cfb-app-experience__center { grid-column: 1 / -1; grid-row: auto; min-height: 230px; }
  .K_cfb-app-feature:nth-last-child(2), .K_cfb-app-feature:last-child { grid-column: auto; }
  .K_cfb-app-functions { padding: 28px 18px; }
  .K_cfb-app-function { min-height: 190px; padding: 20px 14px; }
  .K_cfb-app-functions__core { width: 112px; height: 112px; }
  .K_cfb-app-updates, .K_cfb-app-faq { grid-template-columns: 1fr; gap: 22px; }
  .K_cfb-install-columns { grid-template-columns: 1fr; }
  .K_cfb-app-cta { grid-template-columns: auto 1fr; gap: 20px; padding: 25px; border-radius: 45px 0; }
  .K_cfb-app-cta > .K_cfb-button { grid-column: 1 / -1; justify-self: start; }

  .K_cfb-list-mast { min-height: 250px; background: linear-gradient(110deg, #202020 0 74%, var(--K-cfb-mint) 74%); }
  .K_cfb-list-mast__graphic { width: 95px; }
  .K_cfb-list-mast__graphic strong { font-size: 3.5rem; }
  .K_cfb-list-content, .K_cfb-article-layout { grid-template-columns: 1fr; }
  .K_cfb-list-card { grid-template-columns: 160px 1fr; }
  .K_cfb-list-card__image, .K_cfb-list-card__image img { min-height: 180px; }
  .K_cfb-list-rail { grid-template-columns: 1fr 1fr; }
  .K_cfb-list-note { grid-column: 1 / -1; }
  .K_cfb-article-aside { position: static; }
  .K_cfb-article-tools { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .K_cfb-contact-shortcuts__grid { grid-template-columns: 1fr; }
  .K_cfb-shortcut-card { min-height: auto; }
  .K_cfb-shortcut-card:nth-child(even) { border-left: 0; }
  .K_cfb-shortcut-card + .K_cfb-shortcut-card { border-top: 1px solid var(--K-cfb-violet); }
  .K_cfb-contact-mast__copy { padding: 28px 22px; }
  .K_cfb-contact-mast__copy h1 { font-size: 2.6rem; }
  .K_cfb-contact-mast__aside { padding: 22px; }
  .K_cfb-message { padding: 20px; }
  .K_cfb-message__form { padding: 18px; }

  .K_cfb-app-experience__layout { grid-template-columns: 1fr; }
  .K_cfb-app-experience__center { grid-column: 1; }
  .K_cfb-app-functions__wheel { grid-template-columns: 1fr; }
  .K_cfb-app-function { min-height: auto; padding: 20px; }
  .K_cfb-app-functions__core { position: relative; top: auto; left: auto; margin: 15px auto; transform: none; }
  .K_cfb-app-trust__grid { grid-template-columns: 1fr; }
  .K_cfb-app-trust__grid > div { min-height: auto; border-right: 0; }
  .K_cfb-app-cta { grid-template-columns: 1fr; }
  .K_cfb-app-cta__mark { width: 65px; height: 65px; }

  .K_cfb-list-mast { background: #202020; }
  .K_cfb-list-mast__graphic { display: none; }
  .K_cfb-list-card { grid-template-columns: 1fr; }
  .K_cfb-list-card__image, .K_cfb-list-card__image img { height: 205px; min-height: 205px; }
  .K_cfb-list-card__body { min-height: 200px; }
  .K_cfb-list-rail { grid-template-columns: 1fr; }
  .K_cfb-list-note { grid-column: auto; }

  .K_cfb-article-mast { text-align: left; }
  .K_cfb-article-mast__eyebrow { justify-content: flex-start; flex-wrap: wrap; }
  .K_cfb-article__pagination { grid-template-columns: 1fr; }
  .K_cfb-article__pagination a:last-child { text-align: left; }
  .K_cfb-article__share { align-items: flex-start; flex-direction: column; }
  .K_cfb-article-tools__nav ul { grid-template-columns: 1fr; }
  .K_cfb-article-tools__nav li:nth-child(odd) { border-right: 0; padding-right: 0; }
}