@charset "UTF-8";

:root { --night: #20254d; --night-soft: #39406f; --rose: #d995a2; --rose-light: #f0d4da; --paper: #f5f3f1; --white: #fffefe; --ink: #212744; --muted: #6f748a; --line: #dcdce4; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; padding-top: 60px; overflow-x: hidden; color: var(--ink); background: var(--paper); font: 15px/1.7 "Microsoft YaHei", Arial, sans-serif; }
main { display: flex; flex-direction: column; }
#faq { order: 7; }
#reviews { order: 8; }
#download { order: 9; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { max-width: 100%; }
.brand-bar { position: fixed; z-index: 30; top: 0; right: 0; left: 0; display: flex; align-items: center; justify-content: space-between; height: 60px; padding: 0 22px; color: var(--white); background: var(--night); }
.brand, .footer-brand { display: inline-flex; align-items: center; min-width: 0; gap: 9px; }
.brand img, .footer-brand img { width: 36px; height: 36px; border-radius: 50%; object-fit: contain; background: var(--white); }
.brand span, .footer-brand span { display: grid; gap: 3px; line-height: 1.1; }
.brand strong, .footer-brand strong { font-size: 17px; }
.brand small { color: rgba(255,255,255,.7); font-size: 11px; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.top-download, .primary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 16px; border-radius: 5px; color: var(--white); background: var(--rose); font-size: 13px; font-weight: 900; white-space: nowrap; }
.nav-toggle { display: none; }
.hero { display: grid; grid-template-columns: minmax(175px, 12vw) minmax(0, 1fr); min-height: 630px; }
.channel-nav { display: flex; flex-direction: column; padding: 12px 9px 22px; background: #171c3a; }
.channel-nav ul { display: grid; padding: 0; margin: 0; list-style: none; gap: 8px; }
.channel-nav a { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 8px 11px; border: 1px solid #5f668b; border-radius: 5px; color: var(--white); font-weight: 900; }
.channel-nav a b { color: #d8b3c0; font-size: 11px; }
.channel-nav a.is-active, .channel-nav a:hover { border-color: var(--rose); background: rgba(217,149,162,.24); }
.channel-nav > p { margin: auto 12px 0; color: #b9bed5; font-size: 12px; font-style: italic; }
.hero-scene { position: relative; display: flex; align-items: center; min-height: 630px; padding: 62px clamp(36px, 8vw, 150px); overflow: hidden; background: linear-gradient(90deg, rgba(23,29,61,.73), rgba(23,29,61,.13)), url("../images/bjt.jpg") center / cover; }
.hero-scene::after { position: absolute; inset: 0; content: ""; background: linear-gradient(0deg, rgba(18,23,50,.45), transparent 52%); }
.hero-overlay { position: relative; z-index: 1; max-width: 520px; padding: 28px 31px; border-left: 6px solid var(--rose); color: var(--white); background: rgba(18,24,52,.8); }
.hero-kicker, .section-note { margin: 0; color: #f1c8d0; font-size: 12px; font-weight: 900; letter-spacing: .12em; }
.hero-overlay h1 { margin: 5px 0 0; font-size: clamp(48px, 6vw, 76px); line-height: 1.05; letter-spacing: -.06em; }
.hero-slogan { display: inline-block; margin: 16px 0 0; padding: 2px 8px; color: var(--night); background: var(--rose-light); font-size: clamp(25px, 3vw, 36px); font-weight: 900; line-height: 1.32; }
.hero-desc { margin: 19px 0 16px; color: rgba(255,255,255,.88); }
.hero-tags { display: flex; flex-wrap: wrap; padding: 0; margin: 0; list-style: none; gap: 7px; }.hero-tags li { padding: 3px 9px; border: 1px solid rgba(255,255,255,.55); border-radius: 5px; font-size: 12px; }
.hero-overlay .primary-btn { margin-top: 19px; color: var(--night); background: var(--rose-light); }.primary-btn b { margin-left: 12px; font-size: 17px; }.age-label { display: block; margin-top: 12px; color: rgba(255,255,255,.67); font-size: 12px; }
.content { width: min(1200px, calc(100% - 48px)); margin: 0 auto; padding: 58px 0; }.section-title { display: flex; align-items: baseline; gap: 10px; }.section-title > span { width: 4px; height: 23px; border-radius: 5px; background: var(--rose); }.section-title h2, .rhythm-copy h2, .ideas h2, .community h2, .download h2 { margin: 0; font-size: clamp(26px, 3vw, 36px); line-height: 1.2; }.section-title > p, .section-title > a { margin: 0 0 0 auto; color: var(--muted); font-size: 12px; }
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); margin-top: 22px; border-top: 1px solid var(--line); gap: 0; }.timeline article { position: relative; display: grid; min-height: 108px; padding: 14px 16px; border-right: 1px solid var(--line); gap: 2px; }.timeline article::before { position: absolute; top: -5px; left: 16px; width: 9px; height: 9px; content: ""; border: 2px solid var(--night); border-radius: 50%; background: var(--paper); }.timeline article:last-child { border-right: 0; }.timeline b { color: var(--night-soft); font-size: 13px; }.timeline strong { font-size: 14px; }.timeline span { color: var(--muted); font-size: 12px; }
.shelves { padding-top: 10px; }.shelf-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 20px; gap: 12px; }.shelf-grid article { min-height: 160px; padding: 23px; border: 1px solid #d3d7e9; border-radius: 5px; color: var(--white); background: var(--night-soft); }.shelf-grid article:nth-child(2) { background: #4d4a78; }.shelf-grid article:nth-child(3) { background: #706080; }.shelf-grid b { font-size: 20px; }.shelf-grid p { max-width: 210px; margin: 5px 0 14px; color: rgba(255,255,255,.75); font-size: 13px; }.shelf-grid a { font-size: 12px; font-weight: 900; }
.rhythm { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 38px; }.rhythm-copy > p:not(.section-note), .ideas p { color: var(--muted); }.rhythm-copy > a { display: inline-block; margin-top: 15px; color: var(--night); font-weight: 900; }.rhythm-panel { display: grid; min-height: 248px; padding: 30px; border: 1px solid #cdd2e7; border-radius: 5px; color: var(--white); background: var(--night); grid-template-columns: 1fr 1fr; }.rhythm-panel p { margin: 0; font-size: 22px; line-height: 1.4; }.rhythm-panel p b { color: #f3c8d2; }.rhythm-panel ul { align-self: end; padding: 0; margin: 0; list-style: none; }.rhythm-panel li { padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,.17); color: #d7daec; font-size: 12px; }
.steps ol { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0; margin: 20px 0 0; list-style: none; gap: 10px; }.steps li { display: grid; grid-template-columns: 31px minmax(0,1fr); align-items: center; min-height: 92px; padding: 13px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); column-gap: 10px; }.steps li b { display: grid; width: 27px; height: 27px; place-items: center; border-radius: 50%; color: var(--night); background: var(--rose-light); }.steps li strong { display: block; }.steps li span { display: block; color: var(--muted); font-size: 11px; }
.gallery { padding-top: 12px; }.gallery-grid { display: grid; grid-template-columns: 1.25fr .95fr .95fr; grid-template-rows: repeat(2, 156px); margin-top: 20px; gap: 8px; }.gallery-grid figure { position: relative; margin: 0; overflow: hidden; border-radius: 5px; background: var(--white); }.gallery-grid img { width: 100%; height: 100%; object-fit: cover; }.gallery-grid .gallery-main { grid-row: span 2; }.gallery-grid figcaption { position: absolute; right: 0; bottom: 0; left: 0; padding: 8px 10px; color: var(--white); background: rgba(18,24,52,.76); font-size: 12px; font-weight: 800; }
.ideas { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 46px; }.idea-list { display: grid; gap: 8px; }.idea-list article { display: grid; grid-template-columns: 90px 1fr; padding: 12px 15px; border: 1px solid var(--line); border-radius: 5px; background: var(--white); gap: 12px; }.idea-list span { color: var(--muted); font-size: 13px; }
.community { color: var(--white); background: var(--night); }.community-inner { display: grid; grid-template-columns: .6fr 1.4fr; width: min(1200px, calc(100% - 48px)); margin: 0 auto; padding: 36px 0; gap: 30px; }.community-inner > div:first-child p { margin: 0; color: #f0c1cc; font-size: 12px; font-weight: 900; letter-spacing: .1em; }.community-inner > div:first-child span { color: rgba(255,255,255,.7); font-size: 13px; }.review-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }.review-list article { display: flex; flex-direction: column; min-height: 136px; padding: 13px; border-radius: 5px; background: rgba(255,255,255,.1); }.review-list header { display: grid; grid-template-columns: 27px minmax(0,1fr) 61px; align-items: center; gap: 6px; }.avatar-icon { width: 27px; height: 27px; border-radius: 50%; background: url("../icons/avatar.svg") center / contain no-repeat; }.review-list strong { min-width: 0; overflow: hidden; font-size: 12px; white-space: nowrap; }.rating { display: flex; width: 61px; overflow: hidden; font-size: 0; }.rating i { display: block; flex: 0 0 11px; height: 15px; overflow: hidden; color: transparent; font-size: 0; font-style: normal; }.rating i::before { display: block; content: "★"; color: #f7cd79; font-size: 11px; line-height: 15px; }.review-list p { margin: 9px 0; color: rgba(255,255,255,.8); font-size: 12px; }.review-list time { margin-top: auto; color: #c6cce5; font-size: 11px; text-align: right; }
.faq { padding-top: 58px; }.faq-list { display: grid; margin-top: 19px; gap: 8px; }.faq-list details { border: 1px solid var(--line); border-radius: 5px; background: var(--white); }.faq-list summary { display: flex; align-items: center; justify-content: space-between; min-height: 53px; padding: 10px 16px; cursor: pointer; font-size: 13px; font-weight: 800; list-style: none; }.faq-list summary::-webkit-details-marker { display: none; }.faq-list summary b { color: var(--rose); font-size: 19px; font-weight: 400; }.faq-list details[open] summary b { transform: rotate(45deg); }.faq-list details p { padding: 0 16px 15px; margin: 0; color: var(--muted); font-size: 13px; }.faq-list p a { color: var(--night); text-decoration: underline; }
.download { display: grid; justify-items: center; padding: 64px 0; text-align: center; }.download > p { margin: 0; color: var(--rose); font-size: 12px; font-weight: 900; letter-spacing: .1em; }.download h2 { margin: 7px 0 3px; }.download > span { color: var(--muted); }.download .primary-btn { margin-top: 18px; }.site-footer { display: grid; grid-template-columns: 1fr 1fr; align-items: center; padding: 25px max(24px,calc((100vw - 1200px)/2)); color: var(--white); background: var(--night); gap: 16px 20px; }.footer-brand small { color: #bfc5de; }.site-footer ul { display: flex; justify-content: flex-end; flex-wrap: wrap; padding: 0; margin: 0; list-style: none; gap: 15px; color: #c9cde0; font-size: 12px; }.site-footer > small { grid-column: 1 / -1; color: #aeb4ce; font-size: 12px; text-align: center; }.to-top { position: fixed; z-index: 20; right: 20px; bottom: 20px; display: grid; width: 40px; height: 40px; padding: 0; place-items: center; border: 1px solid #aaaed0; border-radius: 50%; background: var(--white); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .2s; }.to-top.is-visible { opacity: 1; pointer-events: auto; }.to-top img { width: 16px; height: 16px; }
@media (max-width: 900px) { .hero { grid-template-columns: 165px 1fr; }.rhythm, .ideas { grid-template-columns: 1fr; }.review-list { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 680px) { body { padding-top: 60px; }.brand-bar { padding: 0 12px; }.brand img { width: 30px; height: 30px; }.brand strong { font-size: 15px; }.top-download { min-height: 34px; padding: 0 9px; font-size: 12px; }.nav-toggle { display: flex; width: 36px; height: 34px; flex-direction: column; align-items: center; justify-content: center; padding: 0; border: 1px solid #aaaed0; border-radius: 5px; color: var(--white); background: transparent; gap: 4px; }.nav-toggle i { display: block; width: 16px; height: 2px; background: currentColor; }.hero { display: block; min-height: 0; }.channel-nav { position: static; padding: 0; background: transparent; }.channel-nav ul { position: fixed; z-index: 29; top: 60px; right: 12px; display: none; width: min(245px,calc(100vw - 24px)); padding: 10px; border: 1px solid #59618e; border-radius: 5px; background: rgba(23,28,58,.98); box-shadow: 0 10px 20px rgba(18,23,50,.25); }.channel-nav.is-open ul { display: grid; }.channel-nav > p { display: none; }.hero-scene { min-height: 570px; padding: 88px 14px 44px; background-position: 56% center; }.hero-overlay { width: 100%; padding: 23px 17px; text-align: center; border-top: 5px solid var(--rose); border-left: 0; }.hero-overlay h1 { font-size: 48px; }.hero-slogan { font-size: 25px; }.hero-tags { justify-content: center; }.hero-desc { font-size: 14px; }.content { width: calc(100% - 28px); padding: 46px 0; }.timeline { display: flex; padding-bottom: 8px; overflow-x: auto; touch-action: pan-x pan-y; }.timeline article { flex: 0 0 140px; }.shelf-grid { grid-template-columns: 1fr; }.rhythm-panel { min-height: 210px; }.steps ol { grid-template-columns: repeat(2,1fr); }.gallery-grid { grid-template-columns: 1.25fr 1fr; grid-template-rows: repeat(3,112px); }.ideas { gap: 22px; }.community .community-inner { display: block; width: calc(100% - 28px); padding: 34px 0; }.community .community-inner > div:first-child { margin-bottom: 18px; }.community .review-list { grid-template-columns: 1fr; }.community .review-list article { min-height: 0; }.faq { padding-top: 46px; }.site-footer { grid-template-columns: 1fr; justify-items: center; padding: 28px 15px; text-align: center; }.site-footer ul { justify-content: center; }.to-top { right: 13px; bottom: 13px; } }
@media (hover: none) and (pointer: coarse) { a:active, button:active, summary:active { opacity: 1; filter: none; transition: none; animation: none; } }