:root { color-scheme: light; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.mobile-page { margin: 0; background: #e9eef8; color: #172e54; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; -webkit-font-smoothing: antialiased; }
/* 横滑兜底：CMS 公共头部在 .m-shell 之外，clip 裁不到它；部分机型（非覆盖式
   滚动条、头部含 100vw 元素）会把文档撑宽导致整页可左右横滑。文档级禁用
   横向滚动，不影响纵向滚动与吸顶头部。 */
html, body.mobile-page { overflow-x: hidden; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }
.m-shell { width: min(100%, 460px); min-height: 100vh; margin: 0 auto; background: #fff; box-shadow: 0 12px 56px #1734651c; overflow: hidden; overflow: clip; /* 老 WebView 不识 clip 时退化为 hidden，同样裁掉横向溢出（吸顶头部在 shell 外，不受影响） */ }
.m-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; min-height: 62px; padding: 10px 20px; background: #fffffff2; backdrop-filter: blur(16px); border-bottom: 1px solid #e9eef8; }
.m-brand { display: flex; align-items: center; gap: 9px; min-width: 0; font-size: 13px; font-weight: 800; line-height: 1.25; white-space: nowrap; }
.m-brand small { display: block; margin-top: 2px; color: #5c7296; font-size: 6px; font-weight: 700; letter-spacing: .05em; }
.m-brand-dots { position: relative; display: block; flex: none; width: 24px; height: 28px; }
.m-brand-dots i { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: #075bff; }
.m-brand-dots i:nth-child(1) { top: 0; left: 9px; }
.m-brand-dots i:nth-child(2) { top: 10px; left: 1px; background: #00c8e6; }
.m-brand-dots i:nth-child(3) { top: 20px; left: 12px; background: #a657fa; }
.m-menu-button { display: grid; place-content: center; gap: 5px; flex: none; width: 44px; height: 44px; padding: 0; border: 0; background: transparent; }
.m-menu-button span { display: block; width: 20px; height: 2px; border-radius: 2px; background: #1b3768; }
.m-nav { position: absolute; top: 100%; left: 0; right: 0; display: grid; padding: 9px 20px 18px; background: #fff; box-shadow: 0 16px 30px #142d5122; }
.m-nav a { display: flex; align-items: center; min-height: 47px; border-bottom: 1px solid #edf1f8; font-size: 14px; font-weight: 700; }
.m-hero { position: relative; display: flex; flex-direction: column; justify-content: flex-end; min-height: min(650px, calc(100svh - 62px)); padding: 130px 25px 24px; isolation: isolate; background: #24416b; color: #fff; overflow: hidden; }
.m-hero-video { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(1.22) saturate(1.08); }
.m-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, #10264b39 0%, #14274728 35%, #0b21466e 100%); }
.m-hero-content { position: relative; text-shadow: 0 2px 12px #071a4599; }
.m-eyebrow { display: flex; flex-direction: column; align-items: flex-start; gap: 0; margin: 0 0 14px; padding: 0; background: none; font-size: 32px; font-weight: 800; line-height: 1; letter-spacing: .02em; white-space: nowrap; text-shadow: 0 2px 6px #061736, 0 0 12px #06173699; }
.m-hero h1 { margin: 0; font-size: clamp(37px, 10vw, 50px); line-height: 1.22; font-weight: 850; letter-spacing: -.04em; }
.m-hero h1 span { color: #fff; }
.m-hero-content > p:last-of-type { margin: 18px 0 26px; font-size: 15px; line-height: 1.75; font-weight: 600; }
.m-reserve-button { display: inline-flex; align-items: center; justify-content: center; min-width: 132px; min-height: 48px; padding: 10px 20px; border: 0; border-radius: 8px; background: linear-gradient(110deg, #1268ff, #843cff); color: #fff; box-shadow: 0 8px 18px #0d2e6b33; font-size: 14px; font-weight: 700; line-height: 1.2; white-space: nowrap; text-shadow: none; }
.m-reserve-button:hover { background: linear-gradient(110deg, #075df4, #7732ed); }
.m-reserve-button:active { transform: scale(.98); }
.m-scroll-cue { display: flex; justify-content: space-between; align-items: center; margin-top: 64px; padding-top: 13px; border-top: 1px solid #ffffff73; font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.m-scroll-cue span { font-size: 19px; line-height: 1; }
.m-section { padding: 70px 22px 76px; scroll-margin-top: 62px; }
.m-section-heading { margin-bottom: 28px; }
.m-section-heading > p { margin: 0 0 12px; color: #4073dc; font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.m-section-heading h2 { margin: 0; color: #142e59; font-size: 28px; line-height: 1.3; font-weight: 800; letter-spacing: -.025em; }
.m-highlights { background: radial-gradient(circle at 0 0, #f2dcff88, transparent 32%), #f8faff; }
.m-highlight { position: relative; margin-top: 14px; padding: 26px 22px 22px; border: 1px solid #e7eefd; border-radius: 16px; background: #fff; box-shadow: 0 10px 22px #2950a00b; }
.m-highlight-index { display: block; margin-bottom: 18px; color: #7454d9; font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.m-highlight h3 { margin: 0 0 10px; color: #1a376b; font-size: 20px; line-height: 1.4; font-weight: 800; }
.m-highlight p { margin: 0 0 20px; color: #5b6b88; font-size: 13px; line-height: 1.8; }
.m-highlight .m-highlight-speaker { margin-bottom: 18px; color: #34527e; font-size: 12px; font-weight: 700; }
.m-people { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 2px 0 20px; }
.m-person { min-width: 0; padding: 12px 10px; border-radius: 9px; background: #f7f9ff; }
.m-person img { width: 68px; height: 34px; margin-bottom: 8px; object-fit: contain; object-position: left center; }
.m-person strong, .m-person span { display: block; }
.m-person strong { font-size: 13px; }
.m-person span { margin-top: 3px; color: #6d7f9e; font-size: 10px; line-height: 1.4; }
.m-agenda { background: #fff; }
.m-tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; border-radius: 10px; background: #edf2ff; }
.m-tabs button { min-height: 44px; border: 0; border-radius: 8px; background: transparent; color: #627798; font-size: 14px; font-weight: 800; }
.m-tabs button.is-active { background: #fff; color: #235cdb; box-shadow: 0 2px 8px #19356518; }
.m-agenda-panel { padding-top: 20px; }
.m-agenda-day { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 17px 16px; border-radius: 12px; background: linear-gradient(110deg, #eef5ff, #f7f1ff); color: #1e3a69; font-size: 12px; line-height: 1.7; font-weight: 700; }
.m-agenda-day strong { font-size: 17px; }
.m-sessions { list-style: none; margin: 0; padding: 0; }
.m-session { display: grid; grid-template-columns: 86px minmax(0, 1fr); gap: 12px; min-height: 61px; padding: 16px 2px; border-bottom: 1px solid #ebeff6; }
.m-session-kind { color: #647b9d; font-size: 12px; line-height: 1.55; }
.m-session-speaker { min-width: 0; color: #1c3864; font-size: 13px; line-height: 1.6; }
.m-session-speaker strong { display: block; font-weight: 800; }
.m-session-speaker span { display: block; margin-top: 3px; color: #5e7191; font-size: 12px; overflow-wrap: anywhere; }
.m-forum { border-bottom: 1px solid #e8edf7; scroll-margin-top: 72px; }
.m-forum summary { display: flex; align-items: center; gap: 12px; min-height: 64px; padding: 10px 2px; list-style: none; cursor: pointer; }
.m-forum summary::-webkit-details-marker { display: none; }
.m-forum-num { flex: none; color: #6a8ee6; font-size: 11px; font-weight: 800; }
.m-forum summary strong { flex: 1; min-width: 0; color: #1c3966; font-size: 14px; line-height: 1.5; }
.m-forum-plus { position: relative; flex: none; width: 18px; height: 18px; }
.m-forum-plus::before, .m-forum-plus::after { content: ""; position: absolute; top: 8px; left: 2px; width: 14px; height: 2px; border-radius: 2px; background: #2568e9; }
.m-forum-plus::after { transform: rotate(90deg); transition: transform .2s; }
.m-forum[open] .m-forum-plus::after { transform: rotate(0); }
.m-forum-body { padding: 3px 0 20px 25px; }
.m-forum-body > .m-reserve-button { margin-bottom: 12px; }
.m-forum-body .m-session { grid-template-columns: 80px minmax(0, 1fr); }
.m-about { background: radial-gradient(circle at 0 0, #ffe8f764, transparent 38%), radial-gradient(circle at 100% 100%, #c5f4ff7a, transparent 40%), #f9fbff; }
.m-about-logo { width: 150px; max-height: 100px; margin: 0 0 18px; object-fit: contain; object-position: left; }
.m-about-copy p { margin: 0 0 13px; color: #536984; font-size: 13px; line-height: 1.85; }
.m-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; margin-top: 28px; padding-top: 20px; border-top: 1px solid #dce6f7; }
.m-stat strong, .m-stat span { display: block; }
.m-stat strong { color: #3563de; font-size: clamp(17px, 5vw, 23px); line-height: 1.3; }
.m-stat span { margin-top: 6px; color: #7585a0; font-size: 10px; line-height: 1.4; }
.m-footer { padding: 62px 22px 28px; scroll-margin-top: 62px; background: radial-gradient(circle at 0 0, #ffd6f2a8, transparent 45%), radial-gradient(circle at 100% 100%, #b9f0ffb8, transparent 50%), #fff; }
.m-footer .m-section-heading { text-align: center; }
.m-contact { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; }
.m-contact img { width: 110px; height: 110px; padding: 5px; background: #fff; object-fit: contain; }
.m-contact p { margin: 0; color: #637693; font-size: 13px; line-height: 1.7; }
.m-footer-brand { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 62px; color: #0873ea; font-size: 16px; font-weight: 800; text-align: center; }
.m-footer-brand .m-brand-dots { transform: scale(.9); transform-origin: left center; }
.m-copyright { margin: 24px 0 0; color: #8190a9; font-size: 10px; line-height: 1.6; text-align: center; }
/* 预约直播弹窗的移动端覆盖样式已并入 assetsTwo/css/reservation-modal.css（弹窗样式单一来源）。 */
:is(.mobile-page button, .mobile-page a, .mobile-page summary):focus-visible { outline: 2px solid #1268ff; outline-offset: 3px; }
@media (max-width: 460px) { body.mobile-page { background: #fff; } .m-shell { box-shadow: none; } }
@media (max-width: 360px) { .m-hero h1 { font-size: 35px; } .m-session { grid-template-columns: 74px minmax(0, 1fr); } .m-brand { font-size: 12px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }