:root { --ink: #615ba5; --ink-soft: #7276a9; --purple: #5643bb; --blue: #19409e; --paper: rgba(255,255,255,.92); --navy: #122765; --h5-viewport-height: 100vh; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }

/* 原生 H5 峰会页面 */
.h5-body { min-height: 100vh; color: var(--ink); background: #ebf3ff url("assets/background.png") center / cover fixed no-repeat; }
.h5-stack { width: min(100%, 478px); margin: 0 auto; background: #edf4ff; }
.event-slide { position: relative; min-height: max(100svh, 965px); padding: 78px 28px 72px; overflow: hidden; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; background: #f7fbff url("assets/background.png") center / cover no-repeat; scroll-snap-align: start; }
.slide-content { width: 100%; max-width: 422px; margin: 0 auto; text-align: center; }
.event-title { margin: 0; color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 27px; font-weight: 700; line-height: 1.42; letter-spacing: .015em; }
.section-bracket { margin: 28px 0 0; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 29px; font-weight: 700; letter-spacing: .07em; }
.slogan { margin: 4px 0 34px; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 26px; font-weight: 700; letter-spacing: .07em; }
.hero-slide { display: grid; align-items: start; padding-top: 90px; }.hero-slide .section-bracket { margin-top: 26px; }.partner-stack { display: grid; justify-items: center; gap: 20px; margin: 50px auto 30px; }.easycar-logo { width: 158px; }.tecdo-logo { width: 138px; mix-blend-mode: multiply; }.salesmarty-logo { mix-blend-mode: multiply; }.salesmarty-logo img { display: block; width: 100%; height: auto; }.salesmarty-logo--hero { width: 194px; }.salesmarty-logo--footer { width: 274px; margin-top: 57px; }.event-meta p { margin: 22px 0 7px; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 22px; font-weight: 700; }.event-meta strong { display: block; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 24px; font-weight: 700; line-height: 1.42; }
.intro-slide, .partner-slide { display: flex; align-items: flex-start; }.intro-copy { margin: 43px 6px 0; color: var(--ink-soft); font-size: 16px; font-weight: 400; line-height: 2; text-align: justify; text-align-last: center; text-justify: inter-ideograph; word-spacing: 0; letter-spacing: 0; overflow-wrap: anywhere; word-break: normal; hyphens: auto; }.brand-footer { display: block; margin: 43px auto 0; }.easycar-footer { width: 214px; }.tecdo-footer { width: 212px; mix-blend-mode: multiply; }
.next-page { position: absolute; z-index: 2; left: 50%; bottom: 20px; display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(80,94,176,.3); border-radius: 50%; color: #6767aa; background: rgba(255,255,255,.58); box-shadow: 0 7px 18px rgba(83,95,170,.14), inset 0 1px 0 rgba(255,255,255,.7); transform: translateX(-50%); text-decoration: none; backdrop-filter: blur(8px); }.next-page span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }.next-page b { position: absolute; top: 50%; left: 50%; display: block; width: 16px; height: 15px; color: transparent; font-size: 0; transform: translate(-50%, -50%); animation: scroll-chevron 1.5s ease-in-out infinite; }.next-page b::before, .next-page b::after { content: ""; position: absolute; left: 3px; width: 9px; height: 9px; border-right: 2px solid #5b50be; border-bottom: 2px solid #5b50be; transform: rotate(45deg); }.next-page b::before { top: -1px; opacity: .52; }.next-page b::after { top: 5px; }.next-page:hover { border-color: rgba(79,91,164,.5); background: rgba(255,255,255,.78); }.next-page:focus-visible { outline: 3px solid #4f42b2; outline-offset: 3px; }
.paper-card { margin-top: 38px; background: var(--paper); }.paper-card h3 { margin: 0; color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 32px; line-height: 1.2; letter-spacing: .08em; }.agenda-card { padding: 30px 26px 27px; text-align: left; }.agenda-card h3 { text-align: center; }.agenda-card ol { display: grid; gap: 11px; padding: 0; margin: 22px 0 0; list-style: none; }.agenda-card li { display: grid; grid-template-columns: 86px 1fr; gap: 8px; color: #6561a1; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.48; }.agenda-card li b { font-weight: 400; white-space: nowrap; }.agenda-card li span { padding-left: 8px; border-left: 1px solid #908dbd; }
.venue-card { padding: 29px 14px 34px; }.venue-card h3 { margin-bottom: 29px; }.venue-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }.venue-grid img { display: block; width: 100%; height: 118px; object-fit: cover; }.venue-grid .venue-wide { grid-column: 1 / -1; height: 184px; }.venue-grid img:last-child { grid-column: 1 / -1; height: 150px; }
.location-slide { min-height: 930px; }.location-info { margin: 31px 12px 20px; color: #666299; font-size: 16px; line-height: 1.8; text-align: left; }.location-info p { margin: 5px 0; }.native-map { position: relative; display: flex; align-items: center; justify-content: center; width: min(100%, 300px); aspect-ratio: 1; margin: 10px auto 0; overflow: hidden; border-radius: 50%; color: #44516d; background-color: #cfe9c0; background-image: linear-gradient(24deg, transparent 43%, #f5f2e9 44% 48%, transparent 49%), linear-gradient(104deg, transparent 39%, #f5f2e9 40% 44%, transparent 45%), linear-gradient(0deg, transparent 42%, #a8d7f2 43% 56%, transparent 57%), repeating-linear-gradient(42deg, transparent 0 20px, rgba(244,239,222,.9) 21px 27px, transparent 28px 51px); box-shadow: 0 8px 24px rgba(45,78,137,.17); text-decoration: none; }.native-map::before { content: "S257   G0425"; position: absolute; left: 46px; top: 55px; color: #986d48; font-size: 13px; font-weight: 700; letter-spacing: 28px; }.native-map i { position: absolute; left: 49%; top: 42%; width: 45px; height: 45px; border-radius: 50% 50% 50% 0; background: #ef6571; transform: rotate(-45deg); box-shadow: 0 4px 8px rgba(121,40,56,.22); }.native-map span { position: relative; z-index: 1; margin-top: 113px; padding: 7px 12px; color: #454b58; font-family: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif; font-size: 18px; font-weight: 700; line-height: 1.35; text-align: center; background: rgba(255,255,255,.8); }.native-map small { font-size: 14px; font-weight: 400; }.native-map b { position: absolute; right: 43px; bottom: 44px; display: grid; width: 44px; height: 44px; place-items: center; border-radius: 50%; color: #fff; background: #2f7aec; font-size: 26px; }.map-button { display: inline-block; margin-top: 24px; padding: 12px 23px; border-radius: 4px; color: #fff; background: #387ff0; text-decoration: none; }
.about-slide { padding-top: 103px; }.about-card { padding: 15px 10px; border: 1px solid #48a4e0; text-align: left; }.about-card p { margin: 0 0 28px; color: #6c70a0; font-size: 16px; line-height: 2; text-indent: 2em; }.about-card p:last-child { margin-bottom: 0; }
.register-slide { min-height: 965px; padding-top: 95px; }.registration-form { margin-top: 26px; text-align: left; }.registration-form label { display: block; margin: 14px 0; color: var(--ink); font-size: 16px; }.registration-form input, .registration-form textarea { display: block; width: 100%; margin-top: 7px; border: 1px solid #6660a8; border-radius: 0; outline: none; padding: 14px 19px; color: #524b97; background: rgba(255,255,255,.1); }.registration-form input { height: 59px; }.registration-form textarea { height: 120px; resize: vertical; }.registration-form input::placeholder, .registration-form textarea::placeholder { color: #5e58a4; opacity: 1; }.registration-form input:focus, .registration-form textarea:focus { background: rgba(255,255,255,.62); box-shadow: 0 0 0 3px rgba(84,67,187,.13); }.registration-form button { width: 100%; height: 54px; margin-top: 7px; border: 0; border-radius: 0; color: #fff; background: var(--purple); font-size: 18px; }.registration-form button:disabled { opacity: .7; cursor: wait; }
.desktop-guide { display: none; }.toast { position: fixed; z-index: 30; left: 50%; bottom: 28px; max-width: calc(100vw - 36px); padding: 12px 18px; border-radius: 10px; transform: translate(-50%, 25px); color: #fff; background: #263983; box-shadow: 0 12px 30px rgba(35,46,124,.25); opacity: 0; pointer-events: none; transition: .25s; }.toast.show { transform: translate(-50%, 0); opacity: 1; }.toast.error { background: #b94054; }@keyframes float { 50% { transform: translateY(5px); } }@keyframes scroll-chevron { 50% { margin-top: 5px; opacity: .55; } }
/* 移动端统一字号与版心：每页保持一屏，不再缩放整页内容。 */
@media (max-width: 899px) {
  .h5-body { background-attachment: scroll; }
  .event-slide,
  .register-slide,
  .location-slide {
    height: 100vh;
    height: 100svh;
    height: 100dvh;
    min-height: 0;
    padding: clamp(20px, 4.5dvh, 42px) clamp(18px, 6vw, 28px) 66px;
    overflow: hidden;
  }
  .slide-content { width: 100%; max-width: 422px; }
  .event-title { font-size: clamp(21px, 6.2vw, 27px); line-height: 1.35; }
  .section-bracket { margin-top: clamp(13px, 2.5dvh, 24px); font-size: clamp(22px, 6.4vw, 29px); line-height: 1.25; }
  .slogan { margin: 0 0 clamp(18px, 3dvh, 28px); font-size: clamp(20px, 6vw, 26px); line-height: 1.25; }
  .next-page { bottom: max(14px, env(safe-area-inset-bottom)); }

  .hero-slide { padding-top: clamp(24px, 5dvh, 52px); }
  .hero-slide .section-bracket { margin-top: clamp(14px, 2.5dvh, 24px); }
  .partner-stack { gap: clamp(10px, 1.8dvh, 16px); margin: clamp(22px, 4dvh, 38px) auto clamp(14px, 2.5dvh, 26px); }
  .easycar-logo { width: clamp(128px, 40vw, 158px); }
  .tecdo-logo { width: clamp(114px, 35vw, 138px); }
  .salesmarty-logo--hero { width: clamp(168px, 51vw, 194px); }
  .event-meta p { margin: clamp(12px, 2dvh, 20px) 0 4px; font-size: clamp(18px, 5.5vw, 22px); }
  .event-meta strong { font-size: clamp(19px, 5.8vw, 24px); line-height: 1.3; }

  .intro-copy { margin: clamp(20px, 3.5dvh, 35px) 0 0; font-size: clamp(13px, 3.85vw, 16px); line-height: 1.68; text-align: center; text-align-last: auto; text-justify: auto; word-break: normal; overflow-wrap: break-word; }
  .brand-footer { margin-top: clamp(24px, 4dvh, 42px); }
  .easycar-footer { width: clamp(178px, 54vw, 214px); }
  .tecdo-footer { width: clamp(176px, 53vw, 212px); }
  .salesmarty-logo--footer { width: clamp(220px, 67vw, 274px); margin-top: clamp(24px, 4dvh, 42px); }

  .about-slide { padding-top: clamp(20px, 4dvh, 40px); }
  .paper-card { margin-top: clamp(18px, 3dvh, 30px); }
  .about-card { padding: 12px 10px; }
  .about-card p { margin-bottom: clamp(11px, 2dvh, 20px); font-size: clamp(12px, 3.65vw, 15.5px); line-height: 1.62; text-align: center; text-indent: 0; }

  .register-slide { padding-top: clamp(20px, 4dvh, 38px); }
  .registration-form { margin-top: clamp(14px, 2.5dvh, 24px); }
  .registration-form label { margin: clamp(7px, 1.4dvh, 12px) 0; font-size: clamp(13px, 3.8vw, 16px); }
  .registration-form input,
  .registration-form textarea { margin-top: 5px; padding: 9px 13px; font-size: clamp(13px, 3.8vw, 16px); }
  .registration-form input { height: clamp(42px, 6.4dvh, 54px); }
  .registration-form textarea { height: clamp(74px, 12dvh, 108px); resize: none; }
  .registration-form button { height: clamp(42px, 6.5dvh, 52px); margin-top: 3px; font-size: clamp(16px, 4.8vw, 18px); }

  .agenda-card { padding: clamp(17px, 3dvh, 26px) clamp(13px, 4vw, 20px) 18px; }
  .paper-card h3 { font-size: clamp(25px, 7.4vw, 32px); }
  .agenda-card ol { gap: clamp(4px, 1dvh, 8px); margin-top: clamp(14px, 2.2dvh, 20px); }
  .agenda-card li { grid-template-columns: clamp(64px, 20vw, 80px) 1fr; gap: 5px; font-size: clamp(11px, 3.35vw, 14.5px); line-height: 1.32; }
  .agenda-card li span { padding-left: 6px; }

  .venue-card { padding: 19px 13px 18px; }
  .venue-card h3 { margin-bottom: 18px; }
  .venue-grid { gap: 8px; }
  .venue-grid img { height: clamp(72px, 23vw, 99px); }
  .venue-grid .venue-wide { height: clamp(112px, 35vw, 154px); }
  .venue-grid img:last-child { height: clamp(88px, 28vw, 123px); }

  .location-info { margin: clamp(16px, 2.5dvh, 25px) 0 12px; font-size: clamp(13px, 3.8vw, 16px); line-height: 1.55; text-align: center; }
  .native-map { width: min(100%, clamp(218px, 66vw, 277px)); height: auto; margin-top: 5px; }
  .native-map span { font-size: clamp(14px, 4.2vw, 18px); }
  .map-button { margin-top: clamp(12px, 2dvh, 20px); padding: 10px 19px; }
}
@media (max-width: 480px) { .event-slide { min-height: 100svh; padding: 64px 28px 60px; }.hero-slide { padding-top: 76px; }.event-title { font-size: 26px; }.section-bracket { font-size: 28px; }.slogan { margin-bottom: 28px; font-size: 25px; }.partner-stack { margin: 37px auto 26px; gap: 16px; }.intro-copy { margin-top: 36px; font-size: 16px; line-height: 1.95; }.agenda-card { margin-top: 31px; padding: 26px 20px; }.agenda-card ol { gap: 8px; }.venue-card { margin-top: 29px; }.venue-grid img { height: 99px; }.venue-grid .venue-wide { height: 154px; }.venue-grid img:last-child { height: 123px; }.about-slide { padding-top: 77px; }.about-card p { font-size: 15.5px; line-height: 1.88; }.register-slide { padding-top: 72px; }.native-map { height: 277px; }.salesmarty-logo--footer { margin-top: 47px; }.next-page { bottom: 16px; } }
@media (min-width: 900px) { .h5-body { padding: 38px 0 52px; }.h5-stack { overflow: hidden; border: 1px solid rgba(113,132,187,.2); border-radius: 10px; box-shadow: 0 20px 70px rgba(44,69,155,.25); }.event-slide { scroll-margin-top: 30px; }.desktop-guide { position: fixed; z-index: 3; top: 50%; left: max(34px, calc(50% - 590px)); display: block; width: 205px; transform: translateY(-50%); padding: 26px 24px; border: 1px solid rgba(79,97,169,.15); border-radius: 16px; background: rgba(255,255,255,.82); box-shadow: 0 12px 40px rgba(55,72,141,.12); backdrop-filter: blur(14px); }.desktop-guide > img { display: block; width: 112px; }.desktop-guide > p { margin: 20px 0 16px; color: #63708d; font-size: 12px; line-height: 1.75; }.desktop-guide nav { display: grid; gap: 1px; }.desktop-guide nav a { padding: 7px 0; color: #50537d; text-decoration: none; font-size: 13px; }.desktop-guide nav a:hover { color: #183d9b; font-weight: 700; }.guide-admin { display: block; margin-top: 18px; padding-top: 15px; border-top: 1px solid #e4e9f5; color: #233f99; text-decoration: none; font-size: 13px; font-weight: 700; } }

/* 管理后台 */
.admin-body { min-height: 100vh; background: #f4f7fc; color: #1e2941; }.admin-login { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(135deg, #ecf4ff, #edf0ff 50%, #eef6ff); }.login-card { width: min(100%, 418px); padding: 46px; border: 1px solid #e4e9f7; border-radius: 18px; background: rgba(255,255,255,.91); box-shadow: 0 24px 70px rgba(44,69,155,.12); }.login-card img { width: 128px; }.login-card p { margin: 27px 0 8px; color: #6d7994; font-size: 14px; }.login-card h1 { margin: 0; color: #18234a; font-size: 31px; letter-spacing: 0; }.login-card form { margin-top: 34px; }.login-card label, dialog label { display: block; color: #37445f; font-size: 14px; font-weight: 700; }.login-card input, dialog input, .toolbar input { width: 100%; margin-top: 8px; padding: 13px 14px; border: 1px solid #d9e0ee; border-radius: 8px; outline-color: #2657ce; background: white; }.login-card button { width: 100%; padding: 13px; margin-top: 20px; border: 0; border-radius: 8px; background: #5442b7; color: #fff; font-weight: 700; }.login-card small { display: block; margin-top: 16px; color: #8c96aa; line-height: 1.6; }
.dashboard { min-height: 100vh; display: grid; grid-template-columns: 236px minmax(0, 1fr); }.admin-sidebar { display: flex; flex-direction: column; min-height: 100vh; padding: 30px 16px; background: #122765; color: #cbd7f9; }.admin-brand { display: block; padding: 0 13px 30px; border-bottom: 1px solid rgba(255,255,255,.14); }.admin-brand img { width: 108px; filter: brightness(0) invert(1); }.admin-sidebar > p { margin: 30px 13px 10px; color: #7f96d1; font-size: 12px; }.side-tab, .logout { border: 0; padding: 13px; border-radius: 8px; color: #cbd7f9; text-align: left; background: transparent; }.side-tab.active { background: #314b99; color: #fff; }.logout { margin-top: auto; color: #aebde4; }.admin-main { min-width: 0; padding: 34px clamp(22px, 4vw, 62px) 56px; }.admin-header { display: flex; justify-content: space-between; align-items: start; margin-bottom: 30px; }.admin-header p { margin: 0 0 5px; color: #78849c; font-size: 13px; }.admin-header h1 { margin: 0; color: #1e2941; font-size: clamp(25px, 3vw, 34px); letter-spacing: 0; }.admin-header > span { color: #8c97ac; font-size: 13px; }.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 17px; }.stat-grid article { min-height: 126px; padding: 23px; border: 1px solid #e5ebf6; border-radius: 13px; background: #fff; box-shadow: 0 6px 18px rgba(34,57,114,.035); }.stat-grid span { display: block; color: #77839a; font-size: 14px; }.stat-grid strong { display: block; margin-top: 13px; color: #1b3479; font-size: 35px; }.toolbar { display: flex; gap: 11px; margin: 28px 0 18px; }.toolbar input { width: min(100%, 380px); margin: 0; }.secondary { border: 1px solid #d7dfef !important; background: #fff !important; color: #344765 !important; }.toolbar button, .channel-heading > button { padding: 0 17px; border: 0; border-radius: 8px; background: #5442b7; color: #fff; font-weight: 700; white-space: nowrap; }.table-wrap { overflow-x: auto; border: 1px solid #e4eaf4; border-radius: 13px; background: #fff; }table { width: 100%; min-width: 930px; border-collapse: collapse; }th { padding: 14px 18px; background: #f8faff; color: #78849a; text-align: left; font-size: 13px; font-weight: 500; }td { padding: 16px 18px; border-top: 1px solid #edf0f6; color: #48546b; font-size: 14px; vertical-align: top; }td strong { color: #233453; }td small { display: block; margin-top: 4px; color: #8190a7; }.channel-pill { display: inline-block; padding: 4px 9px; border-radius: 99px; background: #edf1ff; color: #4d60af; font-size: 12px; }.question-cell { max-width: 260px; line-height: 1.6; }.empty-cell { padding: 48px; color: #98a2b3; text-align: center; }.channel-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }.muted { color: #7b879d; line-height: 1.7; }.channel-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }.channel-card, .empty-channels { padding: 23px; border: 1px solid #e3eaf5; border-radius: 12px; background: #fff; }.channel-card { display: flex; align-items: center; justify-content: space-between; gap: 20px; }.channel-card h3 { margin: 0; color: #2a3855; font-size: 17px; }.channel-card p { margin: 8px 0; color: #61708c; font-family: ui-monospace, monospace; font-size: 12px; }.channel-card small { color: #9aa4b5; }.channel-card button { flex: none; padding: 9px 13px; border: 0; border-radius: 8px; background: #edf2ff; color: #3957ab; font-weight: 700; }.empty-channels { border-style: dashed; color: #8793a8; line-height: 1.8; text-align: center; }dialog { width: min(calc(100% - 34px), 410px); padding: 0; border: 0; border-radius: 15px; box-shadow: 0 24px 80px rgba(15,31,91,.25); }dialog::backdrop { background: rgba(17, 31, 73, .38); }dialog form { position: relative; padding: 33px; }dialog h2 { margin: 0; color: #263554; font-size: 25px; letter-spacing: 0; }.dialog-kicker { margin: 0 0 5px; color: #5871bd; font-size: 13px; font-weight: 700; }.dialog-close { position: absolute; right: 17px; top: 12px; border: 0; color: #8390a6; background: none; font-size: 28px; }dialog label { margin-top: 27px; }dialog button[type="submit"] { width: 100%; margin-top: 17px; padding: 13px; border: 0; border-radius: 8px; background: #5442b7; color: #fff; font-weight: 700; }.admin-panel[hidden], .dashboard[hidden], .admin-login[hidden] { display: none; }
@media (max-width: 720px) { .dashboard { display: block; }.admin-sidebar { position: sticky; top: 0; z-index: 3; flex-direction: row; align-items: center; min-height: 0; padding: 12px; gap: 4px; overflow-x: auto; }.admin-brand { flex: none; padding: 0 8px 0 0; border: 0; }.admin-brand img { width: 74px; }.admin-sidebar > p { display: none; }.side-tab, .logout { flex: none; padding: 8px 10px; font-size: 13px; }.logout { margin: 0 0 0 auto; }.admin-main { padding: 25px 18px 40px; }.admin-header { margin-bottom: 22px; }.admin-header > span { display: none; }.stat-grid { gap: 9px; }.stat-grid article { min-height: 96px; padding: 14px; }.stat-grid span { font-size: 12px; }.stat-grid strong { margin-top: 11px; font-size: 27px; }.toolbar { flex-wrap: wrap; margin-top: 20px; }.toolbar input { width: 100%; }.toolbar button { height: 39px; }.channel-heading { align-items: flex-start; gap: 16px; }.channel-heading > button { height: 42px; padding-inline: 13px; }.channel-list { grid-template-columns: 1fr; }.channel-card { padding: 18px; }.login-card { padding: 33px 25px; } }

.channel-actions { display: flex; flex: none; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.channel-card .edit-channel { border: 1px solid #d5dff7; background: #fff; color: #52678e; }
.channel-card .delete-channel { background: #fff1f3; color: #c24d5e; }
.record-actions { display: flex; gap: 7px; }.record-actions button { padding: 7px 10px; border: 0; border-radius: 7px; background: #edf2ff; color: #3957ab; font-size: 12px; font-weight: 700; }.record-actions .delete-registration { background: #fff1f3; color: #c24d5e; }#registration-dialog label { margin-top: 15px; }#registration-dialog textarea { display: block; width: 100%; min-height: 92px; margin-top: 8px; padding: 13px 14px; border: 1px solid #d9e0ee; border-radius: 8px; outline-color: #2657ce; resize: vertical; }

/* Final mobile composition: preserve real text sizing; use the page width before reducing type. */
@media (max-width: 899px) {
  .event-slide,
  .register-slide,
  .location-slide {
    padding: clamp(18px, 3.5dvh, 34px) clamp(16px, 4.8vw, 24px) 62px;
  }
  .event-title { font-size: clamp(21px, 6.2vw, 27px); line-height: 1.35; }
  .section-bracket { margin-top: clamp(12px, 2.2dvh, 20px); font-size: clamp(22px, 6.4vw, 29px); }
  .slogan { margin: 0 0 clamp(14px, 2.4dvh, 24px); font-size: clamp(20px, 6vw, 26px); }

  .hero-slide { padding-top: clamp(24px, 4.5dvh, 42px); }
  .partner-stack { margin: clamp(18px, 3.3dvh, 30px) auto clamp(10px, 2dvh, 18px); gap: clamp(9px, 1.5dvh, 14px); }
  .event-meta p { margin: clamp(10px, 1.7dvh, 16px) 0 3px; }

  .about-slide { padding-top: clamp(18px, 3dvh, 30px); }
  .about-slide .paper-card { margin-top: clamp(14px, 2dvh, 18px); }
  .about-card { padding: 10px 8px; }
  .about-card p { margin-bottom: clamp(8px, 1.3dvh, 12px); font-size: clamp(11.5px, 3.3vw, 14.5px); line-height: 1.52; }

  .register-slide { padding-top: clamp(18px, 3dvh, 30px); }
  .register-slide .section-bracket { margin-top: clamp(10px, 1.8dvh, 16px); }
  .registration-form { margin-top: clamp(10px, 1.8dvh, 18px); }
  .registration-form label { margin: clamp(5px, 1dvh, 9px) 0; font-size: clamp(12px, 3.55vw, 15px); }
  .registration-form input,
  .registration-form textarea { margin-top: 4px; padding: 7px 11px; }
  .registration-form input { height: clamp(38px, 6dvh, 48px); }
  .registration-form textarea { height: clamp(62px, 10dvh, 88px); }
  .registration-form button { height: clamp(40px, 6.2dvh, 48px); }

  .intro-copy { margin-top: clamp(17px, 2.8dvh, 28px); }
  .agenda-slide { padding-top: clamp(17px, 2.8dvh, 28px); }
  .agenda-slide .paper-card { margin-top: clamp(14px, 2dvh, 18px); }
  .agenda-card { padding: clamp(14px, 2.4dvh, 20px) 11px 14px; }
  .agenda-card ol { margin-top: clamp(10px, 1.6dvh, 15px); gap: clamp(3px, .7dvh, 6px); }
  .agenda-card li { grid-template-columns: clamp(61px, 19vw, 74px) 1fr; font-size: clamp(10.5px, 3.1vw, 13.5px); line-height: 1.26; }
  .agenda-card li span { padding-left: 5px; }

  .venue-slide { padding-top: clamp(18px, 3dvh, 30px); }
  .venue-card { margin-top: clamp(16px, 2.4dvh, 22px); }
  .location-slide { padding-top: clamp(18px, 3dvh, 30px); }

  /* Keep the map a true circle on every mobile viewport.  The old `height:
     auto` let the flex contents decide its height on some webviews. */
  .location-slide .native-map {
    --map-size: min(76vw, 277px);
    width: var(--map-size);
    height: var(--map-size);
    min-height: var(--map-size);
    aspect-ratio: 1 / 1;
    flex: 0 0 var(--map-size);
    border-radius: 50%;
    clip-path: circle(50% at 50% 50%);
  }
}

/* WebViews such as WeChat and Lark can reserve space for a bottom toolbar
   without updating 100vh. app.js keeps this value in sync with the visible
   part of the page, so each slide ends above that native toolbar. */
@media (max-width: 899px) {
  .event-slide,
  .register-slide,
  .location-slide {
    height: var(--h5-viewport-height);
    min-height: var(--h5-viewport-height);
    max-height: var(--h5-viewport-height);
  }
}