:root {
  --ink: #151918;
  --muted: #65706c;
  --line: #dfe5df;
  --paper: #f4f1ea;
  --white: #ffffff;
  --forest: #12362f;
  --jade: #1d6c60;
  --brass: #c99b4d;
  --clay: #8b5146;
  --shadow: 0 24px 70px rgba(18, 54, 47, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  letter-spacing: 0;
}

body.nav-open {
  overflow: hidden;
}

a {
  color: inherit;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 58px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(16, 22, 20, 0.78), rgba(16, 22, 20, 0));
  transition: background 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.site-header.is-scrolled {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 24, 22, 0.9);
  box-shadow: 0 16px 44px rgba(8, 14, 12, 0.16);
  backdrop-filter: blur(14px);
}

.event-mark {
  display: grid;
  gap: 2px;
  text-decoration: none;
  line-height: 1.05;
}

.event-mark span {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.event-mark strong {
  color: #f3d391;
  font-size: 20px;
}

.event-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
  font-weight: 800;
}

.event-nav a {
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.nav-toggle span {
  display: block;
  width: 17px;
  height: 2px;
  background: var(--white);
}

.hero {
  position: relative;
  min-height: 96vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--forest);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.78;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(12, 18, 16, 0.95), rgba(12, 18, 16, 0.68) 46%, rgba(12, 18, 16, 0.14)),
    linear-gradient(180deg, rgba(12, 18, 16, 0.18), rgba(12, 18, 16, 0.82));
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 132px 0 76px;
  color: var(--white);
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--brass);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: none;
  margin-bottom: 22px;
  font-size: clamp(58px, 6.6vw, 96px);
  line-height: 1.02;
  font-weight: 900;
  white-space: nowrap;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.16;
}

h3 {
  font-size: 21px;
  line-height: 1.35;
}

p {
  line-height: 1.85;
}

.hero-subtitle {
  max-width: 740px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 22px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 190px));
  gap: 1px;
  width: fit-content;
  margin: 0 0 34px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.16);
}

.hero-facts div {
  padding: 18px 20px;
  background: rgba(15, 21, 19, 0.46);
}

.hero-facts dt {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 900;
}

.hero-facts dd {
  margin: 0;
  font-size: 17px;
  font-weight: 900;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border-radius: 6px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 900;
  line-height: 1.2;
}

.button-primary {
  color: #171a16;
  background: #e4b75c;
}

.button-primary:hover {
  background: #f1c870;
}

.button-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.42);
}

.section {
  padding: 82px 0;
}

.intro {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}

.intro-grid,
.split,
.ticket-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  align-items: start;
}

.intro-grid p,
.section-heading p,
.feature-card p,
.audience-list p,
.agenda-row p,
.ticket-panel p,
.faq-list p {
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 36px;
}

.card-grid {
  display: grid;
  gap: 18px;
}

.highlights-grid {
  grid-template-columns: repeat(4, 1fr);
}

.feature-card {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 12px 30px rgba(18, 54, 47, 0.06);
}

.feature-card span {
  display: inline-flex;
  margin-bottom: 46px;
  color: var(--clay);
  font-size: 13px;
  font-weight: 900;
}

.soft-section {
  background: #e9efe8;
}

.audience-list {
  display: grid;
  gap: 14px;
}

.audience-list div,
.faq-list details {
  padding: 22px 24px;
  border: 1px solid rgba(18, 54, 47, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.68);
}

.audience-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 19px;
}

.agenda {
  border: 1px solid var(--line);
  background: var(--line);
}

.agenda-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  padding: 26px 30px;
  background: var(--white);
}

.agenda-row + .agenda-row {
  margin-top: 1px;
}

.agenda-row time {
  color: var(--jade);
  font-weight: 900;
}

.partners-section {
  background: var(--white);
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.partner-grid div {
  min-height: 130px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fbfaf7;
}

.partner-grid strong {
  display: block;
  margin-top: 12px;
  color: var(--ink);
  font-size: 22px;
}

.ticket-section {
  color: var(--white);
  background: var(--forest);
}

.ticket-section .section-kicker,
.ticket-section p {
  color: rgba(255, 255, 255, 0.74);
}

.ticket-panel {
  align-items: center;
}

.ticket-card {
  justify-self: end;
  width: min(100%, 440px);
  padding: 34px;
  border-radius: 8px;
  color: var(--ink);
  background: var(--white);
  box-shadow: var(--shadow);
}

.ticket-card span {
  color: var(--clay);
  font-weight: 900;
}

.ticket-card strong {
  display: block;
  margin: 14px 0 8px;
  font-size: 44px;
}

.ticket-card .button {
  width: 100%;
  margin-top: 16px;
}

.discount-box {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.discount-box label {
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
}

.discount-control {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.discount-control input,
.discount-control button {
  min-height: 46px;
  border-radius: 6px;
  font: inherit;
}

.discount-control input {
  width: 100%;
  border: 1px solid var(--line);
  padding: 0 14px;
  color: var(--ink);
  background: #fbfaf7;
}

.discount-control button {
  border: 0;
  padding: 0 16px;
  color: var(--white);
  background: var(--forest);
  font-weight: 900;
  cursor: pointer;
}

.price-summary {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfaf7;
}

.price-summary div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.price-summary strong {
  margin: 0;
  font-size: 14px;
  color: var(--ink);
}

.price-summary .price-total {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 900;
}

.price-summary .price-total strong {
  font-size: 18px;
}

.discount-message {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.discount-message.is-success {
  color: var(--jade);
  font-weight: 900;
}

.discount-message.is-error {
  color: var(--clay);
  font-weight: 900;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 900;
}

.faq-list p {
  margin: 14px 0 0;
}

.site-footer {
  padding: 34px 0;
  color: rgba(255, 255, 255, 0.7);
  background: #0e1714;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.footer-inner strong {
  display: block;
  color: var(--white);
  font-weight: 900;
}

.footer-inner span {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.footer-inner p {
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
  text-align: right;
}

@media (max-width: 980px) {
  .highlights-grid,
  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .intro-grid,
  .split,
  .ticket-panel {
    grid-template-columns: 1fr;
  }

  .ticket-card {
    justify-self: stretch;
  }
}

@media (max-width: 720px) {
  .site-header {
    padding: 14px 18px;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .event-nav {
    position: fixed;
    inset: 72px 14px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(18, 54, 47, 0.98);
    box-shadow: var(--shadow);
  }

  .event-nav a {
    padding: 14px 12px;
  }

  body.nav-open .event-nav {
    display: flex;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-content {
    padding: 116px 0 58px;
  }

  .hero-subtitle {
    font-size: 19px;
  }

  h1 {
    white-space: normal;
  }

  .hero-facts,
  .highlights-grid,
  .partner-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .discount-control {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 62px 0;
  }

  .agenda-row {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 22px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner p {
    text-align: left;
  }
}