/* ============================================================
   Variables
   ============================================================ */
:root {
  --green: #abcd03;
  --gray: #262626;
  --dark: #131313;
  --orange: #f2631d;
  --teal: #009245;
  --s1: #21dbb7;
  --s2: #e68bfc;
  --s3: #36c64e; /*#36c64e;*/
  --s4: #41c6e5; /*#41c6e5;*/
  --w: 1300px;
  --fh: 'Noto Sans TC', sans-serif;
  --fb: 'Microsoft JhengHei', '微軟正黑體', sans-serif;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--dark);
}

body {
  background: var(--dark);
  color: #fff;
  font-family: var(--fb);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  cursor: pointer;
}

ul {
  list-style: none;
}



hr {
  border: none;
}

.sec-divider {
  max-width: var(--w);
  width: 100%;
  height: 2px;
  background: #d1d1d1;
  margin: 60px auto 0;
  display: block;
}

/* ============================================================
   Container
   ============================================================ */
.container {
  max-width: var(--w);
  margin: 0 auto;
  padding: 0;
}

/* ============================================================
   Section titles
   ============================================================ */
.sec-title {
  font-family: var(--fh);
  font-size: clamp(2rem, 3.5vw, 3.15rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 56px;
  line-height: 1.2;
}

.sec-title.dark {
  color: var(--dark);
}

.sec-title.light {
  color: #fff;
}

/* ============================================================
   CTA link (image buttons)
   ============================================================ */
.cta-link {
  display: inline-block;
}

@keyframes cta-pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.04);
  }
}

.cta-link img {
  max-width: 550px;
  transition: transform 0.25s ease, filter 0.25s ease;
}

.cta-link:hover img {
  transform: scale(1.05);
  filter: brightness(1.12);
}

.cta-link:active img {
  transform: scale(0.97);
  filter: brightness(1.08);
}

/* ============================================================
   Fixed 立即報名 button
   ============================================================ */
@keyframes btn-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.75);
  }
}

.btn-reg-fixed {
  position: fixed;
  bottom: 36px;
  right: 40px;
  z-index: 1001;
  display: inline-block;
}

.btn-reg-fixed:focus-visible {
  outline: none;
}

.btn-pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 90%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  box-shadow: 0 0 0 1.2em transparent;
  animation: btn-pulse 2s ease-out infinite;
  pointer-events: none;
}

.btn-reg-main {
  width: clamp(80px, 13vw, 180px);
  display: block;
}

.btn-reg-arrow {
  position: absolute;
  bottom: -10px;
  right: -10px;
  width: 90px;
  opacity: 0;
  transform: translate(20px, 20px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

.btn-reg-fixed:hover .btn-reg-arrow {
  opacity: 1;
  transform: translate(0, 0);
}

@media (hover: none) {
  .btn-reg-fixed:hover .btn-reg-arrow {
    opacity: 0;
    transform: translate(20px, 20px);
  }

  .btn-reg-fixed:active .btn-reg-arrow {
    opacity: 1;
    transform: translate(0, 0);
  }
}


/* ============================================================
   Navbar  (h=90px, fixed, bg #131313 80%)
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 90px;
  z-index: 1000;
  background: rgba(19, 19, 19, 0.8);
  backdrop-filter: blur(6px);
}

.nav-inner {
  padding: 0 70px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.nav-logo.show {
  opacity: 1;
  pointer-events: auto;
}

.nav-logo img {
  height: 48px;
  width: auto;
}

.nav-menu {
  display: flex;
  gap: 40px;
}

.nav-menu a {
  color: #fff;
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}

.nav-menu a:hover {
  color: var(--green);
}

/* Hamburger button (hidden on desktop) */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
}

.nav-burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-burger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-burger.open span:nth-child(2) {
  opacity: 0;
}

.nav-burger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ============================================================
   Part 1 – KV
   ============================================================ */
.sc-part1 {
  position: relative;
  min-height: 1067px;
  background: var(--dark) url('../images/part1_images_2x/part1_KV_bg@2x.png') center / cover no-repeat;
  padding-inline: 24px;
}


.p1-content {
  position: relative;
  z-index: 1;
  max-width: var(--w);
  margin: 0 auto;
  padding: 150px 0 50px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0;
}

.p1-logo {
  max-width: 1100px;
}

.p1-event {
  max-width: 320px;
  margin-top: auto;
  margin-bottom: 50px;
}

.p1-unit {
  max-width: 460px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  margin-top: auto;
}

.p1-unit img {
  width: 100%;
  max-width: 400px;
  flex: none;
}

/* Entrance animations */
.anim-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.anim-fade {
  opacity: 0;
  transition: opacity 0.8s ease;
}

.anim-d1 {
  transition-delay: 0.18s;
}

.anim-d2 {
  transition-delay: 0.55s;
}

.anim-left.in {
  opacity: 1;
  transform: translateX(0);
}

.anim-fade.in {
  opacity: 1;
}

@keyframes p1-logo-pulse {

  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.03);
  }
}

.p1-logo.in {
  animation: p1-logo-pulse 3.5s ease-in-out 0.7s infinite;
}

/* ============================================================
   Part 2 – About
   ============================================================ */
.sc-part2 {
  background: var(--dark) url('../images/part2_images_2x/part2_bg@2x.png') right bottom / cover no-repeat;
  padding: 90px 24px 100px;
  height: 812px;
}

.p2-inner {
  max-width: 1300px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sc-part2 h1 {
  font-family: var(--fh);
  font-size: clamp(1.8rem, 3.5vw, 3.13rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 40px;
}

.sc-part2 h2 {
  font-family: var(--fb);
  font-size: clamp(1.5rem, 3vw, 2.75rem);
  font-weight: 700;
  color: var(--green);
  margin-bottom: 70px;
}

.sc-part2 p {
  font-size: clamp(1rem, 1.5vw, 1.35rem);
  color: rgba(255, 255, 255, 1);
  text-align: left;
  margin-bottom: 32px;
  line-height: 2;
}

.sc-part2 .cta-link {
  margin-top: 40px;
}

/* ============================================================
   Part 3 – Key Challenges
   ============================================================ */
.sc-part3 {
  background: var(--green) url('../images/part3_images_2x/p3_kv_bg@2x.png') center / cover no-repeat;
  padding: 150px 24px;
}


.p3-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.p3-card {
  position: relative;
  background: #fff;
  border-radius: 32px;
  box-shadow: 8px 12px 32px rgba(0, 0, 0, 0.22);
  padding: 32px 32px 90px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.p3-num {
  width: 90px;
  margin: 0 auto 10px;
}

.p3-title {
  text-align: center;
  padding-bottom: 40px;
  margin-bottom: 40px;
  position: relative;
}

.p3-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 5px;
  background: var(--teal);
}

.p3-card h3 {
  font-family: var(--fb);
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.45;
  white-space: nowrap;
}

.p3-card p {
  font-family: var(--fb);
  font-size: clamp(1rem, 1.2vw, 1.25rem);
  font-weight: 400;
  color: #000;
  line-height: 1.75;
  flex: 1;
  text-align: justify;
  hyphens: auto;
}

.p3-deco {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 150px;
  pointer-events: none;
}

/* ============================================================
   Part 4 – Event Info (all images)
   ============================================================ */
.sc-part4 {
  background: var(--dark) url('../images/part4_images_2x/p4_kv_bg@2x.png') center / cover no-repeat;
  padding: 150px 0 150px 24px;
  overflow: hidden;
}

.p4-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.p4-title {
  max-width: 900px;
  width: 100%;
  margin-bottom: clamp(1rem, 3vw, 2.25rem);
}

.p4-time {
  max-width: 900px;
  width: 100%;
}

.p4-who {
  max-width: none;
  align-self: flex-start;
  margin-left: -200px;
  width: calc(50vw + 650px + 200px);
}

.p4-note {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 1);
  text-align: center;
  margin-top: -24px;
}

/* ============================================================
   Part 5 – Sessions
   ============================================================ */
.sc-part5 {
  background: var(--green) url('../images/part5_images_2x/p5_kv_bg@2x.png') center / cover no-repeat;
  padding: 100px 24px;
}

.p5-badge {
  height: auto;
  max-height: 90px;
  width: auto;
  margin-bottom: clamp(1rem, 2vw, 2rem);
}


.p5-h3 {
  font-family: var(--fb);
  font-size: clamp(1.5rem, 3vw, 3.15rem);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.45;
  margin-bottom: 20px;
}

.p5-body {
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--dark);
  line-height: 1.85;
  margin-bottom: 32px;
}

.p5-line {
  width: 100%;
  height: auto;
  margin: 48px 0;
}

.p5-divider {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 48px 0;
}

.p5-divider .p5-line {
  flex: 1;
  min-width: 0;
  margin: 0;
  margin-bottom: 25px;
}

.p5-divider .cta-link {
  flex: 1;
  min-width: 0;
}

.p5-divider .cta-link img {
  width: 100%;
}

.p5-am {
  margin-bottom: 0;
}

.p5-pm {
  margin-bottom: 0;
}


.p5-pm>.cta-link {
  display: block;
  margin: 8px auto 0;
}

.p5-pm>.cta-link>img {
  margin: 0 auto;
}

/* Session cards grid */
.p5-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.p5-card {
  background: #262626;
  border-radius: 32px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.p5-card h3 {
  font-family: var(--fb);
  font-size: clamp(1.5rem, 2vw, 2rem);
  font-weight: 700;
  color: var(--dark);
  line-height: 1.45;
  white-space: nowrap;
}

.p5-title {
  text-align: center;
  padding-bottom: 25px;
  margin-bottom: 25px;
  position: relative;
}

.p5-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30%;
  height: 5px;
  background: var(--accent, var(--teal));
}


.p5-icon {
  width: 180px;
  margin: 28px auto 0;
}

.p5-bwrap {
  background: #fff;
  padding: 16px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.p5-sep {
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}


.p5-cdesc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: #000;
  line-height: 1.7;
  flex: 1;
}

.p5-clabel {
  font-family: var(--fb);
  font-size: 1.25rem;
  font-weight: 700;
  background-color: var(--dark);
  border-radius: 50px;
  padding: 6px 12px;
  margin: 0 auto;
  letter-spacing: 2px;
}

.p5-ctags {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.p5-ctags li {
  font-size: 1.25rem;
  color: #000;
  line-height: 1.6;
  display: flex;
  align-items: baseline;
  margin-left: 76px;
  gap: 6px;
}

.p5-ctags li::before {
  content: '✓';
  color: var(--accent, var(--teal));
  font-weight: 400;
  flex-shrink: 0;
}

.p5-bottom {
  width: 100%;
  height: auto;
  margin-top: auto;
}

/* Showcase section */
.sc-showcase {
  background: #454545;
  padding: 120px 24px;
  text-align: center;
}

.showcase-title {
  font-family: var(--fh);
  font-size: clamp(1.6rem, 3vw, 2.75rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: clamp(1.25rem, 2.5vw, 2.5rem);
}

.showcase-body {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: rgba(255, 255, 255, 1);
  line-height: 1.85;
  margin: 0 auto;
  letter-spacing: 0.2rem;
  text-align: start;

}

/* ============================================================
   Part 6 – Agenda
   ============================================================ */
.sc-part6-agenda {
  background: var(--dark) url('../images/part6_images_2x/p6_kv_bg@2x.png') center / cover no-repeat;
  padding: 100px 24px;
}

.sc-part6-agenda .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ag-wrap {
  width: 100%;
  margin-bottom: 16px;
}

.ag-row {
  display: grid;
  grid-template-columns: 300px 1fr;
  position: relative;
}

.ag-row::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 28px;
  right: 28px;
  height: 1px;
  background: var(--green);
}

.ag-row:last-child::after,
.ag-hl::after,
.ag-row:has(+ .ag-row.ag-hl)::after,
.ag-row:has(+ .ag-panel + .ag-row.ag-hl)::after {
  display: none;
}

.ag-hl {
  background: var(--green);
  color: var(--dark);
  font-weight: 700;
  border-radius: 50px;
  overflow: hidden;
}

.ag-time,
.ag-cnt {
  padding: 15px 20px;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  line-height: 1.5;
  display: flex;
  align-items: center;
  letter-spacing: 2px;
}

.ag-time {
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  justify-content: center;
}

.ag-tag {
  display: inline-block;
  color: var(--green);
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  width: 5em;
  text-align: center;
}

.ag-divider {
  width: 1px;
  background: var(--green);
  align-self: stretch;
  margin: 4px 10px;
  flex-shrink: 0;
}

.ag-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ag-btn {
  width: 28px;
  height: 28px;
  background: transparent;
  color: var(--green);
  font-size: 2rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
  line-height: 1;
  border: none;
  margin-left: 16px;
}

.ag-row.ag-exp>.ag-cnt>span {
  color: var(--green);
  font-weight: bold;
}


.ag-panel {
  display: none;
  padding: 20px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.ag-panel.open {
  display: block;
}

.ag-note {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  color: #FFF;
  margin: 12px 0 100px;
  text-align: center;
}


/* ============================================================
   Part 6 – Gifts
   ============================================================ */
.sc-part6-gifts {
  background: var(--dark) url('../images/part6_images_2x/p6_kv_bg3_h1450@2x.png') center top / cover no-repeat;
  padding: 80px 24px;
}

.gifts-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.gifts-grid {
  display: flex;
  gap: 0;
  margin-bottom: 48px;
  width: 100%;
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.3);
  padding-bottom: 48px;
}

.gift-item {
  flex: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 28px;
  padding: 24px 48px;
  position: relative;
}

.gift-item:first-child::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  bottom: 20%;
  width: 1.5px;
  background: rgba(255, 255, 255, 0.5);
}

.gift-body {
  flex: 1;
  text-align: left;
}

.gift-item h3 {
  font-family: var(--fb);
  font-size: clamp(1.5rem, 3.5vw, 3.15rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  white-space: nowrap;

}

.gift-item img {
  width: 230px;
  flex-shrink: 0;
}

.gift-item p {
  font-size: clamp(1rem, 1.8vw, 1.5rem);
  color: #fff;
  line-height: 1.65;
}

.lottery-section {
  width: 100%;
  padding-bottom: 72px;
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.3);
  text-align: center;
}

.lottery-grid {
  display: flex;
  justify-content: space-between;
  margin-top: 48px;
}

.lottery-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lottery-img-wrap {
  position: relative;
  display: inline-block;
}

.lottery-img-wrap img {
  width: 300px;
  height: auto;
  display: block;
}

.lottery-item p {
  font-size: clamp(0.9rem, 1.5vw, 1.25rem);
  color: #fff;
  font-weight: 600;
  letter-spacing: 1px;
}

.lottery-section+.cta-link {
  margin-top: 72px;
}

/* ============================================================
   Part 6 – Notes
   ============================================================ */
.sc-part6-notes {
  background: #fff;
  padding: 80px 24px 60px;
}

.sc-part6-notes h2 {
  font-family: var(--fh);
  font-size: clamp(1.6rem, 3.5vw, 3.15rem);
  font-weight: 700;
  color: #000;
  margin-bottom: 28px;
}


.sc-part6-notes li {
  font-size: 14px;
  color: #000;
  line-height: 1.85;
  margin-bottom: 10px;
}

/* ============================================================
   Part 6 – Sponsors
   ============================================================ */
.sc-part6-sponsors {
  background: #fff;
  padding: 60px 24px;
}

.sc-part6-sponsors .container {
  display: flex;
  flex-direction: column;
  gap: 42px;
}

.sp-group {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.sp-label {
  height: 55px;
  width: auto;
  flex-shrink: 0;
  margin-top: 6px;
}

.sp-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 20px;
  align-items: center;
}

.sp-group.Original>.sp-logos {
  gap: 16px 8px;

}


.sp-logos img {
  height: 50px;
  width: auto;
  object-fit: contain;
}

.sp-group:first-child .sp-logos img {
  height: 70px;
}

.sp-note {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: #8a8a8a;
  white-space: nowrap;
  padding-left: 120px;
}

.sp-note::after {
  content: '';
  flex: 1;
  height: 2px;
  background: #d1d1d1;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--gray);
  padding: 40px 24px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.site-footer img {
  height: 2rem;
  width: auto;
}

.site-footer p {
  font-size: 1rem;
  color: #fff;
}

.site-footer a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-size: 1rem;
}

/* ============================================================
   p4-who: reset left extension when container < 1300px
   ============================================================ */
@media (max-width: 1350px) {

  /* blank1≈15.6%, content≈67.8%, blank2≈16.6%; content fills 24px→100vw, blank2 clipped by overflow:hidden */
  .p4-who {
    width: calc(147.5vw - 35px);
    margin-left: calc(-23vw + 5.5px);
  }

  .sc-part2 {
    height: auto;
  }

  .p4-title,
  .p4-time,
  .p4-note {
    padding-right: 24px;
  }

  .sc-part4 .cta-link {
    padding-right: 24px;
  }
}

/* ============================================================
   Responsive – Tablet  ≤1024px
   ============================================================ */
@media (max-width: 1024px) {
  .p1-unit {
    flex-direction: column;
    max-width: 50vw;
    gap: 20px;
    align-items: center;
  }

  .sp-group.Promote .sp-logos,
  .sp-group.Original .sp-logos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .sp-group.Promote .sp-logos img,
  .sp-group.Original .sp-logos img {
    width: 100%;
    height: auto;
    max-height: 50px;
    object-fit: contain;
  }

  .p3-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .p5-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .sc-part3 {
    padding-block: 100px;
  }

  .sc-part4 {
    padding-top: 100px;
    padding-bottom: 100px;
  }

  .sc-part5 {
    padding-block: 80px;
  }

  .sc-part6-agenda,
  .sc-part6-gifts {
    padding-block: 64px;
  }

  .sc-part6-notes {
    padding-top: 64px;
    padding-bottom: 64px;
  }
}

/* ============================================================
   Responsive – Mobile  ≤768px
   ============================================================ */
@media (max-width: 768px) {
  .nav-inner {
    padding: 0 20px;
  }

  .nav-burger {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 90px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(19, 19, 19, 0.97);
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu li a {
    display: block;
    padding: 14px 24px;
    font-size: 1rem;
    letter-spacing: 0.06em;
  }

  .nav-logo img {
    height: 36px;
  }

  .btn-reg-fixed {
    bottom: 20px;
    right: 20px;
  }


  .btn-reg-arrow {
    width: 48px;
  }

  /* Part 1 mobile */
  .sc-part1 {
    height: auto;
    min-height: 100svh;
    background: var(--dark) url('../images/part1_images_2x/part1_KV_bg-Mobile2.png') center / cover no-repeat;
  }

  .p1-content {
    padding: 110px 0 60px;
    min-height: 100svh;
  }

  .p1-logo {
    max-width: 90vw;
  }

  .p1-event {  /*萬豪*/
    max-width: 58vw;
	padding-top: 60vw;
    
  }

  .p1-unit {
    max-width: 90vw;
	  
  }

  .p1-unit img {
    width: 100%;
    max-width: 320px;
    flex: none;
	 
	  
  }

  /* Part 2 mobile */
  .sc-part2 {
    height: auto;
    padding-block: 72px 60px;
    background-image: none;
  }

  .sc-part2 h1 {
    font-size: 1.4rem;
  }

  .sc-part2 h2 {
    font-size: 1rem;
    margin-bottom: 40px;
  }

  .sc-part2 p {
    font-size: 0.95rem;
    line-height: 1.85;
    margin-bottom: 24px;
  }

  .p3-cards {
    grid-template-columns: 1fr;
  }

  .p5-cards {
    grid-template-columns: 1fr;
  }

  .ag-row {
    grid-template-columns: 1fr;
  }

  .ag-time {
    padding: 12px 24px 2px;
    justify-content: flex-start;
    letter-spacing: 1px;
  }

  .ag-cnt {
    padding: 2px 24px 14px;
  }

  .gifts-grid {
    flex-direction: column;
  }

  .gift-item {
    padding: 24px 16px;
  }

  .gift-item:first-child::after {
    top: auto;
    right: auto;
    bottom: 0;
    left: 20%;
    width: 60%;
    height: 2px;
  }

  .sp-group {
    flex-direction: column;
    gap: 12px;
  }

  .cta-link img {
    max-width: 92vw;
  }

  .sec-title {
    font-size: 1.9rem;
    margin-bottom: 36px;
  }

  .sc-part3 {
    padding-block: 64px;
  }

  .sc-part4 {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .sc-part5 {
    padding-block: 56px;
  }

  .sc-part6-agenda,
  .sc-part6-gifts {
    padding-block: 48px;
  }

  .sc-part6-notes {
    padding-top: 48px;
    padding-bottom: 2px;
  }

  .p5-divider {
    flex-direction: column-reverse;
    align-items: flex-start;
  }

  .p5-divider .cta-link img {
    max-width: 92vw;
  }

  .sc-showcase {
    padding: 64px 24px;
  }

  .ag-note {
    margin: 12px 0 32px;
  }

  .gift-item img {
    width: 130px;
  }


  .lottery-grid {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }

  .lottery-img-wrap img {
    width: 180px;
  }


  .sc-part6-notes ul {
    padding-left: 20px;
  }

  .sec-divider {
    margin: 20px auto 0;
  }

  .sc-part6-sponsors {
    padding: 24px;
  }

  .sp-note {
    padding-left: 0;
  }

  .p3-deco {
    width: 100px;
  }

  .p5-bottom {
    width: 50%;
    margin-left: auto;
  }
}