/* =============================================
   EZGUILD NEW INDEX — Design System
   ============================================= */
:root {
  --c-bg:        #020813;
  --c-bg2:       #080f1e;
  --c-surface:   rgba(255,255,255,0.03);
  --c-border:    rgba(255,255,255,0.08);
  --c-cyan:      #00d4ff;
  --c-cyan-dim:  rgba(0,212,255,0.15);
  --c-cyan-glow: rgba(0,212,255,0.35);
  --c-purple:    #8b5cf6;
  --c-purple-dim:rgba(139,92,246,0.15);
  --c-gold:      #f59e0b;
  --c-gold-dim:  rgba(245,158,11,0.15);
  --c-green:     #10b981;
  --c-text:      #e2e8f0;
  --c-muted:     #64748b;
  --c-subtle:    #4a5a72;
  --font-main:   'Outfit', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --r-card:      16px;
  --r-btn:       50px;
  --shadow-cyan: 0 0 30px rgba(0,212,255,0.25), 0 0 60px rgba(0,212,255,0.1);
  --shadow-card: 0 8px 32px rgba(0,0,0,0.5);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  /* Fixed navbar 高度補償，錨點跳轉不被遮擋 */
  scroll-padding-top: 80px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-main);
  background: var(--c-bg);
  color: var(--c-text);
  overflow-x: hidden; /* 防止任何元素溢出造成水平滾動 */
  max-width: 100vw;
  line-height: 1.6;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-cyan); border-radius: 99px; }

/* ── Selection ── */
::selection { background: var(--c-cyan-glow); color: #fff; }

/* ── Canvas BG ── */
#ni-canvas {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
}

/* ── Glow Orbs — 限制在視窗內，防止造成水平滾動 ── */
.ni-orb {
  position: fixed; border-radius: 50%;
  pointer-events: none; z-index: 0; filter: blur(80px);
  max-width: 100vw; overflow: hidden;
}
.ni-orb-1 {
  width: min(600px, 80vw); height: min(600px, 80vw);
  background: radial-gradient(circle, rgba(0,212,255,0.12) 0%, transparent 70%);
  top: -200px; right: -100px;
}
.ni-orb-2 {
  width: min(500px, 70vw); height: min(500px, 70vw);
  background: radial-gradient(circle, rgba(139,92,246,0.12) 0%, transparent 70%);
  bottom: 10%; left: -100px;
}
.ni-orb-3 {
  width: min(400px, 60vw); height: min(400px, 60vw);
  background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 70%);
  top: 50%; right: -80px;
}

/* ── Wrapper ── */
.ni-wrap { position: relative; z-index: 1; overflow: hidden; width: 100%; }

/* ── Container ── */
.ni-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   NAVBAR
   ============================================= */
.ni-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 20px 0;
  background: transparent;
  border-bottom: 1px solid transparent; /* 預設 1px 透明邊框佔位，避免寬度重排 */
  transition: padding 0.4s ease, background 0.4s ease, border-color 0.4s ease, backdrop-filter 0.4s ease; /* 避免使用 all */
}
.ni-nav.scrolled {
  background: rgba(2,8,19,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--c-border); /* 僅改變邊框顏色 */
  padding: 12px 0;
}
.ni-nav-inner {
  display: flex; align-items: center; justify-content: space-between;
}
.ni-logo {
  font-size: 1.6rem; font-weight: 800; letter-spacing: -0.5px;
  text-decoration: none; color: #fff;
}
.ni-logo span {
  background: linear-gradient(135deg, var(--c-cyan), #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ni-nav-links {
  display: flex; align-items: center; gap: 8px;
}
.ni-nav-link {
  color: var(--c-muted); text-decoration: none;
  font-size: 0.9rem; font-weight: 500; padding: 8px 16px;
  border-radius: var(--r-btn); transition: all 0.25s;
}
.ni-nav-link:hover { color: var(--c-cyan); background: var(--c-cyan-dim); }
.ni-nav-cta {
  text-decoration: none; color: var(--c-bg);
  background: var(--c-cyan); font-size: 0.9rem; font-weight: 700;
  padding: 9px 22px; border-radius: var(--r-btn);
  transition: all 0.25s; white-space: nowrap;
  box-shadow: 0 0 20px rgba(0,212,255,0.4);
}
.ni-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0,212,255,0.6);
}
/* Hamburger */
.ni-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.ni-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--c-text); border-radius: 2px;
  transition: all 0.3s;
}
.ni-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ni-hamburger.open span:nth-child(2) { opacity: 0; }
.ni-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
/* Mobile menu — 用 visibility+opacity 取代 display 切換，才有淡入動畫 */
.ni-mobile-menu {
  display: flex; position: fixed;
  top: 0; left: 0; right: 0; bottom: 0; z-index: 999;
  background: rgba(2,8,19,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  flex-direction: column; align-items: center; justify-content: center;
  gap: 24px;
  opacity: 0; visibility: hidden;
  transform: translateY(-16px);
  transition: opacity 0.35s ease, transform 0.35s ease, visibility 0.35s;
  pointer-events: none;
}
.ni-mobile-menu.open {
  opacity: 1; visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.ni-mobile-menu .ni-nav-link {
  font-size: 1.4rem; padding: 12px 32px;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.ni-mobile-menu.open .ni-nav-link {
  opacity: 1; transform: translateY(0);
}
.ni-mobile-menu.open .ni-nav-link:nth-child(1) { transition-delay: 0.05s; }
.ni-mobile-menu.open .ni-nav-link:nth-child(2) { transition-delay: 0.10s; }
.ni-mobile-menu.open .ni-nav-link:nth-child(3) { transition-delay: 0.15s; }
.ni-mobile-menu.open .ni-nav-link:nth-child(4) { transition-delay: 0.20s; }
.ni-mobile-menu.open .ni-nav-link:nth-child(5) { transition-delay: 0.25s; }
.ni-mobile-menu .ni-nav-cta {
  font-size: 1.1rem; padding: 14px 36px;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.3s ease 0.3s, transform 0.3s ease 0.3s;
}
.ni-mobile-menu.open .ni-nav-cta { opacity: 1; transform: translateY(0); }

/* =============================================
   SECTION BASE
   ============================================= */
.ni-section {
  padding: 100px 0;
  position: relative;
}
.ni-section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 3px; color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 6px 16px; border-radius: var(--r-btn);
  margin-bottom: 20px;
}
.ni-section-tag::before {
  content: ''; display: block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 8px var(--c-cyan);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}
.ni-section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800; line-height: 1.15; margin-bottom: 16px;
  color: #fff;
}
.ni-section-sub {
  font-size: 1.05rem; color: var(--c-muted); max-width: 540px;
}
.ni-section-header { margin-bottom: 60px; }
.ni-section-header.center { text-align: center; }
.ni-section-header.center .ni-section-sub { margin: 0 auto; }

/* =============================================
   REVEAL ANIMATIONS
   ============================================= */
.ni-reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.ni-reveal.visible {
  opacity: 1; transform: translateY(0);
}
.ni-reveal-left {
  opacity: 0; transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.ni-reveal-left.visible { opacity: 1; transform: translateX(0); }
.ni-reveal-right {
  opacity: 0; transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.ni-reveal-right.visible { opacity: 1; transform: translateX(0); }
.ni-d1 { transition-delay: 0.1s; }
.ni-d2 { transition-delay: 0.2s; }
.ni-d3 { transition-delay: 0.3s; }
.ni-d4 { transition-delay: 0.4s; }

/* =============================================
   BUTTONS
   ============================================= */
.ni-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-main); font-size: 1rem; font-weight: 700;
  padding: 14px 32px; border-radius: var(--r-btn);
  text-decoration: none; cursor: pointer; border: none;
  transition: all 0.3s; white-space: nowrap;
}
.ni-btn .material-symbols-outlined { font-size: 1.1rem; }
.ni-btn-primary {
  background: linear-gradient(135deg, var(--c-cyan), #0e9ff5);
  color: #020813;
  box-shadow: 0 0 25px rgba(0,212,255,0.45);
}
.ni-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 35px rgba(0,212,255,0.6);
}
.ni-btn-outline {
  background: transparent;
  color: var(--c-cyan);
  border: 1px solid rgba(0,212,255,0.4);
}
.ni-btn-outline:hover {
  background: var(--c-cyan-dim);
  border-color: var(--c-cyan);
  transform: translateY(-3px);
}
.ni-btn-block { width: 100%; justify-content: center; }

/* =============================================
   GLASS CARD
   ============================================= */
.ni-glass {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  border-radius: var(--r-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* =============================================
   HERO SECTION
   ============================================= */
.ni-hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 120px 0 80px;
  position: relative; overflow: hidden;
}
.ni-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center; gap: 60px;
}
.ni-hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 3px; color: var(--c-cyan);
  background: var(--c-cyan-dim);
  border: 1px solid rgba(0,212,255,0.3);
  padding: 7px 18px; border-radius: var(--r-btn);
  margin-bottom: 28px;
}
.ni-hero-eyebrow::before {
  content: '';
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 10px var(--c-cyan);
  animation: pulse-dot 1.5s ease-in-out infinite;
}
.ni-hero-title {
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 900; line-height: 1.1;
  color: #fff; margin-bottom: 24px;
}
.ni-hero-title .highlight {
  background: linear-gradient(135deg, var(--c-cyan) 0%, #6366f1 50%, var(--c-purple) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ni-hero-desc {
  font-size: 1.05rem; color: var(--c-muted);
  line-height: 1.75; margin-bottom: 40px; max-width: 480px;
}
.ni-hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.ni-hero-badges {
  display: flex; gap: 20px; margin-top: 48px; flex-wrap: wrap;
}
.ni-hero-badge {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.82rem; color: var(--c-muted);
}
.ni-hero-badge .material-symbols-outlined {
  font-size: 1rem; color: var(--c-green);
}
/* Hero Visual */
.ni-hero-visual {
  position: relative;
  /* 防止浮動卡片造成水平溢出 */
  overflow: visible;
  min-width: 0;
}
/* ── Siri 流光邊框：多色光波平滑動画，不是旋轉而是彩虹色彩波動 —— */
.ni-hero-img-wrap::before {
  content: '';
  position: absolute; inset: -4px;
  background: linear-gradient(
    130deg,
    #00d4ff 0%,
    #8b5cf6 25%,
    #ec4899 50%,
    #f59e0b 75%,
    #00d4ff 100%
  );
  background-size: 300% 300%;
  border-radius: 28px; z-index: -1;
  animation: siri-flow 4s ease infinite;
  opacity: 0.95;
  filter: blur(6px);
  box-shadow: 0 0 30px rgba(0,212,255,0.35), 0 0 60px rgba(139,92,246,0.25);
}
@keyframes siri-flow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
/* 中層遮罩，遮住內側流光，並提供內容背景 */
.ni-hero-img-wrap::after {
  content: '';
  position: absolute; inset: 0px;
  background: var(--c-bg2);
  border-radius: 24px; z-index: 0;
}
.ni-hero-img-wrap {
  position: relative; border-radius: 24px; overflow: visible;
}
.ni-hero-img {
  position: relative; z-index: 1;
  width: 100%; display: block;
  border-radius: 22px;
  transition: transform 0.6s ease;
}
.ni-hero-img-wrap:hover .ni-hero-img { transform: scale(1.02); }
/* Floating cards on hero */
.ni-float-card {
  position: absolute; z-index: 10;
  padding: 10px 14px; border-radius: 14px;
  background: rgba(5,12,28,0.92);
  border: 1px solid rgba(0,212,255,0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex; align-items: center; gap: 10px;
  font-size: 0.8rem; font-weight: 600; color: #fff;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,212,255,0.1);
  min-width: 160px;
}
.ni-float-card-1 {
  bottom: -20px; left: -10px;
  animation: float-y1 4s ease-in-out infinite;
}
.ni-float-card-2 {
  top: -20px; right: -10px;
  animation: float-y2 4s ease-in-out infinite;
}
@keyframes float-y1 {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes float-y2 {
  0%,100% { transform: translateY(-10px); }
  50% { transform: translateY(0); }
}
.ni-float-card .fc-icon {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.fc-icon-cyan { background: rgba(0,212,255,0.2); color: var(--c-cyan); }
.fc-icon-gold { background: rgba(245,158,11,0.2); color: var(--c-gold); }
.ni-float-card .fc-val { font-size: 0.95rem; font-weight: 700; color: #fff; line-height: 1.2; }
.ni-float-card .fc-sub { font-size: 0.68rem; color: #94a3b8; font-weight: 400; margin-top: 1px; }

/* =============================================
   MARQUEE STRIP
   ============================================= */
.ni-marquee-wrap {
  padding: 18px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-bg2);
  overflow: hidden; position: relative; z-index: 1;
}
/* 左右漸層遮罩，視覺更精緻 */
.ni-marquee-wrap::before,
.ni-marquee-wrap::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2;
  pointer-events: none;
}
.ni-marquee-wrap::before { left: 0; background: linear-gradient(90deg, var(--c-bg2), transparent); }
.ni-marquee-wrap::after  { right: 0; background: linear-gradient(-90deg, var(--c-bg2), transparent); }
.ni-marquee-track {
  display: flex; gap: 0;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
  will-change: transform;
}
.ni-marquee-wrap:hover .ni-marquee-track { animation-play-state: paused; }
@keyframes marquee {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ni-marquee-item {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 0.75rem; font-weight: 700;
  letter-spacing: 1.5px; color: var(--c-muted);
  white-space: nowrap; padding: 0 32px;
  border-right: 1px solid var(--c-border);
}
.ni-marquee-item:last-child { border-right: none; }
.ni-marquee-item span.material-symbols-outlined {
  color: var(--c-cyan); font-size: 1rem;
}

/* =============================================
   FEATURES SECTION
   ============================================= */
.ni-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.ni-feat-card {
  padding: 32px; border-radius: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  position: relative; overflow: hidden;
  cursor: default; transition: all 0.35s;
}
.ni-feat-card::before {
  content: '';
  position: absolute;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, var(--feat-color, rgba(0,212,255,0.2)) 0%, transparent 70%);
  top: var(--my, 50%); left: var(--mx, 50%);
  transform: translate(-50%,-50%);
  opacity: 0; transition: opacity 0.3s;
  pointer-events: none;
}
.ni-feat-card:hover::before { opacity: 1; }
.ni-feat-card:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.ni-feat-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.4rem;
}
.ni-feat-icon .material-symbols-outlined { font-size: 1.5rem; }
.feat-cyan  { background: var(--c-cyan-dim);   color: var(--c-cyan);   }
.feat-gold  { background: var(--c-gold-dim);   color: var(--c-gold);   }
.feat-purp  { background: var(--c-purple-dim); color: var(--c-purple); }
.feat-green { background: rgba(16,185,129,0.15); color: var(--c-green); }
.ni-feat-title {
  font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 10px;
}
.ni-feat-desc { font-size: 0.9rem; color: var(--c-muted); line-height: 1.7; }
.ni-feat-number {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--font-mono); font-size: 2.5rem; font-weight: 900;
  color: rgba(255,255,255,0.07); line-height: 1;
  user-select: none;
}

/* =============================================
   STATS COUNTER
   ============================================= */
.ni-stats-bar {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--c-border);
  border: 1px solid var(--c-border); border-radius: 20px;
  overflow: hidden; margin-top: 60px;
}
.ni-stat {
  background: var(--c-bg2);
  padding: 36px 16px; text-align: center;
  transition: background 0.3s;
  min-width: 0; /* 防止文字超出格子 */
}
.ni-stat:hover { background: rgba(0,212,255,0.05); }
.ni-stat-val {
  font-size: clamp(1.4rem, 3vw, 2.5rem); font-weight: 900; color: #fff;
  font-family: var(--font-mono);
  background: linear-gradient(135deg, var(--c-cyan), var(--c-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  word-break: normal;
}
.ni-stat-label { font-size: 0.78rem; color: var(--c-muted); margin-top: 6px; line-height: 1.4; }

/* =============================================
   SHOWCASE (圖文交錯)
   ============================================= */
.ni-showcase-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.ni-showcase-row.reverse { direction: rtl; }
.ni-showcase-row.reverse > * { direction: ltr; }
.ni-showcase-img-wrap {
  position: relative; border-radius: 24px; overflow: hidden;
}
.ni-showcase-img-wrap::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--c-cyan-dim), var(--c-purple-dim));
  opacity: 0.4; z-index: 1; pointer-events: none;
}
.ni-showcase-img { width: 100%; display: block; border-radius: 24px; }
.ni-showcase-glow {
  position: absolute; inset: -40px;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.ni-showcase-points { margin-top: 28px; display: flex; flex-direction: column; gap: 20px; }
.ni-showcase-point {
  display: flex; gap: 16px; align-items: flex-start;
}
.ni-point-icon {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.ni-point-icon .material-symbols-outlined { font-size: 1.2rem; }
.ni-showcase-point h4 {
  font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 4px;
}
.ni-showcase-point p { font-size: 0.87rem; color: var(--c-muted); line-height: 1.6; }

/* =============================================
   TESTIMONIALS
   ============================================= */
.ni-testi-grid {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 20px;
}
.ni-testi-card {
  padding: 28px; border-radius: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  transition: all 0.3s;
}
.ni-testi-card:hover {
  border-color: rgba(0,212,255,0.2);
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(0,212,255,0.08);
}
.ni-testi-stars { color: var(--c-gold); font-size: 0.9rem; margin-bottom: 16px; }
.ni-testi-text {
  font-size: 0.92rem; color: var(--c-text); line-height: 1.75;
  margin-bottom: 24px; font-style: italic;
}
.ni-testi-text::before { content: '"'; color: var(--c-cyan); font-size: 1.5rem; line-height: 0; vertical-align: -0.3rem; margin-right: 2px; }
.ni-testi-text::after  { content: '"'; color: var(--c-cyan); font-size: 1.5rem; line-height: 0; vertical-align: -0.3rem; margin-left: 2px; }
.ni-testi-user { display: flex; align-items: center; gap: 12px; }
.ni-testi-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-cyan), var(--c-purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; font-weight: 800; color: #fff; flex-shrink: 0;
}
.ni-testi-name { font-size: 0.9rem; font-weight: 700; color: #fff; }
.ni-testi-guild { font-size: 0.77rem; color: var(--c-muted); }

/* =============================================
   FAQ
   ============================================= */
.ni-faq-list { max-width: 780px; margin: 0 auto; }
.ni-faq-item {
  border: 1px solid var(--c-border);
  border-radius: 14px; overflow: hidden;
  margin-bottom: 12px; transition: border-color 0.3s;
}
.ni-faq-item.open { border-color: rgba(0,212,255,0.3); }
.ni-faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; cursor: pointer;
  background: rgba(255,255,255,0.02);
  transition: background 0.2s;
}
.ni-faq-q:hover { background: rgba(0,212,255,0.05); }
.ni-faq-q h3 { font-size: 0.97rem; font-weight: 600; color: var(--c-text); }
.ni-faq-q .material-symbols-outlined {
  color: var(--c-cyan); font-size: 1.1rem;
  transition: transform 0.35s; flex-shrink: 0;
}
.ni-faq-item.open .ni-faq-q .material-symbols-outlined { transform: rotate(180deg); }
.ni-faq-ans {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  padding: 0 24px;
}
.ni-faq-item.open .ni-faq-ans { max-height: 600px; padding: 0 24px 20px; }
.ni-faq-ans p { font-size: 0.9rem; color: var(--c-muted); line-height: 1.75; }

/* =============================================
   APPLY SECTION
   ============================================= */
.ni-apply-wrap {
  max-width: 720px; margin: 0 auto;
  padding: 48px; border-radius: 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--c-border);
  position: relative; overflow: hidden;
}
.ni-apply-wrap::before {
  content: '';
  position: absolute; top: -100px; right: -100px;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.ni-apply-title {
  font-size: 1.6rem; font-weight: 800; color: #fff; margin-bottom: 8px;
}
.ni-apply-sub { font-size: 0.92rem; color: var(--c-muted); margin-bottom: 36px; }
.ni-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.ni-form-group { margin-bottom: 18px; }
.ni-form-label {
  display: block; font-size: 0.82rem; font-weight: 600;
  color: var(--c-muted); margin-bottom: 8px; letter-spacing: 0.5px;
}
.ni-form-label span { color: var(--c-cyan); }
.ni-input-wrap { position: relative; }
.ni-input-wrap .material-symbols-outlined {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  font-size: 1.1rem; color: var(--c-muted); pointer-events: none;
}
.ni-input, .ni-textarea {
  width: 100%; background: rgba(255,255,255,0.05);
  border: 1px solid var(--c-border); border-radius: 10px;
  padding: 12px 44px 12px 16px;
  color: var(--c-text); font-family: var(--font-main); font-size: 0.93rem;
  transition: all 0.25s; outline: none;
}
.ni-input::placeholder, .ni-textarea::placeholder { color: var(--c-subtle); }
.ni-input:focus, .ni-textarea:focus {
  border-color: var(--c-cyan);
  background: rgba(0,212,255,0.05);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.ni-textarea { padding-right: 16px; resize: vertical; min-height: 90px; }
.ni-apply-success {
  text-align: center; padding: 40px 0;
}
.ni-apply-success .material-symbols-outlined {
  font-size: 3.5rem; color: var(--c-green);
  display: block; margin-bottom: 16px;
}
.ni-apply-success h3 { font-size: 1.3rem; color: #fff; margin-bottom: 10px; }
.ni-apply-success p { color: var(--c-muted); font-size: 0.92rem; }
.ni-error-msg { color: #f87171; font-size: 0.85rem; margin-top: 8px; }
.ni-account-info {
  margin-top: 20px;
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 12px;
  padding: 20px;
  display: inline-block;
  text-align: left;
  max-width: 400px;
  width: 100%;
  box-sizing: border-box;
}
.ni-account-credentials {
  margin: 12px 0;
  padding: 12px;
  background: rgba(15, 23, 42, 0.6);
  border-radius: 8px;
  font-family: monospace;
}
.ni-account-credentials > div {
  margin-bottom: 6px;
  font-size: 0.95rem;
}
.ni-account-credentials > div:last-child {
  margin-bottom: 0;
}
.ni-account-credentials strong {
  color: var(--c-muted);
  width: 60px;
  display: inline-block;
}
.ni-account-credentials span {
  color: var(--c-cyan);
  font-weight: bold;
}

/* =============================================
   CTA BANNER
   ============================================= */
.ni-cta-banner {
  margin: 0 24px; border-radius: 28px; padding: 70px 48px;
  background: linear-gradient(135deg, rgba(0,212,255,0.08) 0%, rgba(139,92,246,0.12) 50%, rgba(0,212,255,0.06) 100%);
  border: 1px solid rgba(0,212,255,0.2);
  text-align: center; position: relative; overflow: hidden;
}
.ni-cta-banner::before {
  content: '';
  position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.ni-cta-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900; color: #fff; margin-bottom: 16px;
}
.ni-cta-desc { font-size: 1rem; color: var(--c-muted); margin-bottom: 36px; }
.ni-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* =============================================
   FOOTER
   ============================================= */
.ni-footer {
  border-top: 1px solid var(--c-border);
  padding: 48px 0 32px;
}
.ni-footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 48px; margin-bottom: 48px;
}
.ni-footer-logo { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 12px; }
.ni-footer-logo span {
  background: linear-gradient(135deg, var(--c-cyan), var(--c-purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ni-footer-desc { font-size: 0.87rem; color: var(--c-muted); line-height: 1.7; }
.ni-footer-col h4 { font-size: 0.82rem; font-weight: 700; color: var(--c-text); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 16px; }
.ni-footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.ni-footer-col ul li a {
  font-size: 0.87rem; color: var(--c-muted); text-decoration: none;
  transition: color 0.2s;
}
.ni-footer-col ul li a:hover { color: var(--c-cyan); }
.ni-footer-bottom {
  border-top: 1px solid var(--c-border);
  padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.ni-footer-copy { font-size: 0.82rem; color: var(--c-muted); }
.ni-footer-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--c-cyan); letter-spacing: 1px;
}
.ni-footer-badge::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 8px var(--c-green);
  animation: pulse-dot 2s ease-in-out infinite;
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .ni-hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .ni-hero-visual { max-width: 560px; margin: 0 auto; }
  .ni-float-card-1 { left: 0; bottom: -16px; }
  .ni-float-card-2 { right: 0; top: -16px; }
  .ni-showcase-row { grid-template-columns: 1fr; gap: 40px; }
  .ni-showcase-row.reverse { direction: ltr; }
  .ni-footer-grid { grid-template-columns: 1fr 1fr; }
  .ni-footer-grid > :first-child { grid-column: 1/-1; }
}
@media (max-width: 768px) {
  .ni-section { padding: 72px 0; }
  .ni-features-grid { grid-template-columns: 1fr; }
  .ni-stats-bar { grid-template-columns: repeat(2,1fr); }
  .ni-stat-val { font-size: 1.5rem; } /* 768px 以下縮小數據字級防截斷 */
  .ni-testi-grid { grid-template-columns: 1fr; }
  .ni-form-row { grid-template-columns: 1fr; }
  .ni-apply-wrap { padding: 28px 20px; }
  .ni-cta-banner { margin: 0; border-radius: 16px; padding: 52px 24px; }
  .ni-footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .ni-nav-links { display: none; }
  .ni-hamburger { display: flex; z-index: 1001; position: relative; }
  .ni-float-card { display: none; } /* 手機版隱藏浮動卡，避免遮擋 */
  .ni-hero-title { font-size: 2.4rem; }
  .ni-orb { display: none; } /* 手機版隱藏背景光暈球，根治特定瀏覽器溢出跑版 */
}
@media (max-width: 480px) {
  /* 手機版 stats 改為單欄，完全無截斷風險 */
  .ni-stats-bar {
    grid-template-columns: 1fr;
  }
  .ni-stat {
    padding: 20px 16px;
  }
  .ni-stat-val {
    font-size: 1.8rem; /* 單欄空間充裕，字體可稍微放大並保持置中 */
  }
  .ni-hero-btns { flex-direction: column; }
  .ni-hero-btns .ni-btn { width: 100%; justify-content: center; }
  /* 手機版 Hero 圖片區填滿視窗寬度，不溢出 */
  .ni-hero-visual { max-width: 100%; }
}

/* =============================================
   REFACTORED INLINE STYLES (高內聚、低耦合重構)
   ============================================= */

/* 浮動卡片圖示大小 */
.ni-float-card .fc-icon .material-symbols-outlined {
  font-size: 1.1rem;
}

/* 四大特色卡片的不同發光底色 */
.ni-feat-card.feat-card-cyan {
  --feat-color: rgba(0,212,255,0.18);
}
.ni-feat-card.feat-card-gold {
  --feat-color: rgba(245,158,11,0.18);
}
.ni-feat-card.feat-card-purple {
  --feat-color: rgba(139,92,246,0.18);
}
.ni-feat-card.feat-card-green {
  --feat-color: rgba(16,185,129,0.18);
}

/* Showcase 描述文字 */
.ni-showcase-desc {
  color: var(--c-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 8px;
}

/* Showcase 左右漸變背景/特定發光色 */
.ni-showcase-glow.purple {
  background: radial-gradient(ellipse at center, rgba(139,92,246,0.15) 0%, transparent 70%);
}

/* Showcase 第二列與上方的間距 */
.ni-showcase-row.reverse {
  margin-top: 100px;
}

/* 紫色標籤樣式 */
.ni-section-tag.purple {
  color: var(--c-purple);
  background: var(--c-purple-dim);
  border-color: rgba(139,92,246,0.3);
}
.ni-section-tag.purple::before {
  background: var(--c-purple);
  box-shadow: 0 0 8px var(--c-purple);
}

/* 置中標籤樣式 */
.ni-section-tag.center {
  margin: 0 auto 20px;
}

/* 評價頭像漸層背景色 */
.ni-testi-avatar.avatar-purple {
  background: linear-gradient(135deg, var(--c-purple), #4f46e5);
}
.ni-testi-avatar.avatar-gold {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
}
.ni-testi-avatar.avatar-green {
  background: linear-gradient(135deg, #10b981, #0ea5e9);
}

/* 申請開通提交按鈕間距 */
.ni-apply-btn {
  margin-top: 8px;
}

/* 特定區塊內邊距補償 */
.ni-section.pt-0 {
  padding-top: 0;
}

/* 全域隱藏類別，用以在 JS 中切換顯示狀態 */
.hidden {
  display: none !important;
}